Shoulder Instability
A 19-year-old rugby player presents following an anterior shoulder dislocation during a tackle. This is his third dislocation in 2 years, all occurring with the arm in abduction and external rotation. Examination shows positive apprehension test at 90 degrees of abduction, relieved by the relocation test. He also has a positive sulcus sign with the arm at the side. Regarding glenohumeral instability:
Mark each as TRUE or FALSE
Anterior instability is the most common direction (95%), typically caused by forced abduction and ex...
Posterior instability accounts for 2-5% of dislocations; mechanism is typically forward flexion, add...
Posterior instability is more common than anterior; anterior dislocations result from internal rotat...
Multidirectional instability (MDI) involves symptomatic instability in more than one direction (ante...
The apprehension test and relocation test assess anterior instability: apprehension at 90 degrees ab...
Answer the questions to see explanations
Click T (True) or F (False) for each option