EXSS 288 exam 4 Questions & Answers 100% Correct!

shoulder injury background - ANSWERS-most common complaint 2nd to knee -most common in adults - subacromial impingement syndrome, rotator cuff problems -athletic- 8-13% of all athletic injuries, primarily overhead athletes bones of the shoulder - ANSWERShumerus, scapula, clavicle, sternum shoulder joints - ANSWERSsternoclavicular (SC), acromioclavicular (AC), glenohumeral joint, *[scapulothoracic articulation-not a true "joint"] sternoclavicular joint (SC) - ANSWERS-almost no motion, -absorb & attinuate force- prevent superior displacement of the disk, -only direct spot of connection from arm to axial skeleton Acromioclavicular joint (AC) - ANSWERS-3 main ligaments AC, CC, CA (it attaches on the same bone) Glenohumeral joint - ANSWERSball & socket -most mobile joint, least stable -shallow joint cavity -passive stability from all ligaments attached -muscular support (rotator cuff) glenoid labrum - ANSWERSfibrous rim deepens genoid fossa -increase depth 50% -increase total surface contact area controls GH translation scapulothoracic articulation - ANSWERS*not a true joint* scapula on posterior side, thorax sitting on -scapulohumeral rhythm 2:1 ratio amount of motion at GH to 180 degreees GH 120: 60 Scapula motions at the shoulder - ANSWERSflexion, extension, abduction, adduction, medial rotation, lateral rotation, circumduction, horizontal abduction, horizontal adduction scapular motions - ANSWERSelevation (shrug shoulders), depression (come back down), adduction (retraction), abduction (protaction), upward rotation (acromion presses up), downward rotation clavicular fracture - ANSWERSacute/traumatic- MOI- FOOSH, fall on tip of shoulder, direct impact- s/s- support arm head tilt injured side chin away, clavicle lower/higher, palpation reveals pain swelling deformity and point tenderness- manage- sling& swathe immediately or butterfly brace, refer for X-ray, closed reduction immobilize 6-8 weeks, may requi