Nerve Entrapment
A 35-year-old volleyball player presents with posterior shoulder pain and progressive weakness of external rotation. Examination reveals infraspinatus atrophy but normal supraspinatus strength. MRI shows a paralabral cyst at the spinoglenoid notch with associated posterior labral tear. EMG confirms infraspinatus denervation. Regarding suprascapular nerve entrapment:
Mark each as TRUE or FALSE
The suprascapular nerve arises from the upper trunk (C5-C6) of the brachial plexus; it passes throug...
Entrapment sites include the suprascapular notch (affects both supraspinatus and infraspinatus) and ...
The suprascapular nerve arises from the lower trunk; it innervates subscapularis and teres minor; sp...
Clinical presentation includes posterior/lateral shoulder pain (worse with cross-body adduction), we...
Treatment depends on etiology: ganglion cysts may be treated with observation, aspiration, or arthro...
Answer the questions to see explanations
Click T (True) or F (False) for each option