Term
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Definition
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Term
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Definition
| Acromion process (scapula) and clavicle |
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Term
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Definition
| Glenoid Fossa (scapula) and humeral head |
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Term
| Scapulothoracic Articular |
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Definition
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Term
| Purpose of Acromioclavicular Ligament |
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Definition
| prevents clavicle from riding up |
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Term
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Definition
| Trapezoid - restricts lateral movement, conoid - restricts superior movement (jointly limit rotation of scapula) |
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Term
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Definition
| ball and socket joint, head of humerous articulates with glenoid fossa, movements- flexion/extension, abduction/adduction, IR/ER, horizontal flexion/extension, circumduction |
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Term
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Definition
Superior- External rotation
Middle - External rotation & abduction
Inferior - External/internal rotation, abduction, inferior displacement |
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Term
| Motions of Shoulder Complex |
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Definition
| flexion & extension, abduction & adduction, external rotation & internal rotation |
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Term
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Definition
| combination of glenohumeral motion and scapulothoracic motioin (function together to achieve max arc of motion), reported as 2:1 (GH:scapular rotation) |
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Term
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Definition
| derived from posterior cord, provides innervation to: triceps brachii, anconeous, brachioradialis, forearm extensors |
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Term
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Definition
| derived from medial and lateral cord, provides innervation to: muscles of anterior forearm, muscles of the hand and thumb |
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Term
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Definition
| derived from medial and lateral cord, provides innervation intrinsic muscles of hand, flexors of hand |
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Term
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Definition
| splits into radial and ulnar artery, palpable in the antecubital fossa |
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Term
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Definition
| glenohumeral joint, AC joint (between 60-120 and 170-180 degrees) |
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Term
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Definition
| land on acromion or fall on outstretched arm (direct blow), point tenderness, deformity, crepitus, anterior, superior or posterior dislocation, dysphagia (medical emergency) |
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Term
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Definition
collision sports "separated shoulder", fall on outstretched arm, direct blow
Grade 1-AC ligament, Grade 2-AC ligament, damage to Coracoclavicular, Grade 3- AC and Coracoclavicular, step-off deformity |
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Term
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Definition
| "separated shoulder", step-off deformity, can affect both AC joint and coracoclavicular ligaments |
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Term
| Pre-Disposing Factors to Glenohumeral Instability |
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Definition
| bony stability, flat glenoid fossa, thin capsular space |
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Term
| Passive Stabilizers of GH Joint |
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Definition
| Ligaments, capsule, coracohumeral ligaments |
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Term
| Active Stabilizers of the GH joint |
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Definition
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Term
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Definition
| excessive external rotation and abduction, middle GH ligament, resultant f rom dmirect blow |
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Term
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Definition
| rare, resultant from flexion and internal rotation along with longitudinal force (blocking in football), weakness in subscapularis muscle |
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Term
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Definition
| loss of control of small arthrokinematic joint movements that occur when patient tries to stabilize the joint during movement |
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Term
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Definition
| Excessive or gross physical movement in a joint where patient becomes apprehensive at end of ROM (subluxation or dislocation is imminent) |
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Term
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Definition
| Either an inability to control ROM consciously or unconsciously |
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Term
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Definition
| special caution to blood and nerve supply (axillary nerve palsy), 90% recurrence, fall on outstretch arm or direct blow |
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Term
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Definition
| Detachment of labrum from Glenoid Fossa |
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Term
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Definition
| tear resultant from dislocation or anterior instability (posterior aspect of humeral head) |
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Term
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Definition
| inferior GH ligament avulsed from labrum, crepitis as humeral head moves against anterior labrum |
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Term
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Definition
| superior labrum anteroposterior lesion - small articular defect on humeral head (due to impact of humeral head and glenoid fossa when trying to relocate), falling on outstretched arm, excessive forceful biceps contraction |
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Term
| Factors that Pre-Dispose Rotator Cuff Pathology |
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Definition
| Tensile failure of the RC, poor scapular mechanics, posterior capsule contraction |
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Term
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Definition
| resultant from decreased space coracoacromial arch, normal IR strength is 30% of ER strength in dominant arm |
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Term
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Definition
| gradual, pain following activity, poor vascularization, supraspinatous (stabilizer) most succeptible, painful arc syndrome |
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Term
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Definition
| compression of structures under coracoacromial arch (including supraspinatus, subacromial bursa, long head of biceps), chronic irritation and inflammation, repetitive forces |
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Term
| Most Common Cause of Impingement |
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Definition
| Anatomical variation in coracoarcomial arch |
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Term
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Definition
| resultant from chronic impingement, rotator cuff tears, acute inflammation, pain in subacromial space |
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Term
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Definition
| pain over bicipital groove or tendon, resultant from rotator cuff, dysfunction, overuse, impingement, more to do with dysfunction than function of GH joint |
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Term
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Definition
| comprise of the brachial plexus or associated neurovascular bundle (Erb's Point), resultant from pressure on brachial plexus, subclavian artery/vein, pressure from ribs or clavicle, muscle tightness |
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Term
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Definition
| adhesive capsulitis, thickened joint capsule, little synovial fluid, produces stiffness, restore motion, agressive mobilizations and stretching |
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Term
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Definition
| compression to one side of neck, stretching of the other, no return to play |
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Term
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Definition
| direct blow to upper arm, deltoid tuberosity (getting stiff armed) |
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