Stroke A stroke (also referred to as CVA – cerebrovascular accident) is an episode of acute neurological dysfunction persisting ≥ 24 hours with acute infarction or hemorrhage. A transient ischaemic attack (TIA) can present with similar symptoms but only last minutes to hours and fully resolve in 24 hours. Epidemiology (incidence, prevalence) Demographic features (age, sex, ethnicity etc) Risk factors Aetiology (cause) After coronary heart disease and cancer, stroke is the 3rd most common cause of death in western countries. Approximately 9000 people per year have a stroke in NZ. Risk increases with age Maori & PI > NZ European Hypertension, diabetes, heart disease, atrial fibrillation, smoking, obesity, carotid artery stenosis, history of TIA, high cholersterol, excessive alcohol intake. There are two types of stroke: 1) Ischamic (80%) Caused by an interruption of the blood supply. 2) Hamorrhagic (20%) Caused by a ruptured blood vessel The main causes of ischaemic stroke are: Thrombosis: obstruction of a blood vessel by a blood clot formed locally Embolism: obstruction of a blood vessel caused by a blood clot (embolus) coming from somewhere else in the body Systemic hypoperfusion Pathological changes Haemorrhagic strokes are most common in small blood vessels and potential causes are hypertension, trauma, bleeding disorders, drug use and vascular malformations. When an ischaemic stroke occurs, part of the brain suffers from lack of blood. Without blood the brain tissue is no longer supplied with oxygen and irreversible injury is caused due to cell death. Due to the organisation of blood supply to the brain (Circle of Willis), collateral circulation is possible so while part of the brain tissue may die immediately, other parts are potentially only injured and may recover. The area of the brain where tissue might recover is called the penumbra. Ischaemia also triggers pathophysiological processes which result in cellular injury and death such as the release of glutamate or the production of oxygen free radicals. Clinical features (typical presentation) Special tests and investigations Medical management (if applicable) A haemorrhagic stroke causes tissue injury by compression of tissue from an expanding haematoma. This can result in tissue injury and, consequently the increased pressure might lead to a decreased blood supply to the surrounding tissue. Sudden onset of neurological symptoms which last more than 24 hours. Presentation depends on part of brain affected however typical presentation is a sensory-motor hemiparesis or hemiplegia, contralateral to the side of the lesion in the brain. (hemiparesis is defined as weakness on one side of the body; hemiplegia is total paralysis of the arm, leg and trunk on one side of the body). Neurological examination may also find: Muscle weakness affecting arm, leg or face Aphasia Dysarthria Dysphagia Gait problems Spatial neglect Visual problems Typically in haemorrhagic strokes, onset of symptoms is more rapid and often associated with headache and/or vomiting. CT or MRI ECG – to detect arrhythmias of the heart which may send clots in the heart to the brain Ultrasound of the carotid arteries Stroke is a medical emergency. In the case of an ischaemic stroke, the more rapidly the blood flow is restored to the brain, the fewer brain cells die. Thrombolysis involves the administration of a clot-dissolving intravenous drug which can completely reverse the damaging effects of an occluded vessel if given within 3-4hours after stroke onset. Acute treatments focus on minimising enlargement of the clot or preventing new clots from forming by means of medications such as: Aspirin Clopidogrel Dipyridamole Clinical course/prognosis 20% of first ever stroke patients die within a month. Over 50% of people will be left with significant disability Over 10% will have a recurrent stroke within the first year Initial motor and functional ability is the most important predictor of long-term motor and functional performance after stroke. Most significant motor and functional recovery is observed in the first month after stroke. Recovery after this initial period does happen, sometimes long after stroke. Further reading: Lennon S, Ramdharry G, Verheyden G, ProQuest. Physical management for neurological conditions. Fourth edition. ed. Amsterdam]: Elsevier; 2018. Chapter 7 (available as an e-book through library) Parkinson’s disease Epidemiology (incidence, prevalence) Demographic features (age, sex, ethnicity etc) Risk factors Aetiology (cause) Pathological changes Clinical features (typical presentation) 2nd most common neurodegenerative disorder worldwide, affecting an estimated 10 million people Global incidence 12-230/100000 people Prevalence increases with age Most common in older adults (affects 1% of adults over 60) and in males Increasing age Family history Head trauma Exposure to environmental toxins Idiopathic PD accounts for over 70% of all cases cause is unknown – likely due to an interaction between infective or toxic environmental factors and genetic mutations. Secondary parkinsonism may result from a variety of pathological processes including drugs, toxins, trauma and vascular disease. PD is considered predominantly as a disorder of the basal ganglia. The basal ganglia have connections with the cerebral cortex and thalamus and are important for automatic and voluntary motor control, procedural learning and emotional functions. The 2 recognised pathological findings in the brains of people with PD are: Loss of pigmented dopaminergic neurons in the substantia nigra. Approx 60-80% of dopaminergic neurons are lost before motor signs occur. As the available dopamine reduces, compensatory changes in the BG arise: the circuit from thalamus to cortex suppress movement, causing bradykinesia. The presence of Lewy bodies which are an accumulation of an abnormal synaptic protein. Motor signs Bradykinesia (reduced movement speed and amplitude) Akinesia (difficulty initiating movements) Episodes of freezing Rigidity (resistance to passive movement) Special tests and investigations Medical management (if applicable) Clinical course/prognosis Tremor Impaired balance and postural control Non-motor signs Neuropsychiatric symptoms: depression, anxiety, hallucinations, cognitive changes Sleep disorders Autonomic symptoms Quiet speech Loss of facial expression Gastrointestinal symptoms: dribbling, dysphagia, nausea and constipation Sensory impairments Diagnosis is based primarily on motor presentation and response to medication. Pharmalogical management Dopaminergic drugs which increase the amount of dopamine in the brain, or stimulate the parts of the brain where dopamine works or, block the action of enzymes that break down dopamine. Anticholinrgic drugs can control tremor PD is a progressive disorder with no cure Age of onset, motor severity, cognitive impairment and psychotic symptoms predict increased mortality risk Further reading: Lennon S, Ramdharry G, Verheyden G, ProQuest. Physical management for neurological conditions. Fourth edition. ed. Amsterdam]: Elsevier; 2018. Chapter 11 (available as an e-book through library) Type 2 diabetes Diabetes occurs when there is too much glucose in the blood. Blood-sugar levels are normally controlled by a hormone called insulin, which is made in the pancreas. High blood glucose levels may be caused by (a) insulin deficiency, when the pancreas is not able to make enough insulin (as in Type I diabetes), or (b) insulin resistance, when your body is not responding to insulin as it should (as in Type 2 diabetes). Insulin is a hormone that helps glucose enter the body's cells where it is used for energy. If there is insufficient insulin, or it is not working effectively to act as a key to open the channel for glucose to enter the cells, glucose builds up in your bloodstream. The normal level of glucose in the body is between 4 and 8 mmol/L. When you have diabetes, your body is not able to control your blood glucose levels and keep it in the safe range. If not well controlled, high blood glucose levels will eventually lead to damage to many parts of the body. Prediabetes is when the amount of glucose in the blood is higher than normal and it increases the risk of getting type 2 diabetes. Prediabetes affects 1 in 4 adults. Making healthy lifestyle at this point can delay or prevent the development of type 2 diabetes. Useful resources https://www.diabetes.org.nz/what-is-diabetes/ https://www.healthnavigator.org.nz/health-a-z/d/diabetes-type-2/ Epidemiology (incidence, prevalence) There are over 240,000 people in New Zealand who have been diagnosed with diabetes. Of all those with a diagnosis of diabetes, 10% have type 1 diabetes; it is typically diagnosed in childhood or young adults. Type 2 diabetes is the most common form and typically occurs in adulthood. However, it is increasingly being diagnosed in younger people. As a condition, diabetes is often undiagnosed, with an estimated 100,000 people who have it but don’t know. Demographic features (age, sex, ethnicity etc) Type 2 diabetes is more common in Māori, Pacific and Asian populations; Māori and Pacific Islanders are three times more likely to develop diabetes than other New Zealanders. The incidence of onset of type 2 diabetes increased with age. Risk factors There are some non-modifiable risk factors for the development of type 2 diabetes: Age over 45 Māori, Pacific or Asian and aged over 35 Have a family member with diabetes The following are modifiable risk factors: Obesity Hypertension Poor diet Physical inactivity Hyperlipidaemia https://vimeo.com/99966777 Aetiology (cause) Type 1 diabetes is believed to be caused by an autoimmune reaction. Type 2 diabetes is considered a disease of lifestyle and the modifiable risk factors listed above can contribute to its development. https://vimeo.com/99962828 (diabetes overview and symptoms) Pathological changes Type 2 diabetes is a progressive disease, meaning it slowly worsens over time. The cells that produce insulin are damaged or die over time and our bodies are less able to make enough insulin to maintain the blood glucose levels within the healthy range. This means people with type 2 diabetes may also experience insulin deficiency and require insulin injections. Well controlled blood glucose levels help reduce the risk of diabetes-related complications such as poor vision, heart disease or stroke, kidney damage (diabetes is the top cause of kidney failure), erectile dysfunction and lower limb numbness. https://vimeo.com/99977335 Clinical features (typical presentation) Common symptoms: Feeling thirsty Tiredness Frequent urination Urinary and skin infections Blurred vision Delayed healing of cuts/grazes About 50% of people with type 2 diabetes have no symptoms. To watch for: Hypoglycaemia Hypoglycaemia, or low blood glucose, occurs when the blood glucose level (BGL) is less than 4 mmol/l, or where symptoms of hypoglycaemia are experienced at a level close to this. Symptoms include looking pale; feeling shaky or sweaty; sudden hunger; tingling around mouth and tongue; dizziness; confusion; blurred vision. Management: one serving of a quick-acting carbohydrate such as 6 large jelly beans or 3 Dextro Energy tablets. Hyperglycaemia Hyperglycaemia, or high blood glucose, occurs when BGLs are higher than normal; greater than 8mmol/l. A high of up to 16-20mmol/l is usually manageable as long as it settles with 24 hours. The aim should be to keep BGLs in the healthy range (4mmol/l – 8mmol/l) 80% of the time. It is not advisable to exercise where blood glucose levels exceed 17mmol/l. The main symptoms are feeling thirsty; dry mouth; passing large amounts of urine; and extreme tiredness. Management: short-acting insulin; drink extra unsweetened fluids; retest BGL 2 hourly until return to normal levels; test for ketones in blood if symptoms worsening. Special tests and investigations The gold standard test for both screening and diagnosis of diabetes in the glycated haemoglobin test or HbA1c, which measures your average blood glucose over the previous 8 to 12 weeks and gives an indication of your longer-term blood glucose control. An HbA1c of ≤40 mmol/mol is normal. An HbA1c of 41-49mmol/mol indicates prediabetes. An HbA1c of ≥50mmol/mol indicates diabetes. Blood glucose levels may need to be checked and recorded periodically or, if being treated with insulin, multiple times a day using a blood glucose monitor. Many factors can affect blood glucose levels so careful monitoring is the best way to ensure that blood sugar levels remain within their normal range. Medical management (if applicable) The main treatment for type 2 diabetes is administered orally; medications include metformin; gliclazide; and glipizide. An insulin injection is required once or twice daily in the management of type 1 diabetes and in some people with type 2 diabetes over time. https://vimeo.com/99977333 (insulin) Role of physical activity Exercise improves blood glucose control in type 2 diabetes, as well as reducing cardiovascular risk, supporting weight loss, and promoting well-being. Regular exercise can prevent or delay the onset of type 2 diabetes. Regular exercise also benefits people with type 1 diabetes through improved cardiovascular fitness, muscle strength, and insulin sensitivity. https://vimeo.com/99970369 Self-management https://vimeo.com/99970367 Bronchiectasis Bronchiectasis is a respiratory condition caused by the abnormal, irreversible dilatation of the bronchi, as a result of destruction of the elastic and muscular tissue due to acute or chronic inflammation and infection. The damaged airways impair drainage of bronchial secretions resulting in chronic infection and mild to moderate airway obstruction. Without effective management, the combination of infection and chronic inflammation results in progressive lung damage. Useful resources The Bronchiectasis Toolbox: http://bronchiectasis.com.au/ Main & Denehy (2016) Cardiorespiratory Physiotherapy. Adults and Paediatrics, p.170-172 The TSANZ Position Statement on bronchiectasis is also useful: https://www.mja.com.au/system/files/issues/193_06_200910/cha10303_fm.pdf Article on the ethnicity, socioeconomic status and severity of non-CF bronchiectasis which identifies the higher burden on Māori and Pacific patients: https://onlinelibrary.wiley.com/doi/full/10.1111/imj.13739 Epidemiology (incidence, prevalence) Demographic features (age, sex, ethnicity etc.) Risk factors The prevalence of bronchiectasis is 3.7 per 100,000 population in New Zealand but there is considerable variation between ethnic groups. The incidence of bronchiectasis in New Zealand children aged under 15 is highest in Pacific children (24.7 per 100,000); higher 16.7 per 100,000 in Māori and 5.6 per 100,000 in non- Māori or Pacific Island children. The median age at diagnosis is 5.2 years. Bronchiectasis is more common amongst Māori and Pacific populations. It also more commonly affects females and the elderly. A diagnosis of cystic fibrosis Acute lung infection Being of non-European ethnicity Socio-economic deprivation increase the risk of hospitalisation. Aetiology (cause) There are two kinds of bronchiectasis: cystic fibrosis (CF)bronchiectasis and non-CF bronchiectasis. A diagnosis of cystic fibrosis is, therefore, a risk factor for bronchiectasis. Having an established lung disease, such as chronic obstructive pulmonary disease (COPD), asthma or interstitial lung disease, is a risk factor for the development of non-CF bronchiectasis. The main causes of non-CF bronchiectasis are damage to lower respiratory tract following an acute infection, such as pneumonia or whooping cough. Non-CF bronchiectasis can also develop following viral infection and is associated with immune-deficiency (such as HIV); conditions of mucociliary dysfunction (such as Primary Ciliary Dyskinesia); systemic inflammatory conditions (such as rheumatoid arthritis); gastric aspiration; tuberculosis and allergic bronchopulmonary aspergillosis. Pathological changes The pathophysiology of bronchiectasis is commonly described as distinct phases of infection and chronic inflammation; the interaction between the two creating a vicious circle resulting in bronchial destruction leading to impaired mucociliary clearance, hypersecretion of mucus and resulting airway obstruction. See diagram: http://bronchiectasis.com.au/wpcontent/uploads/2015/09/Physiology-Vicious-Cycle.png Clinical features (typical presentation) Most common symptoms: Chronic cough Sputum Other symptoms that may be present: Recurrent chest infections Fatigue and lethargy Exercise limitation Chronic sinusitis Shortness of breath/wheeze Some people are totally asymptomatic. A high resolution CT scan (c-HRCT) is the diagnostic gold standard. It is the most sensitive and specific non-invasive method for diagnosing bronchiectasis. Special tests and investigations Chest x-rays are no longer used in the diagnosis of bronchiectasis as they are often normal or shows non-specific findings in affected individuals. Lung function tests are an important assessment tool in the diagnosis and management of bronchiectasis. Airflow obstruction is the most common ventilatory pattern seen in bronchiectasis. The British Thoracic Society Guideline for non-CF bronchiectasis recommends that adults and school age children should have spirometry measured at initial assessment to determine baseline level of lung function. Sputum samples should be collected at baseline followed by 3 to 6 monthly samples to allow for documentation of microbiology; antibiotic treatment and monitoring of the condition. Medical management (if applicable) Medications may not be required when patients are well. Medications that may be administered during an exacerbation are: Antibiotics – these may oral, intravenous or nebulised. Macrolide antibiotics (such as erythromycin) target both inflammation and infection and have been shown to have beneficial clinical effects in patients with bronchiectasis. Mucoactive agents – assist with airway clearance by increasing hydration of the airway surface. These include isotonic saline (0.9%); hypertonic saline (3%-7%); and Mannitol. Note: they are not currently routinely recommended for people with bronchiectasis due to the lack of research evidence. Bronchodilators – may be prescribed if there is reversibility of airflow obstruction. Inhaled corticosteroids Physiotherapy management Physiotherapy has a vital role in supporting those with bronchiectasis to manage their condition through airway clearance techniques for excess bronchial secretions, such as active cycle of breathing techniques (ACBT), PEP devices and postural drainage. Exercise should be encouraged as it can improve exercise tolerance; reduce symptoms of breathlessness (dyspnoea); fatigue; and improve quality of life. Exercise may also be an adjunct to clearing secretions. Clinical Most people with bronchiectasis have a good prognosis. An course/prognosis established airway clearance routine and timely antibiotics in response to exacerbations helps to maintain good health. Lung function and quality of life are more likely to decline in those who do not look after themselves. Where bronchiectasis is secondary to another condition (e.g. cystic fibrosis) there may be a poorer prognosis. Factors associated with poorer prognosis include: Living with the condition smoking gram negative organisms (Escherichia coli and Pseudomonas aeruginosa) aspergillus in sputum poor FEV1 and FVC compromised immunity Jeff’s story: https://www.youtube.com/watch?v=GnNgX40cBFI Jude’s’ story: https://www.youtube.com/watch?v=VyGp12XbPzs Ischaemic/Coronary Artery Disease Reference: Reference: Main and Denehy. Cardiorespiratory Physiotherapy: Adults and Paediatrics. 5th edition. Elsevier. 2016. Pages 126-132. Epidemiology (incidence, prevalence) Demographic features (age, sex, ethnicity etc) Risk factors Coronary artery disease (CAD) is a subgroup of the wider group of cardiovascular disease. CAD is one of the leading causes of death worldwide. One in 20 New Zealanders have been diagnosed with CAD and one New Zealander dies every 90 minutes from CAD. As for all cardiovascular diseases, risk factors for CAD are either modifiable or non-modifiable. Demographic features that comprise the non-modifiable risk factors are: Age and sex (≥ 45 yr male and ≥55 yr female) Family history (father or brother who died of stroke or heart attack >55 yrs old or mother or sister < 65 yrs old) Ethnicity: The prevalence of deaths from CAD is 40.2% in Maori compared to 10.5% in Pakeha (Ministry of Health (2015) Mortality and demographic data, 2012. In: HEALTH, MO (ed.).Wellington: New Zealand Government.) In addition to the non-modifiable risk factors above, modifiable risk factors are: Smoking Hypertension Dyslipidaemia (ie. too little high density lipoprotein (good cholesterol) and too much low density lipoproteins and triglycerides (bad cholesterol) Diabetes Obesity Physical inactivity See your PHTY254 lab manual (lab 13.1) for values for blood pressure, cholesterol, obesity and blood sugar levels Aetiology (cause) CAD is caused by a build-up of cholesterol and other material, called a plaque, on the inner wall of the coronary arteries. Over time the plaque grows which narrows the inner artery diameter and obstructs blood flow. The resulting reduced blood flow results in less oxygen being delivered to the myocardium (heart muscle) causing ischaemia. This ischaemia of the myocardium is what results in the symptoms of CAD – angina or a myocardial infarction (see below). Pathological changes Clinical features (typical presentation) Signs and symptoms of a myocardial infarction (MI) vary, but can include: Discomfort in the chest and arms Neck and jaw pain Upper back pain Sweating, nausea or dizziness. Angina is caused by intermittent ischaemia to the myocardium and is usually felt by chest pain with exertion or (if more severe or unstable) at rest. Sometimes there is no pain associated with angina or myocardial infarction – called a “silent MI”. Special tests and investigations For some people the only signs of CAD is breathlessness or fatigue on exertion due to the myocardium not receiving enough oxygen. In order to diagnose the presence of CAD, an exercise stress test is commonly performed. In the test a standardised incrementally increasing treadmill test (for example the Bruce Treadmill Test) is used and the heart electrical conductivity is monitored via ECG for changes that may indicate myocardial ischaemia. The most prominent changes in the ECG with myocardial ischaemia is in the ST segment and T wave, where the ST segment could be elevated or depressed, or the T wave may appear flatter, inverted or increased in amplitude. Other diagnostic tests include echocardiography (ultrasound imaging of the heart) and coronary angiogram (injection of dye into the blood stream followed by ultrasound imaging of the coronary arteries in order to look for stenosis (narrowing) or the coronary arteries. Diagnosis of a myocardial infarction is done via the following: 1) Presence of signs and symptoms indicative of a MI 2) ECG changes – typically looking for ST segment elevation 3) Blood tests – looking for elevated levels of cardiac biomarkers that are released into the blood stream when the myocardium is damaged. The most common biomarker tested for is Troponin. Troponin blood levels rise within several hours of a MI and remain elevated for up to two weeks. If someone has raised troponin levels but a normal ECG this is called a non-ST elevated myocardial infarction (NSTEMI). If someone has raised troponin levels AND ST elevation in their ECG this is called an ST elevated myocardial infarction (STEMI) Medical management (if applicable) Angina is treated medically using glyceryl trinitrate sublingual spray (GTN) – this is a nitric oxide donor. Nitric oxide is a vasodilator and its role in angina is to vasodilate the coronary blood vessels to restore blood supply to the myocardium. GTN is a spray that is squirted under the tongue in order to get fast absorption into the blood stream. The immediate medical management for a myocardial infarction is to restore blood flow to the myocardium as fast as possible. Medications administered may include aspirin (which reduces blood clotting), thrombolytics (to dissolve the clot), antiplatelet agents (to reduce further clotting) and beta blockers (to slow HR and blood pressure to reduce the workload and oxygen requirements of the myocardium). Depending on the severity and number of blockages in the coronary arteries, further treatment may be required. One intervention is coronary angioplasty (where a deflated balloon on the end of a catheter is inserted into the femoral artery and guided up the aorta and into the coronary arteries, the balloon is inflated in order to push the thrombis and plaque back and restore the internal lumen of the blood vessel. Often a mesh cage (stent) is put into the coronary artery in order to maintain the lumen of the artery. Because the only incision is in the groin this is what we call “minimally invasive surgery” and people can recover quite quickly. Clinical course/prognosi s For severe blockages that cannot be treated via angioplasty, open heart surgery called coronary artery bypass graft (CABG) surgery is performed. In this surgery either the saphenous vein in the leg or radial artery in the arm are surgically removed and grafted from the aorta to the coronary artery in order to bypass the blocked section of the blood vessel. This is a very invasive procedure, as the sternum has to be cut in half in order to access the heart and it takes 3 months or longer to physically recover from such an operation. CAD is a progressive condition. Even after angioplasty or CABG surgery, the stents or grafted blood vessels can block over the next 1 – 2 decades. Therefore both pharmacological management (to reduce cholesterol and BP) and lifestyle changes (healthy diet, physical activity and smoking cessation) are required to prevent or slow the progression of CAD. The role of physiotherapy for people with CAD is to support people in making lifestyle changes and guide them with engaging in physical activity and exercise. Cardiac rehabilitation programmes are supervised exercise and education sessions where people exercise under the guidance of a physiotherapist (and often a cardiac nurse). These programmes typically run for 8 – 12 weeks. Comprehensive cardiac rehabilitation programmes include education about medications, diet, physical activity and smoking cessation, as well as behaviour change interventions in order to help support people to make and maintain lifestyle changes. You will learn more about cardiac rehabilitation programmes in year 3. Videos https://www.heartfoundation.org.nz/your-heart/post-heartattack/about-heart-attacks https://www.youtube.com/watch?time_continue=107&v=2z5_BLltXn k Anterior cruciate ligament (ACL) injury Epidemiology (incidence, prevalence) Demographic features (age, sex, ethnicity etc) Risk factors Aetiology (cause) Pathological changes Clinical features (typical presentation) Annual incidence of ACL tears is 81 per 100,000 people aged 10 – 64 years in Europe. A genetic predisposition to ACL injury has been proposed, however there is not enough evidence in the literature to definitively support this. There is some evidence for a higher ACL injury rate in females, and incidence is generally higher in a younger than older population. ACL injuries occur most commonly in sports involving pivoting and sudden deceleration, in particular when performing a cutting manoeuvre or on single-leg landing. The typical ACL injury occurs with the knee externally rotated and in 10 – 30 degrees flexion when the knee is placed in a valgus position as the person pushes off through the planted foot and internally rotates their upper body with the aim of rapidly changing direction. Unfavourable body movements in landing and pivoting where the knee “collapses” of falls medial to the hip and foot has become recognised as a potential cause of ACL injuries. As a result, intervention programme that teach and facilitate safer neuromuscular patterns during manoeuvres such as cutting and jump-landing activities have now been implemented in many sporting codes for example netball and football (soccer). See Brukner and Kahn, Chapter 12 pg 178-181 for an example of such an injury prevention programme (FIFA 11) 5 – 15% of ACL injuries are partial tears, with complete rupture being more common. Typical features of the history include: An audible “pop”, “crack” or feeling of something going out and then going back Most complete ACL tears are extremely painful in the first few minutes after injury. Usually unable to continue their activity at the time of injury, and if they do they often feel instability or a lack of confidence in the knee. Typical examination findings include: Swelling in the first few days can make physical examination difficult and may need to be delayed until swelling and pain are less intense. - Restricted knee movements - - Special tests and investigations Widespread mild tenderness on palpation May have lateral joint tenderness (from impact of tibia and femur at time of injury from the valgus positioning) ACL injuries often occur in conjunction with medial meniscus injuries, in which case there may be medial joint tenderness. The Lachman’s test is the most useful test for ACL injury Pivot Shift test is also diagnostic of ACL deficiency, but requires the patient to have an intact MCL and iliotibial band and be able to extend the knee Anterior draw test – least sensitive for ACL tear diagnosis A knee x-ray to check for avulsion of ACL from the tibia should be performed if an ACL tear is suspected Medical management (if applicable) MRI can be helpful if unsure of diagnosis, however MRI should mainly be used to detect associated meniscal and cartilage injuries The two approaches to ACL rupture management is surgical and conservative (non-surgical). Surgical ACL reconstruction uses either a patellar tendon or semitendinosis & gracilis tendon bundle graft that is fixed onto the original tibial insertion site and in the intercondylar notch of the femur in a position where the graft is maximally taut during knee movement. Post-operative rehabilitation is generally a similar protocol to that of conservative management. The key aims of ACL rehabilitation are: 1) reduction of pain, swelling and inflammation; and 2) regaining ROM, strength and neuromuscular control (including a focus on core stability and proprioceptive and balance exercises). The management of partial ACL tears depends on the degree of instability in the knee. A clinically and functionally stable partial tear can be treated conservatively, where unstable lesions may require surgical treatment, especially in those who wish to return to high-intensity sport. Clinical course/prognosis See Brukner and Kahn, chapter 35, pages 740 – 751 for more information about surgical and conservative management approaches, and a detailed outline for an ACL rehabilitation program. There is a wide variation in time to return to sport following an ACL injury. Reported rates for return to sport in the literature are 65 – 88% within a year, with another study reporting 72% returning to pre-injury activity levels within 2 years. The rate of graft re-rupture after 10 years is approximately 6%, with the highest risk being in the first 12 months after ACL injury. A frequent long term consequence of ACL rupture is increased risk of knee osteoarthritis, with rates approximately 50% at 10 – 20 years post injury. Medial Collateral Ligament Injury (of the knee) Demographic features (age, sex, ethnicity etc) Aetiology (cause) Pathological changes Clinical features (typical presentation) There are no typical demographic features of people who sustain MCL injuries. MCL injuries usually occur as a result of a valgus stress to a partially flexed knee. MCL injuries are classified on the basis of their severity: Grade I – mild, first degree Grade II – moderate partial ruptures, second degree Grade III – complete tear, third degree Grade III MCL injuries are often associated with a torn ACL. The lateral meniscus can also be injured as the valgus strain at the time of injury opens the medial side and compresses the lateral side of the knee joint. Typical features on examination: Grade I: - Local tenderness over MCL but usually no swelling - Pain on valgus strain applied at 30 degrees knee flexion, but no increased laxity (the ligament integrity is intact) Grade II: - Marked tenderness and sometimes localised swelling - Valgus stress applied at 30 degrees knee flexion causes pain and some increased laxity, but a definite end feel (ligament integrity is compromised but intact) Grade III: - Patient complains of feelings of instability in the knee - Amount of pain is variable, and often not as severe as would expect given the severity of the injury - Tenderness over the ligament - Valgus stress at 30 degrees knee flexion reveals gross laxity without a distinct end point/end feel Medical management (if applicable) Surgical management offers no benefit over non-surgical management, thus non-surgical treatment is recommended. See Brukner and Kahn, chapter 35 pg 730-731 for rehabilitation programmes for mild and moderate to severe MCL injuries. Clinical course/prognosis Distal MCL injuries tend to recover more slowly than proximal MCL injuries. Grade I MCL injuries – people can usually return to sport within 4 – 6 weeks. Grade II – III MCL injuries – people can usually return to sport within 10 – 12 weeks. Ankle lateral ligament injury Risk factors Aetiology (cause) Pathological changes These injuries most commonly occur during rapid changes in direction, or walking over uneven surfaces, or landing on another person’s foot when jumping. The usual mechanism of injury for a lateral ankle ligament sprain is inversion and plantarflexion. Damage can occur to the anterior talofibular ligament (ATFL), the calcaneofibular ligament (CFL), the posterior talofibular ligament (PTFL). However isolated ruptures of the CFL and the PTFL are rare. The ATFL is usually damaged first because: 1) the ATFL is taut in plantarflexion whereas the CFL is relatively loose and 2) the ATFL is weaker than the CFL. Complete rupture of the ATFL, CFL and PTFL results in dislocation of the ankle. As for MCL injuries, lateral ankle ligament sprain injuries are graded I, II and III. Clinical features (typical presentation) Patients who have sustained an ankle sprain usually report an audible snap, crack or tear (as opposed to a ‘pop’ which can happen in knee ligament injuries). Depending on the severity of the injury, the athlete may be able to continue playing (eg. grade I/mild sprain) or may have to stop immediately (eg. grade II or III/mod – severe sprain). All three grades are associated with pain and tenderness and varying degrees of swelling, limitations in ROM and varying ability to weight bear. Special tests and investigations Ligament laxity is assessed using the anterior drawer and talar tilt test (see Brukner and Kahn, pg 897 and 898). Note that these manual stress tests are more valid when performed 5-7 days post injury (keep in mind the limitations with ‘special tests’ – see chapter 14 Brukner and Kahn) Grade I – normal ligament laxity (remember to compare sides as there is a large individual variation in normal ankle laxity) Grade II – some laxity but a firm end feel Grade III – gross laxity without a discernible end feel Medical management (if applicable) Note: because ankle fractures can happen via the same injury mechanism it can be difficult to differentiate a fracture from a moderate to severe ankle sprain. According to the Otawa ankle rules, tenderness on palpation at the lower posterior 6cm of the medial or lateral malleolus as well as the inability to weight bear both immediately and at the time of clinical examination indicates the need for an ankle x-ray in order to check for the presence of an ankle fracture. (see Brukner and Kahn, Chapter 41, Fig 41.4, pg 898) Surgical interventions for Grade III injuries offer no benefit over non-surgical rehabilitation. Initial management of lateral ankle ligament injuries follow the POLICE principles: P – protection OL – optimal loading I- ice C- compression E- elevation (see Brukner and Kahn chapter 17, pg 247) Management or all grades of lateral ankle ligament injuries follow the same principles: Weight bearing as tolerated (may need crutches, but aim to at least partial weight bear with a heel-toe gait as soon as possible) Reduction of pain and swelling Restoration of range of motion (active and passive ROM exercises; accessory movilisations of the ankle, subtalar and midtarsal joints should begin early) Muscle strengthening (DF, PF, Inv and Ev as soon as pain allows) Proprioception exercises Functional exercises (eg. jumping, hopping, running) can begin once pain free, has full ROM and adequate strength and proprioception Clinical course/prognosis Return to sport when functional exercises can be performed without pain during or after activity There is an increased risk of reinjury for 6 – 12 months following lateral ankle ligament sprains. Both neuromuscular training and bracing or taping may help prevent ankle injury recurrence. Note that it takes 8 – 10 weeks for intensive neuromuscular training programmes to achieve an effect. 75% of people who sustain an ankle sprain have had a previous ankle injury (often the old injury was not fully rehabilitated). Sprain of the Ulnar Collateral Ligament of the thumb (Skiers Thumb/Gamekeepers thumb) References: Ritting AW, Baldwin PC, Rodner CM. Ulnar Collateral Ligament Injury of the Thumb Metacarpophalangeal Joint. Clin J Sport Med. 2010. 20(2):106-112. Brukner et al. Brukner and Kahn’s Clinical Sports Medicine. 5th edition. McGraw Hill Education. 2017. Pages 499-501. Epidemiology (incidence, prevalence) Aetiology (cause) Pathological changes Estimated to account for 86% of all injuries of the base of the thumb Damage to the ULC can be caused by either chronic repetitive valgus stress of the thumb or an acute hyperabduction trauma, for example skier falling on abducted thumb with ski pole in hand (hence “Skiers Thumb”), or in sports requiring holding a stick. The UCL comprises of a proper collateral ligament (which is taut in flexion) and an accessory collateral ligament (which is taut in extension of the thumb). UCL injuries can be categorised into 3 grades: Grade I: Stretched but intact ligament Grade II: Partial tear of the ligament Grade III: Complete rupture of the ligament. Bony avulsion fractures at the distal attachment of the UCL occur in 20 – 30% of ULC ruptures. Clinical features (typical presentation) A Stener lesion may occur in 64 – 87% of Grade III UCL lesions. This is where the proximal end of the UCL retracts and ends up lying superficial to the adductor pollicis aponeurosis. The interposition of the aponeurosis between the proximal and distal ends of the UCL interferes with healing. The patient usually describes a specific event of hyperextension and radial deviation of the thumb. Swelling and local tenderness at the base of the thumb may be present. They may have difficulty pinching objects between the thumb and index finger due to instability of the first MCP joint. The UCL integrity is evaluated by stress testing of the MCP joint of the thumb, whereby a radial force is applied in neutral (to test the accessory collateral ligament) and 30 degrees of flexion (to test the proper collateral ligament). Laxity of greater than 15 degrees with a soft end feel compared to the Special tests and investigations Medical management (if applicable) Clinical course/prognosis contralateral thumb is an indication of a complete rupture. Laxity of less than 15 degrees indicates an incomplete tear. An x-ray is required to rule out an avulsion fracture. Surgical repair is usually required for complete tears of the UCL, especially when a Stener lesion has occurred. Incomplete tears are splinted for 6 weeks in a thumb spica with the thumb MCP joint placed in slight radial deviation, after which a splint weaning and active ROM exercises are initiated with strengthening exercises being introduced at 8 – 10 weeks post injury. Protective splinting or taping for 2-3 months is recommended on return to play. Post-surgical rehabilitation is similar to management for incomplete tears. Muscle Injuries: Muscle Tears A muscle tear occurs where excessive tensile and/or shear forces within the muscle cause the muscle fibres and the surrounding connective tissue to fail. Historically, the grading of muscle tears has involved a three-tier system; Grade 1 – Mild. No appreciable tissue tearing; no loss of function or strength; only a lowgrade inflammatory response Grade 2 – Moderate. Tissue damage; strength of the musculotendinous unit reduced; some residual function Grade 3 – Severe. Complete tear of musculotendinous unit and complete loss of function More recently, the British Athletics Classification system has been developed: Injuries are graded 0–4 based on MRI features, with Grades 1–4 including an additional suffix ‘a’, ‘b’ or ‘c’ if the injury is ‘myofascial’, ‘musculotendinous’ or ‘intratendinous.’ 0a = focal neuromuscular injury with normal MRI features 0b = generalised muscle soreness (DOMS) with normal MRI features 1 = small injuries (tears) 2 = moderate injuries (tears) 3 = extensive tears 4 = complete tears a = myofascial injury b = within muscle, usually at musculotendinous junction (MTJ) c = extends into tendon Useful resources Brukner & Khan's clinical sports medicine: injuries Peter Brukner; Karim Khan 5th edition. North Ryde, N.S.W. McGraw-Hill Education Australia 2016 (on reserve) Therapeutic Exercise Foundations and Techniques Foundations and Techniques Carolyn Kisner; Lynn Allen Colby 6th ed. Philadelphia: F. A. Davis Company 2012 (on reserve and e-book) Chapter 10 British Journal of Sports Medicine 2014; 48 1335-1335 Published Online First: 20 Aug 2014. doi:10.1136/bjsports-2014-094005 Quadriceps tear Epidemiology (incidence, prevalence) Demographic features (age, sex, ethnicity etc.) Risk factors Aetiology (cause) Pathological changes Clinical features (typical presentation) Special tests and investigations Most prevalent in males Increased susceptibility over aged 40 Quadriceps tendon ruptures have a reported incidence of 1.37/100,000 Most commonly occur in middle aged people who participate in running or jumping activities. Quadriceps tendon ruptures in non-athletes are usually the direct result of a fall or other trauma in individuals with predefined medical comorbidities which cause pathologic tendon degeneration. Age Certain morbidities including obesity; diabetes; rheumatoid arthritis; gout A quadriceps tear typically occurs when there is a heavy load on the leg with the foot planted and the knee partially bent. E.g. landing awkwardly from a jump or when decelerating during sprinting or agility sports, such as hurdling. Tears can also be caused by falls, direct force to the front of the knee, and lacerations (cuts) or by the presence of chronic disease which weakens the tendon. See the Stages of Tissue Healing table 10.1 p.317 Kisner and Colby End-stage renal disease patients on dialysis have the highest association with tendon degeneration resulting in ruptures. As renal function declines, there is a resulting homeostatic imbalance of calcium, phosphorus, vitamin D, and parathyroid hormone. The elevated parathyroid hormone results in increased bone turnover. Over time, this is thought to weaken myotendinous junctions, resulting in increased potential for tendon rupture with minimal tensile stress. Pain Bruising/swelling Tenderness Difficulty walking Inability to actively extend the knee The diagnosis may be confirmed by x-ray or MRI scan. Medical management (if applicable) Clinical course/prognosis Video REST Knee brace/immobiliser Stretching/flexibility exs ROM and strengthening exercises Surgical repair will be necessary for a complete, or large, partial tear Most people are able to return to their previous occupations and activities after recovering from a quadriceps tendon tear. Approximately 50% of people have persisting thigh weakness and soreness at the site of the tear. https://www.youtube.com/watch?v=yoyz5GFd00M Hamstring tear Epidemiology (incidence, prevalence) Demographic features (age, sex, ethnicity etc.) Risk factors Aetiology (cause) Typically occurs during sporting activities; in particular, football, sprinting and hurdling. The reported injury rate varies (due to differing injury definitions and sporting populations); however, the reported prevalence in the various types of football, to which most literature pertains, is 8% to 25%. Re-injury is common, with rates in excess of 30%. More likely to affect those over 25; black athletes are more affected. Poor running mechanics Inadequate warm-up Muscle tightness Muscle imbalance Muscle weakness Inappropriate training loads/muscle fatigue Type of activity Slippery playing surfaces Muscle overload is the main cause of hamstring muscle tear. This can occur when the muscle is stretched beyond its capacity or challenged with a sudden load. Hamstring muscle strains (tears) often occur when the muscle is contracting eccentrically, for example, during sprinting. The hamstring muscles contract eccentrically as the back leg is straightened and the toes are used to push off and move forward. At this point, the hamstring muscles Pathological changes Clinical features (typical presentation) are both lengthened and loaded — with body weight as well as the force required for forward motion. See the Stages of Tissue Healing table 10.1 p.317 Kisner and Colby Sudden sharp pain in the back of the thigh Pain in the back of the thigh/lower buttock on walking, bending over or straightening the leg. Swelling Bruising Tenderness Persistent weakness Hamstring tears are categorised into 3 groups: Grade 1 tear - Mild swelling and spasm Tightness in the back of the thigh but will be able to walk normally. Awareness of some hamstring discomfort and unable to run at full speed. Minimal pain on resisted knee flexion Grade 2 tear - Walking pattern affected with possible limp Twinges of hamstring pain during activity. Possible swelling and tenderness on palpation Pain on resisted knee flexion Grade 3 tear - - Special tests and investigations Medical management (if applicable) Severe pain and muscle weakness May require crutches Immediate swelling post-injury with the appearance of bruising with 24 hours Patient history and physical examination may be sufficient to provide a diagnosis. X-ray or MRI scan may be used to confirm diagnosis and determine location and extent of tear. REST Knee brace/immobiliser Stretching/flexibility exs ROM and strengthening exercises Clinical course/prognosis Video Surgical repair will be necessary for a complete, or large, partial tear Aims of management: Reduce hamstring pain and inflammation. Normalise your muscle ROM and extensibility. Strengthen quads and hamstrings. Strengthen calves, hip and pelvis muscles. Normalise lumbo-pelvic control and stability Normalise neurodynamics to enable sciatic nerve to pass freely without scar adhesions. Improve game speed, proprioception, agility and balance. Improve technique and function e.g. running, sprinting, jumping, hopping and landing. Minimise risk of re-injury. The majority of people will make a full functional recovery following rehabilitation . Recovery times based on the extent of the tear: Grade 1 - 1 to 3 weeks Grade 2 - 4 to 8 weeks Grade 3 - 3 to 6 months. These may also require surgery. https://www.youtube.com/watch?v=CubBXSt_NRw Biceps tear Biceps-related pathologies are a common cause of shoulder pain and loss of function; it can result in work limitations and affect athletic performance. There are three categories of biceps-related shoulder pain: 1) Inflammatory/degenerative conditions and partial tears of long head of biceps 2) Instability of biceps tendon into the bicipital groove 3) Superior labrum anterior to posterior (SLAP) lesions Epidemiology (incidence, prevalence) Demographic features (age, sex, ethnicity etc.) Risk factors Aetiology (cause) The incidence of biceps tendon rupture is around 2.55 per 100,000 patient-years. Most cases are in males (over 95%); likely due to vocational activities. Rupture is most common in adults over 50 but can also occur in younger athletes. Participation in overhead activities such as throwing Poor conditioning Age over 40 Smoking Use of corticosteroids Overuse/recurrent tendonitis History of rotator cuff tear Contralateral biceps tendon rupture Rheumatoid arthritis Single traumatic events, such as a fall onto an outstretched arm Biceps tendon rupture is mainly attributed to a sudden eccentric load on the flexed and supinated forearm, which can result in rupture of the tendon proximal and distal attachments. Most common mechanisms of injury to the superior labrum are throwing injuries or carrying, dropping or caching heavy objects. The late cocking and follow through phases of throwing place the greatest forces on the shoulder. https://orthoinfo.aaos.org/en/diseases--conditions/shoulderinjuries-in-the-throwing-athlete/ Pathological changes See the Stages of Tissue Healing table 10.1 p.317 Kisner and Colby Age, overuse, smoking, and corticosteroid contribute to tendon degeneration and later, tendinopathy. A sudden eccentric load may break tendon structures, mostly involving the bony attachment or tendon-labral junction. Clinical features (typical presentation) In SLAP lesions: Pain localised to posterior or postero-superior joint line, especially in abduction. Pain exacerbated by overhead or behind-the-back motion Tenderness over anterior aspect of shoulder Pain on resisted biceps contraction In proximal biceps tendon rupture: Special tests and investigations Bulbous mass in the upper arm with a visible gap proximal to the mass (Popeye sign) Pain on resisted flexion or supination. Tenderness at the superior margin of the muscle belly. Partial ruptures may present with similar, but more subtle, symptoms. There may be delayed diagnosis due to less significant weakness or obvious deficit on palpation. Special tests: Speed test O’Brien test Passive compression test Biceps load II test (see page 394 Brukner & Khan for more detail) Hook test: https://www.youtube.com/watch?time_continue=4&v=YsqdHsuLgC4 Yergason’s test - positive if pain is reproduced in the bicipital groove during the test Medical management (if applicable) Ultrasound is an inexpensive, non-invasive diagnostic tool. Diagnostic arthroscopy will confirm SLAP lesion. Conservative management of long head of biceps rupture takes 4-6 weeks on average. Non-operative management is appropriate for those who do not require a high level of supination strength, and may also be considered for subacute or chronic tendon tears. Rehabilitation should follow a phased progression of rotator cuff exercises; scapular exercises; and stretching. A progressive loading programme should be introduced from week 2. Arthroscopic repair has excellent outcomes for those not involved in sports. In overhead athletes, surgical results are less predictable with rates of return to previous level of play between 20% and 94%. Clinical course/prognosis Timely diagnosis and successful operation are the keys to correct muscle deformity and to regain strength or forearm supination and flexion. Gastrocnemius tear Calf muscle tears usually occur during acceleration, when extending the knee from a stationary position with the ankle dorsiflexed, or during a forward lunge, such as while playing tennis or squash. There is a small percentage of the population who can tear their calf muscle by just walking. The most common calf muscle torn is the medial gastrocnemius; mid-belly calf muscle tears are most common. The gastrocnemius muscle is more susceptible to injury as it is extends over the knee and ankle. Epidemiology (incidence, prevalence) Demographic features (age, sex, ethnicity etc.) Risk factors Aetiology (cause) Calf muscle tears are relatively common and most often seen in sports which require quick acceleration and changes in direction such as tennis, running, jumping and football. A calf muscle tear is also termed “tennis leg” due to the prevalence amongst tennis players. There are limited studies documenting rates of calf muscle tears; a 5-year study of European soccer players found that 12% of total muscle injuries sustained were injuries to the gastrocnemius. Young athletes are commonly affected; as are those over the age of 40 participating in physically demanding activities. Increasing age and previous calf tear are the biggest predictors of future calf tear. Running on hills Forced push-off activities(jumping) Tennis Injury can be caused sudden bursts of acceleration as well as a sudden eccentric overstretch of the gastrocnemius. During certain sports, the gastrocnemius is subject to high internal forces, plus rapid changes in muscle length and type of contraction. Pathological changes Clinical features (typical presentation) See the Stages of Tissue Healing table 10.1 p.317 Kisner and Colby The typical presentation depends on the extent of the muscle tear. Grade I: Sharp pain in the back of the calf muscle during or after activity Muscle tightness Ability to continue activity, without pain or with mild discomfort Post activity tightness and/or aching Reproduction of pain on unilateral heel raise or hop Grade II: Sharp pain in the back of the calf muscle during activity Unable to continue activity Significant pain with walking following activity Mild to moderate bruising/swelling Pain with active plantarflexion Pain and weakness with resisted plantarflexion Loss of dorsiflexion Reproduction of pain on bilateral heel raise Special tests and investigations Medical management (if applicable) Grade III (complete rupture): Sudden severe calf pain, often at musculotendinous junction A ‘pop’ sound at the time of injury Unable to continue with activity Considerable bruising and swelling within hours of injury Unable to contract calf muscle Palpable defect in medial belly of the muscle and tenderness on palpation Diagnostic ultrasound imaging Magnetic resonance imaging (MRI) Treatment and rehabilitation depends on the severity of the muscle strain. Clinical course/prognosis RICE Regain ROM and flexibility Restore concentric muscle strength Restore eccentric muscle strength Restore speed, power, agility and proprioception Return to sport – dependent on grade of tear: Grade 1 – 10-12 days Grade 2 – 16-21 days Grade 3 – 6 months post-surgery There is a risk of re-injury and, additionally, there may be ongoing pain and limited function in the long term. Tendon injuries Tendonitis, tendinopathy and tendinosis are all tendon overuse injuries. They typically occur in three areas: the musculo-tendinous junction; the mid-tendon (non-insertional tendinopathy); or the tendon insertion (insertional tendinopathy). Non-insertional tendinopathies tend to be caused by a cumulative microtrauma from repetitive overloading e.g. overtraining. The majority of tendon injuries occur near joints, such as the shoulder, elbow, knee, and ankle. The may present as a sudden injury but are often the result of repetitive tendon overloading. Tendonitis is inflammation of the tendon. Tendonitis can become chronic if whatever the cause of the inflammation is not addressed. Mostly, it is temporary and curable with a few weeks’ treatment. Tendinosis is a non-inflammatory degenerative condition that is characterised by collagen degeneration in the tendon due to repetitive overloading. This type of injury does not respond well to anti-inflammatory treatments and is best treated with functional rehabilitation. Early diagnosis and intervention provides the best outcome in terms of recovery. Tendon tear or rupture is unusual in a healthy tendon. Where tear or rupture occurs there is usually an underlying pathology (such as tendinosis), that may be asymptomatic. The two most commonly ruptured tendons are the Achilles tendon and supraspinatus tendon. Useful resources Brukner & Khan's clinical sports medicine: injuries Peter Brukner; Karim Khan 5th edition. North Ryde, N.S.W. McGraw-Hill Education Australia 2016 (on reserve) p.46-51 Therapeutic Exercise Foundations and Techniques Foundations and Techniques Carolyn Kisner; Lynn Allen Colby 6th ed. Philadelphia: F. A. Davis Company 2012 (on reserve and e-book) Epidemiology (incidence, prevalence) Demographic features (age, sex, ethnicity etc) Risk factors Aetiology (cause) Pathological changes Tendon injuries cost ACC more than $280 million a year. Men are more affected than women. Lower limb tendon ruptures occur more frequently in middle-aged and older athletes. Age Overtraining Repetitive activities Exercise/sports Conditions that affect rate of healing/repair process. E.g. diabetes Most tendon overuse injuries result from gradual wear and tear to the tendon from overuse or ageing. Repetitive actions are more likely to damage a tendon. Tendon tissues are predominantly extracellular and have a low metabolic rate. Therefore the vascularity and healing capability of tendons is much lower than other tissues. Tendons have great tensile strength and are designed to withstand high, repetitive loading. However, a rapid increase, or sudden change, in load being applied to the tendon can result in small micro tears, and the cumulative microtrauma appears to exceed the tendon’s capacity to heal and remodel. Clinical features (typical presentation) The damage will progressively become worse, causing pain and dysfunction. In the long run this can result in tendinopathy or tendinosis. Tendon overuse injuries Increasing pain on using the affected tendon (may be pain-free at rest) Pain/stiffness at night or first thing in the morning Ability to ‘run through’ the pain Local tenderness and/or thickening Swelling over the affected area Crepitus when moving the affected tendon Special tests and investigations Medical management (if applicable) Tendon rupture(partial or complete) Partial rupture = sudden onset of pain; localised tenderness; loss of tendon function relative to the size of tear Complete rupture = acute pain which often settles quickly; total loss of tendon function Degree of tendon rupture can be confirmed by ultrasound or MRI scan. Physiotherapy management of tendon overuse injury: PRICE (protection; rest; ice; compression; elevation). Stage 1: Isometric exercise Stage 2: Isotonic exercise Stage 3: Energy storage exercise Stage 4: Sport-specific energy storage and release exercise Physiotherapy management of tendon rupture: Clinical course/prognosis Partial ruptures may be managed conservatively with graded rehabilitation Complete ruptures require surgical repair Depends on the degree of injury and tendon involved (see below) Achilles tendinopathy Useful resources https://www.physio-pedia.com/Achilles_Tendinopathy https://www.physio-pedia.com/Achilles_Tendinopathy_Toolkit Epidemiology (incidence, prevalence) May be insertional (25% of cases) or noninsertional (75% of cases). Insertional Achilles tendinopathy reported in 7-18% of runners and 9% of dancers. Most common amongst those participating in sport or recreational activities. More common in males than females. Mean age affected in 30-50 years. Risk factors include abnormal biomechanics; obesity; poor training technique Exact cause is unknown but it believed to be overuse combined with mechanical overload and patient susceptibility. Pain and tenderness over mid-portion of Achilles tendon (non-insertional) Pain and tenderness at Achilles tendon insertion on calcaneus (insertional) Clinical diagnosis usually established on history and physical examination. This may include the following tests: Demographic features (age, sex, ethnicity etc.) Risk factors Aetiology (cause) Clinical features (typical presentation) Special tests and investigations Achilles Tendon Palpation Test may detect tenderness 2-6 cm above Achilles insertion Royal London Hospital test 1) positon the ankle at maximal dorsiflexion, palpate area and classify as positive or negative for tenderness 2) this may elicit tenderness 3 cm proximal to calcaneus when the ankle is in slight plantar flexion, with tenderness decreasing as ankle is moved into dorsiflexion X-ray, ultrasound or MRI may be used when history and physical examination are inconclusive. Medical management (if applicable) Conservative management in the form of ice and non-steroidal anti-inflammatories (NSAIDs). For non-insertional Achilles tendinopathy, rest and activity modification is advised, with a strong recommendation for an eccentric loading exercise programme. For insertional Achilles tendinopathy, a brief period of immobilisation is recommended. Eccentric loading may not be as effective in this presentation. Clinical course/prognosis Taping or orthoses may also be considered. The majority of patients with Achilles tendinopathy respond well to conservative treatment with 71%-100% returning to previous levels of activity with few or no complaints. Approximately 30% of patients with Achilles tendinopathy who are initially treated conservatively may require surgery in the long-term. 4% of adults diagnosed with Achilles tendinopathy may ultimately sustain an Achilles tendon rupture. Achilles tendon rupture (complete) Useful resources Brukner & Khan's clinical sports medicine: injuries Peter Brukner; Karim Khan 5th edition. North Ryde, N.S.W. McGraw-Hill Education Australia 2016 (on reserve) p.889892 https://www.physio-pedia.com/Achilles_Rupture Epidemiology (incidence, prevalence) Demographic features (age, sex, ethnicity etc.) Risk factors Aetiology (cause) Clinical features (typical presentation) Special tests and investigations Incidence is 5-36 per 100,000. 60-90% of Achilles ruptures occur during sports Typically affects athletes in 30s-40s Males 10 times more affected than females Previous Achille’s rupture Other major tendon rupture Recent local corticosteroid injection Type 2 diabetes Typically occurs when a quick change in direction is performed and the ankle is forced into dorsiflexion while the calf contracts. Sensation of being kicked in the back of the leg Immediate and gross reduction in function Difficulty walking initially Ability to resume walking but with no power in push-off phase Pain may not be the key feature Calf squeeze test (Simmond’s or Thompson’s test) has high specificity and sensitivity for diagnosis. Other tests include Matle’s test; Copeland’s test and palpation test for a gap in the tendon. Medical management (if applicable) The Achilles tendon total rupture score (ATRS) is a patient-reported outcome measure for evaluating outcomes postAchille’s tendon rupture Open surgical repair has a 10% lower risk of re-rupture compared with conservative management. Clinical course/prognosis Video A short period of rigid cast followed by a functional brace post-surgery indicates that early mobilisation reduce re-rupture rates without increased risk of other complications when compared with rigid cast immobilisation. Only 30-40% of athletes return to pre-injury level due to long term deficits in strength and function. Complications that persist include calfmuscle weakness; tendon elongation and gait abnormalities. For more information on Achilles tendon repair: https://www.physiopedia.com/Achilles_tendon_repair Rotator cuff tears Epidemiology (incidence, prevalence) Demographic features (age, sex, ethnicity etc.) Risk factors Aetiology (cause) Pathological changes Rotator cuff injuries may be traumatic, for example as result of sports injury, or degenerative. The incidence of rotator cuff tears is 25% in people over 60; and 50% in people over 80. The cost of rotator cuff repairs in New Zealand in 2015/2016 including surgical and physiotherapy costs was over $32 million. Tears many be partial-thickness (incomplete) or full-thickness (complete). The most commonly torn rotator cuff tendon is the supraspinatus. There is a great incidence of tears in older age groups; the mean age is 58. Rotator cuff tears tend to affect more females than males with 66% occurring in females. Risk factors include age, smoking, and participation in repetitive overhead activities, either recreational or occupational. Cause may be traumatic or degenerative. In the case of degenerative tears, age related factors include reduced tissue vascularity; and the presence of hypocellularity, fascicular thinning and granulation tissue at microscopic level. Clinical features (typical presentation) Special tests and investigations Shoulder pain; in particular, pain localised to the anterolateral aspect. Night pain with inability to sleep on the affected side. Signs and symptoms include supraspinatus weakness, with pain exacerbated when the arm is abducted beyond 90o. There may also be weakness into external rotation and impingement in those over 60. There are a number of diagnostic tests available. The full can test and empty can test (Jobe’s test) both have high specificity and sensitivity for diagnosis of a supraspinatus tear. The lag sign and Hornblower’s sign both have high specificity but low sensitivity for diagnosis of an infraspinatus tear; these are, therefore, of use where the test yields a positive result, indicating a high likelihood of a rotator cuff tear. To view how these tests are carried out: https://www.youtube.com/watch?v=cRWokjKttm8 Medical management (if applicable) Clinical course/prognosis X-rays and MRI scan may be used in assisting with diagnosis. Non-operative management includes: rest and activity modification or 1-2 weeks but avoidance of shoulder immobilisation NSAIDs Exercise therapy to improve pain and increase function Tendon repair may be considered taking account of the following factors: Size of tear Patient characteristics inc. age; occupation; level of activity (e.g. elite athlete); symptom severity Response to prior non-operative treatment Typically, incomplete tears do not heal but symptoms may settle. The risk of tear progression is increased in those who are older, had a larger tear initially and where there was no traumatic mechanism of injury. Re-tear occurs in about 19% of surgically repaired tendons at 6 months. 85% of all athletes return to sport after repair of rotator cuff tears, but only 50% of professional and competitive athletes return to their preinjury level of play after 4-17 months. Lateral elbow tendinopathy Lateral elbow tendinopathy (commonly referred to as tennis elbow) is an acute or chronic tendinopathy of the common extensor origin at the lateral epicondyle of the elbow. The musculotendinous junction of extensor carpi radialis brevis is most commonly affected. It can also be known as: lateral epicondylitis; lateral epicondylosis; lateral epicondylalgia; tendonitis of the common extensor origin; extensor tendinosis at the elbow; peritendinitis of the elbow; or rowing elbow. Useful resources Brukner & Khan's clinical sports medicine: injuries Peter Brukner; Karim Khan 5th edition. North Ryde, N.S.W. McGraw-Hill Education Australia 2016 (on reserve) p. 443450 https://www.physio-pedia.com/Lateral_Epicondylitis https://www.physio-pedia.com/Lateral_Epicondyle_Tendinopathy_(Tennis_Elbow)_Toolkit Epidemiology (incidence, prevalence) It occurs in approximately 1-3% of adults. Demographic features (age, sex, ethnicity etc.) It most commonly occurs in middle age; peak incidence being between 40 and 60 years of age. Occupational or recreational activities involving repetitive movement of the arm. Examples include: Fine, repetitive hand and wrist movements, such as using scissors or typing. Repeatedly bending the elbow, such as playing the violin, cutting with a knife or using a paintbrush. Twisting or gripping movements such as holding a pen or using a screwdriver. Playing racquet sports, such as tennis, badminton or squash. Risk factors Aetiology (cause) Pathological changes Clinical features (typical presentation) Special tests and investigations Throwing sports, such as the javelin or discus. Sudden overuse of upper extremity in previously sedentary persons Overexertion of the common extensor tendon at the lateral epicondyle of the elbow, often due to repetitive wrist extension and supination In chronic lateral elbow tendinopathy, the persistent cycle of repetitive or excessive tendon loading leads to tissue microtrauma and degenerative changes in the origin of the common extensor tendon. Histologic observations of the degenerative tendon demonstrate non-inflammatory, angio-fibroblastic hyperplasia; formation of new blood vessels; and collagen scaffold disruption by fibroblasts and vascular granulation tissue. Pain, which is often sharp, in the lateral aspect of the elbow. Onset is usually insidious Pain with active extension of the wrist or supination of the forearm Difficulty or discomfort when lifting or holding objects Tenderness at lateral epicondyle Weakened hand grip on affected side Diagnosis is usually based on history and physical findings, including: insidious onset of pain over lateral aspect of elbow that may impair functional tasks Pain on resisted wrist or third finger extension with extended elbow and forearm pronated Pain on passive wrist flexion with the elbow extended Tenderness at or near lateral epicondyle (maximum tenderness usually observed just anterior and distal to lateral epicondyle) Medical management (if applicable) A combination of treatments is usually most effective. Clinical course/prognosis Imaging is usually not required to make a diagnosis. It may be considered to rule out alternative diagnoses. The extent of tendon pathology on MRI does not appear to correlate with patient-reported symptom severity or functional impairment in adults with lateral epicondylitis. Rest and activity modification as first-line management. Electrotherapeutic modalities (e.g. ultrasound; TENS) Graduated exercise to improve strength and endurance +/- stretching Elbow mobilisation with movement (MWM) Acupuncture Taping Graduated return to activity Approximately 70%-95% of patients will have resolution of symptoms within 12 months with conservative treatment. De Quervain’s tenosynovitis Useful resources: Brukner & Khan's clinical sports medicine: injuries Peter Brukner; Karim Khan 5th edition. North Ryde, N.S.W. McGraw-Hill Education Australia 2016 (on reserve) p.476477 https://www.healthinfo.org.nz/index.htm?living-with-de-quervains-tenosynovitis.html Epidemiology (incidence, prevalence) Demographic features (age, sex, ethnicity etc) Risk factors Aetiology (cause) Pathological changes Clinical features (typical presentation) This is a common wrist tendon entrapment syndrome in which gliding of the abductor pollicis longus and the extensor pollicis brevis tendons is restricted within the first dorsal compartment. The estimated prevalence is 1.3% of females and 0.5% of males. It affects women more than men with middle aged women most commonly affected. Risk factors include: female aged over 40 occupational or recreational activities involving repetitive radioulnar deviation, such as golf and racquet sports a previous wrist injury inflammatory arthritis pregnancy the post-partum period lifting up a baby o The cause is unknown but factors that may contribute include chronic trauma to the first dorsal compartment tendons; anatomical abnormalities; increased frictional forces; biomechanical compression; scarring; and increased fluid volume (such as during pregnancy). There is deposition of dense fibrous tissue with thickening of tendon sheaths (up to 5 times that of normal thickness) and increased vascularity of tendon sheaths. Pain centralised over radial aspect of wrist; may radiate into forearm and thumb Swelling just proximal to radial styloid Tenderness on palpation over first dorsal compartment Impaired function of the affected hand Special tests and investigations Aggravating factors include gripping; wringing; twisting; lifting Generally relieved by rest and immobilisation History and physical examination assist with diagnosis. Tests to assist include in diagnosis: Eichhoff test. https://www.youtube.com/watch?v=l_9Suv0xhmY Medical management (if applicable) Clinical course/prognosis Finkelstein test. https://www.youtube.com/watch?v=8WBVXBx34W0 Imaging is not routine but may be used if additional pathology is suspected or to assist with differential diagnosis if there is clinical uncertainty. Physiotherapy treatment includes: Splinting including night splints NSAIDs Corticosteroid injection Localised electrotherapeutic modalities Stretching Graduated strengthening Use of pen build up/golf grip to reduce stretch on extensor tendons Avoidance of aggravating activities/activity modification during recovery phase The majority of people experience complete resolution of symptoms within a few months with corticosteroid injection effective in settling symptoms in 70 to 80% of cases. Osteoarthritis See the attached document for an overview of OA and chapter 30 of Magee: clinical conditions 255\Osteoarthritis.pdf