Shoulder

Question 1

Diagnostic Cluster for Full thickness rotator cuff tear

Answer 1

Park 2005:
Drop arm test
Infraspinatus muscle test 
Painful arc
(All three present)

Litaker 2000:
>65 yo
ER weakness
night pain

Question 2

Diagnostic cluster for impingement syndrome

Answer 2

Hawkins Kennedy
Infraspinatus muscle test
Painful arc

Question 3

Bankart lesion

Answer 3

Injury to anterior inferior labrum during a shoulder dislocation

Question 4

Which other pathology is most commonly seen a long with a slap lesion?

Answer 4

Partial thickness supraspinatus tear (30-45%)

Question 5

EMG activity with external rotation strengthening exercises

Answer 5

Side lying ER: Most infraspinatus and teres minor activity

As shoulder moves into abduction, activity of infraspinatus/ teres minor decreases and activity of supraspinatus/ deltoid increases

Question 6

Typical ER/IR strength ratio in healthy people

Answer 6

66%

Question 7

Goal ER/IR strength ratio in rehab

Answer 7

75%

Question 8

Functional Ratio if ER/IR strength

Answer 8

Comparing eccentric ER strength to concentric IR strength