The Shoulder Flashcards
Scapulothoracic superior glide improves:
Elevation and lateral rotation
Four joints involved in the shoulder complex.
Glenohumeral
Scapulothoracic
Acromioclavicular
Sternoclavicular
Scapulothoracic inferior glide improves
Depression and medial rotation
Scapulothoracic medial glide improves
Retraction
Depression
Medial rotation
Scapulothoracic lateral glide improves
Protraction
Elevation
Lateral rotation
Classification of the Glenohumeral joint.
Structural: synarthrotic
Functional: diarthrotic
Subtype: ball & socket
Axis of rotation: multiaxial
Range of Motion for Glenohumeral joint
Flexion. 180 Extension. 45 Abduction. 180 Adduction. 45 Medial rotation. 70 Lateral rotation. 90 Horizontal adduction: 45 Horizontal abduction: 100
Articular surfaces of the GH joint
Scapula (glenoid fossa) CONCAVE
Humerus (humeral head) CONVEX
Glenoid labrum
Narrow rim of fibrocartilage that improves the fit in the GH joint.
GH capsule
Strength: weak
Thin and lax, allows wide range of movement. Pleated. When should adducted the folds can adhere to one another.
Ligaments of the GH joint
GH ligaments
Coracohumeral ligaments
Transverse humeral ligament
Glenohumeral ligaments
Three weak bands of fibrous tissue that strengthen front of the capsule.
Superior, middle and inferior
Coracohumeral ligament
Accessory ligament. Strengthens capsule above GH joint
Coracoid process –> greater tuberosity of humerus.
Transverse humeral ligament
Bridges gap between two tuberosities
Bursae of the GH joint
Subscapular
Subdeltoid
Subacromial
Subcoracoid
Innervation of the GH joint
Suprascapular
Axillary
Lateral pectoral
Arteries of the GH joint
Branches of axillary and subclavian
What is the most common dislocation of the GH joint?
Anterior
GH joint: resting position
55-70 degrees abduction
30 degrees horizontal adduction
Neutral rotation
GH joint: closed pack position
Max abduction and external rotation
GH joint capsular pattern of restriction
External rotation more restricted than Abduction which is more restricted than Internal rotation
Inferior glide of the GH joint improves?
Abduction
Posterior glide of the GH joint improves
Flexion, internal rotation, horizontal adduction
Anterior glide of the GH joint improves
External rotation, extension, horizontal abduction
GH Flexion is helped by what mobilization?
Before 90°: posterior glide
After 90°: inferior glide