Peripheral Joint Mobilization • Mobilization - is a passive movement performed slowly by the athletic trainer/therapist, it is controlled enough that the patient can stop the movement any time – Goal is to provide a safe and effective means for restoring normal joint play and/or decreasing pain • Manipulation - involves a sudden, short amplitude, high velocity movement the patient cannot prevent - not in ATC’s realm Mobilization - Indications and Goals • Indications – Capsular pattern - pattern of motion loss – Pain - small amplitude oscillations to treat – Muscle spasm/guarding - gentle oscillations and sustained stretch to maintain joint play – Joint hypomobility/stiffness - oscillatory forces used to stretch joint capsule • Goals – Gentle joint play techniques stimulate both mechanical and neurophysiological effects Examples of Capsular Patterns • When a capsular pattern is present, full joint ROM will not be attained until you address capsular tightness – Glenohumeral • lateral rotation > abduction; abduction > flexion – Hip • medial rotation, abduction, & flexion > extension – Knee • flexion > extension – Ankle • PF > DF; INV > EV > means motion is more limited Mobilization • Mechanical effects – increased nutrition to the avascular portions of the articular cartilage – physically stretching the capsule which maintains the potential for normal ROM • Neurophysiological effects – stimulate mechanoreceptors that inhibit transmission of nociceptive stimuli – gate control – Golgi tendon organ – autogenic inhibition Mobilization • CONTRAINDICATIONS – – – – Hypermobility Joint effusion Acute inflammation Fractures/Osteoporosis • LIMITATIONS – techniques cannot change a disease process • Be careful with unexplained pain syndromes – therapist/athletic trainer skill will affect the outcome Basic Concepts of Joint Motion • Physiological movements - Osteokinematics – the patient can perform these voluntarily – “traditional” movements such as flexion, extension, abduction, rotation • Accessory movements - Arthrokinematics – joint play and accessory motion – necessary for and accompanying normal ROM, but cannot be performed by the patient - examples are slide, roll, spin, distraction, compression Basic Concepts of Joint Motion • Type of motion is influenced by the shapes of the joint surfaces – Ovoid - one surface is convex the other concave – most common – Sellar (saddle) - one surface is concave in one direction and convex in the other, being opposite of the other joint surface Arthrokinematics – Roll • Incongruent surfaces – new pts to new pts • Rolling occurs in the same direction as physiological movement – Slide (Glide) • Congruent surfaces – one pt to new point • Concave-Convex Rule – Spin • Bone rotates around a stationary axis RULE OF CONCAVE-CONVEX • The shape of the joint surface influences the direction of the accessory movement – If surface of moving bone is convex, sliding is in the opposite direction of the bone’s physiological movement – If the surface of the moving bone is concave, sliding is in the same direction as the physiological movement of the bone RULE OF CONCAVE-CONVEX INDICATIONS FOR JOINT MOBILIZATION • 1- Pain, Muscle Guarding, and Spasm can be treated with gentle joint-play techniques to stimulate; • Neurophysiological Effects • Small-amplitude oscillatory and distraction movements stimulate mechanoreceptors inhibt transmission of nociceptive stimuli at the spinal cord • Mechanical Effects • Small-amplitude distraction or gliding movement produce synovial fluid motion, for bringing nutrients to the avascular portions of the articular cartilage to prevent degeneration of the joint surfaces 2- Reversible Joint Hypomobility 3- Positional Faults/Subluxations 4-Functional Immobility LIMITATIONS OF JOINT MOBILIZATION TECHNIQUES • Mobilization techniques cannot change the disease process(rheumatoid arthritis or the inflammatory. In these cases, treatment is directed toward minimizing pain, maintaining available joint play, CONTRAINDICATIONS AND PRECAUTIONS • Hypermobility • Joint effusion • Inflammation 10 simple steps 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Evaluation and Assessment Determine grades and dosage Patient position Joint position Stabilization Treatment force Direction of movement Speed and rhythm Initiation of treatment Reassessment Grades of Oscillations (Maitland) • Grade I - small amplitude movement at the beginning of the range (pain and spasm) • Grade II - large amplitude movement within the midrange of the movement (pain and spasm) • Grade III - large amplitude movement at the end of the range (into restriction) • Grade IV - small amplitude movement at end range when tissue resistance (not pain) is limiting • Grade V - small amplitude, quick thrust manipulation at end range- only w/ training! Normal motion Grades of Oscillations (Maitland) Mobilization • If there is pain before tissue limitation, use gentle techniques for decreasing pain and no stretching – Grades I and II • If pain is concurrent with tissue limitation, treat cautiously with gentle techniques, then gradually increase movement without exacerbating pain – Grade I and II • If pain is experienced after tissue limitation, a stiff articulation can be aggressively mobilized with joint play techniques – Grades III and IV Recommendations for using the Grades • Pain and spasm – I and II • Tissue resistance – III and IV • Treatment amplitude – Low - I, IV – High - II, III • Treatment speed – Fast – I, IV – Slow – II, III • Gentle techniques – I, II • Treatment force – Low – I, II – High – III, IV Procedures for Application of Joint Mobilization Techniques • Position patient in a relaxed, distracted, supported position so the joint capsule is lax (loose(open)-packed position). Closepacked position is one in which there is maximal contact of the articulating surfaces. – Stabilize proximal bone – Position joint in open (loose packed) position – Apply treatment force close to the joint line as possible (decrease lever) • Use treatment plane Open Pack Positions • Knee – 20-25o flexion • Ankle – 10o plantar flexion, mid range eversion/inversion • Hip – 30o flexion, 30o abduction • Wrist - Neutral • Elbow – Humeroulnar/Radioulnar - 70o flexion (supination varies) – Humeroradial – Full extension and supination • Shoulder – 55o flexion, 20-30o horiz. abduction Treatment Plane •Traction apply perpendicular •Gliding apply parallel Technique •2-3 oscillations per second •Pain – 1 to 2 mins. •Tightness – 20 to 60s