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- Title
Infraspinatus muscle atrophy in a 23-year-old hockey player.
- Authors
Parnes, Nata; Scanaliato, John P.; Sandler, Alexis B.
- Abstract
A 23-year-old male presented to an orthopedics clinic with right shoulder pain and weakness that had begun after falling onto an outstretched hand during a hockey game 1 year earlier. After radiographs revealed no abnormalities, a magnetic resonance imaging study showed a superior labrum anterior and posterior (SLAP) tear and an associated large paralabral cyst compressing the suprascapular nerve at the spinoglenoid notch (Figure 1B). Magnetic resonance imaging is used to visualize muscular atrophy and underlying causes of nerve impingement, most commonly labral or rotator cuff pathology; however, electromyography and nerve conduction velocity studies are the gold standard in confirming the diagnosis.[1] Paralabral cysts, which are accumulations of synovial fluid escaping the glenohumeral joint through a labral tear, are the most common causes of suprascapular nerve entrapment.
- Subjects
MUSCULAR atrophy; HOCKEY players; SHOULDER; SHOULDER injuries; SHOULDER disorders; SUPRASPINATUS muscles; NERVE conduction studies
- Publication
Canadian Medical Association Journal (CMAJ), 2023, Vol 195, Issue 40, pE1384
- Publication type
Article
- DOI
10.1503/cmaj.230792