joints of upper extremities Flashcards
GH range of motion (Osteokinematic motions)
Flexion 180 Extension 45 Abduction: 180 Adduction 45 Medial Rotation 70 Lateral rotation 90 Horizontal adduction 45 Horizontal abduction 100
Glenohumeral joint classification
Structure: synovial
Subtype: ball and socket
Axis of rotation: multiaxial
Function diathrotic
Articular surfaces of GH
Scapula: glenoid fossa (concave) - glenoid labrum
Humerus: Humeral head (convex)
Capsular strength: weak
Ligaments of GH
Glenohumeral ligament
Coracohueral ligament
Transverse humeral ligament
Bursae of GH
Subscapular
Subdeltoid
Subacromial
Subcoracoid
Resting position of GH
55-70 abduction, 30 horizontal adduction, neutral rotation
Closed pack position of GH
Full elevation - maximum combined abduction and ext rotation
Capsular pattern of restriction of GH
Ext. Rotation > abduction >internal rotation
Joint mob of GH
Traction/distraction
Lateral distraction
Inferior glide - increase abduction,
Posterior glide - increase flexion (medial rotation, horizontal adduction)
Anterior glide - increase external rotation (extension, horizontal abduction)
Humeroulnar/humeroradial joints classification
Structure: synovial
Subtype: hinge
Axis of rotation: uniaxial
Function: diarthrotic
Range of motion of Humeroulnar/humeroradial
Flexion: 135
Extension: up to 5 (most functional activities occur between 30-130 of elbow flexion, 50 pronation, 50 supination)
Resting and closed pack position and capsular pattern of restriction of Humeroulnar
Resting: 70 flextion, 10 supination
Closed pack full extension and supination
Capsular pattern: flex > extension
Resting, closed pack position and capsular pattern for Humeroradial jt
Resting: Full extension and supination
Closed pack: 90 flexion, 5 supination
Capsular pattern: flex> extension
Articular surface of Humeroulnar and Humeroradius jt
Humerus: capitulum (radius) and Trochlea (ulnar) (both convex)
Radius: articular surface of the head (concave)
Ulna: Trochlear notch (concave)
Ligaments and bursa of Humeroulnar and humeroradial joint
Radial collateral ligament
Ulnar collateral ligament
Olecranon bursa
Weak due to excessive spread of capsule
joint mobs of Humeroulnar
Traction/distraction - increase flex/ext
Medial glide and medial gap- treating medial epicondylalgia, (elbow flexion)
Lateral glide and lateral gap - treating lateral epicondylalgia
joint mob of Humeroradial
Distraction (correcting a humeroradial joint compression positional fault) Compression Posterior glide (increasing ROM into elbow joint extension) Anterior glide (increasing ROM into elbow joint flexion)
Roximal radioulnar joint classification
Structure: synovial
Subtype: pivot
Axis: uniaxial
Function: diarthrotic