PTA 130 - Fundamentals of Treatment I Elbow & Forearm Anatomy Review - Muscles Primary muscles involved in the following movements: o Elbow flexion Brachialis, Biceps Brachii, Brachioradialis o Elbow extension Triceps brachii, Anconeus o Forearm pronation Pronator teres, Pronator quadratus o Forearm supination Supinator, Biceps Brachii, Brachioradialis Anatomy Review – Bones The elbow joint is made up of: o Distal end of the humerus o Ulna o Radius Four joints involved in elbow and forearm function: o Humeroulnar o Humeroradial o Proximal radioulnar o Distal radioulnar Anatomy Review - Ligaments The elbow joint has a lax joint capsule The elbow joint is supported by two major ligaments o Medial (ulnar) collateral Provides support against valgus stresses o Lateral (radial) collateral Provides support against varus forces Elbow and Forearm Characteristics Function is to position the hand Most muscles crossing the elbow are two-joint muscles o Examples? Biceps and triceps co-contract to provide weight-bearing stability to elbow Elbow instability occurs primarily due to tears of the medial collateral ligament Relationship of Wrist and Hand Muscles to the Elbow The epicondyles of the humerus are attachment points for many of the muscles that act on the wrist and hand The muscles provide stability at the elbow, but don’t contribute to motion at the elbow Wrist Flexor Muscles o Originate on the medial epicondyle Wrist Extensor Muscles o Originate on the lateral epidondyle Kinematic Considerations The elbow and forearm create coupled and patterned movement o Elbow flexion with forearm supination Biceps brachii and supinator Lift and carry functions o Elbow extension with forearm pronation Triceps brachii and pronator teres Push out and push down Kinetic Considerations The elbow is inherently stabile to support lifting and carrying ability o When the elbow becomes injured, it is one of the most difficult joints to restore full ROM o When overloaded, the joint inflames and will dramatically decrease ability to handle force Forces at the Elbow Lifting weights with elbow extended: o more stress anteriorly Lifting weights with elbow flexed: o more stress posteriorly Reducing Joint Forces Lighter weights or cuffs attached to mid-forearm Greatest compression forces in push-up position o Widening hand position decreases force Low-resistance, high-rep exercises are most appropriate early in rehabilitation program Referred Pain and Nerve Injury C5, C6, T1 and T2 nerve roots cross the elbowo Symptoms are not usually isolated in the elbow Nerve Disorders o Ulnar nerve Compression at the cubital tunnel o Radial nerve Entrapment of the deep branch under extensor carpi radialis brevis, or with radial head fracture o Median nerve Entrapment between the ulnar and humeral heads of the pronator teres muscle Elbow Joint Hypomobility Typically caused by: o Rheumatoid arthritis and/or Juvenile Rheumatoid Arthritis o Degenerative Joint Disease o Trauma o Dislocation o Fractures o Immobilization Joint Hypomobility: Common Impairments Acute Stage o Joint effusion o Muscle guarding o Pain Subacute and Chronic Stages o Capsular pattern is typically present Elbow flexion is more restricted than extension o Decreased joint play Common Functional Limitations Difficulty turning a key, doorknob, or jar lids Pain or difficulty with pushing and/or pulling activities Difficulty performing ADL’s Limited reach Inability to carry objects with an extended arm Difficulty pushing self up from a chair Joint Hypomobility: Nonoperative Management Protection phase o Patient education o Reduce effects of inflammation o Maintain soft tissue and joint mobility o Maintain integrity and function of related areas Controlled motion phase o Increase soft tissue and joint mobility o Improve joint tracking of the elbow o Improve muscle performance and functional abilities Joint Hypomobility: Nonoperative Management Return to function phase o Improve muscle performance Activities should replicate the demands of ADL’s Modification of activities to reduce stress on joint o Restore functional mobility of joints and soft tissues Joint mobilizations Aggressive stretching techniques Joint Surgery and Postoperative Management Surgical intervention is often necessary for management of severe fractures or dislocations In adults, the most common fracture in the elbow region is a fracture of the head and neck of the radius o Typically occurs when falling onto an outstretched hand Long standing arthritis may also need to be managed through surgery The goals of surgery are: o Relief of pain o Restoration of bony alignment and joint stability o Sufficient strength and ROM to allow for functional mobility Joint Surgery and Postoperative Management Surgical Options for Displaced Fractures of the Radial Head o ORIF o Arthroscopic Reduction and Internal Fixation o Excision of the radial head Joint Surgery and Postoperative Management – Excision of Radial Head Maximum Protection Phase o Immobilization o Pain Control o Edema Control o AROM exercises for shoulder, wrist, and hand o PROM and/or AAROM exercises for the elbow when permitted AROM exercises are allowed within a week after exercises are initiated o Submaximal isometrics when permitted Joint Surgery and Postoperative Management –Excision of Radial Head Moderate and Minimum Protection Phases o Begins when wound has healed and AROM of the elbow is relatively pain free o Increase ROM Gentle stretching Mobilizations once the joint capsule is well healed (typically 6 weeks postoperatively) o Improve functional strength and muscular endurance Low-load resistance exercises with high repetitions Use of affected UE for light ADL’s Joint Surgery and Postoperative Management - TEA Indications for Total Elbow Arthroplasty o Severe joint pain o Articular destruction of the humeroulnar and humeroradial joints o RA is one of the most common pathologies leading to a TEA o Significant instability of the elbow joint o Failed radial head resection Joint Surgery and Postoperative Management - TEA Maximum Protection Phase (0-4 weeks) o Immobilization – position varies o Control of pain, inflammation, and edema o Early AAROM exercises o Maintain mobility of the shoulder, wrist, and hand o Regain motion of the elbow and forearm o Minimize atrophy of UE musculature Joint Surgery and Postoperative Management - TEA Moderate and Minimum Protection Phase o Improve elbow ROM Low-intensity manual self-stretching o Regain strength and endurance of elbow musculature Isometrics Light ADL’s UBE Open-chain resistance exercises o Use operated arm for gradually demanding functional activities Myositis Ossificans Also known as heterotopic or ectopic bone formationo The formation of bone in atypical locations of the body Etiology of symptoms o Most often develops in the brachialis muscle or joint capsule o Caused by trauma, radial head fracture, etc Management o Active, pain-free ROM o Massage, passive stretching, and resistive exercise are CONTRAINDICATED Overuse Syndromes - Epicondylitis Lateral epicondylitis- Tennis Elbow o Pain in the common wrist extensor tendons o What activities are typically associated with this diagnosis? Medial epicondylitis- Golfer’s Elbow o Pain in the common wrist flexor tendons o What activities are typically associated with this diagnosis? Overuse Syndromes - Epicondylitis Treatment- Protection Phase o Avoid provoking activities o Immobilization- rest the muscle o Relieve pain, swelling, and scar tissue adhesions o Modalities o Cross-friction massage o Brace/Splint o o Low-intensity isometrics Active ROM and resistive exercise of shoulder/scapular muscles Overuse Syndromes - Epicondylitis Treatment - Controlled Motion and Return to Function Phases o Increase muscle flexibility Manual stretching Self-stretching o Restore joint tracking of the RU Joint o Cross-friction massage o Improve muscle performance and function Isometrics, dynamic exercises, functional patterns, etc. o Patient education Activity modification Little League Elbow Caused by excessive traction forces on medial epicondyle epiphyseal plate during acceleration Curve and breaking pitches create the greatest forces Treatment o Rest, ice, active exercises to tolerance o No heavy weights o Avoid valgus stresses early in rehab o Avoid aggressive exercises Sprains Hyperextension spraino Anterior capsule injury; can cause bone bruise in olecranon region Medial collateral ligament spraino Injures the primary stabilizing unit of elbow Treatmento Cross-friction massage to adhesions is contraindicated during initial 7-10 days after injury o Immobilization o Pain-free ROM Elbow Dislocation Most dislocations are posterior and follow sudden hyperextension and abduction Injury is obvious due to deformity Treatment o Splint is worn for 2 weeks with motion beginning after first week o Initiate isometrics during first week o Rehabilitation may take 16-26 weeks Elbow Arthroscopy Usually performed for debridement Treatment o Sling is worn for 1-3 days o Rehabilitation may take 8 weeks o May initiate shoulder, wrist range-of-motion exercises, isometrics early o Begin with straight plane, progress to diagonal plane o Progression depends on patient response Elbow Bursitis (Olecranon Bursitis) Inflammation of the olecranon bursa May follow a traumatic incident Treatment: o Stretches o ROM o Ice massage o Modalities Nursemaid's Elbow (“Pulled” Elbow Syndrome) A partial dislocation of the elbow joint – o Involves the head of radius slipping out from the annular ligament Common condition in children under the age of five May occur when a child is pulled too hard by the hand or wrist EXERCISE INTERVENTIONS FOR THE ELBOW AND FOREARM Exercises for Flexibility and ROM Manual, mechanical, and self-stretching techniques o To increase elbow extension o To increase elbow flexion o To increase forearm pronation and supination Self-stretching techniques—muscles of the medial and lateral epicondyles o To stretch the wrist extensor muscles o To stretch the wrist flexor muscles Exercises to Develop & Improve Muscle Performance & Functional Control Isometric exercises o Elbow flexion, elbow extension, and forearm pronation/supination o Rhythmic stabilization Dynamic strengthening and endurance exercises o Elbow flexion, elbow extension, pronation, and supination o Wrist flexion and extension Functional exercises o PNF patterns o Pulling, lifting, and carrying activities o Simulated tasks and activities Strengthening Exercises Progression o Isometrics o Isotonic Straight plane Multi-plane o Plyometrics o Functional exercises o Activity specific exercises Functional and Sport Specific Activities Warm up and cool down Begin with low level and progress to overhead exercises o Use easy activities at diminished distances, forces, and speeds o Gradually increase one component at a time If pain occurs, return to previous level of exercises