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Sports Medicine
intermediate
X-Type

Shoulder Instability Classification

Shoulder Injuries

A 22-year-old rugby player presents 24 hours after his third anterior shoulder dislocation. Each episode occurred during tackling and was reduced on the field. He has apprehension with the arm in abduction and external rotation. MRI arthrogram reveals an anterior labral tear with a glenoid bone loss of 22% and a Hill-Sachs lesion engaging at 90 degrees of abduction. Regarding shoulder instability:

Mark each as TRUE or FALSE

A

Anterior dislocation is most common (95%), typically occurring with abduction, external rotation, an...

B

Recurrence risk factors include young age (80-90% in patients less than 20 years), male sex, contact...

C

Posterior dislocation is most common; the Hill-Sachs lesion occurs anteriorly; Bankart lesion is a h...

D

Glenoid bone loss greater than 20-25% or "inverted pear" glenoid indicates significant bone loss req...

E

Arthroscopic Bankart repair addresses soft tissue Bankart lesion with suture anchors; success rates ...

Answer the questions to see explanations

Click T (True) or F (False) for each option