quadrangular-triangular-spaces
A 28-year-old baseball pitcher presents with vague posterior shoulder pain and weakness of external rotation. Symptoms worsen with overhead activities. Examination reveals atrophy of the posterior deltoid and weakness of shoulder abduction from 15-90 degrees. Sensation is diminished over the lateral aspect of the proximal arm (regimental badge area). MRI shows fatty infiltration of teres minor and posterior deltoid with a paralabral cyst extending posteriorly. **Which anatomical space is MOST likely compressed, and what are its borders?**
Mark each as TRUE or FALSE
Triangular space - bounded by teres minor, teres major, and long head of triceps
Quadrangular space - bounded by teres minor, teres major, long head of triceps, and surgical neck of...
Triangular interval - bounded by teres major, long head of triceps, and lateral head of triceps
Suprascapular notch - bounded by superior transverse scapular ligament and scapular notch
Spinoglenoid notch - bounded by scapular spine and posterior glenoid
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Click T (True) or F (False) for each option