Glenoid-labral cyst entrapping the suprascapular nerve: Dissolution after arthroscopic debridement of an extended SLAP lesion |
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Authors: | Martin H. Chochole M.D. Wolfgang Senker M.D. Christian Meznik M.D. Martin J. Breitenseher M.D. |
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Affiliation: | Orthopaedic Department, General Hospital, Amstetten, Austria |
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Abstract: | Glenoid labral cysts are commonly associated with labral tears, which can cause pain or instability. We present the case of a patient, referred for neurological complaints, who was actually suffering from supraspinatus nerve entrapment syndrome. Electroneurogram studies showed an isolated lesion of the branch to the infraspinatus muscle. Magnetic resonance imaging confirmed a glenoid labral cyst extending from the cranial glenoid to the scapular notch. After arthroscopic debridement of an extended SLAP-lesion that had caused joint fluid extrusion, the dissolution of the cyst was associated with complete neurological recovery. The patient is pain free and range of motion is normal. An attempt at an arthroscopic procedure seems warranted in cases like this, since cysts that accompany labral tears can dissolve after rigorous debridement of the torn labrum, much like meniscal cysts. Extended and hazardous open excisions can thus be avoided. |
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Keywords: | Shoulder Glenoid-labral cyst Supraspinatus nerve entrapment SLAP lesion Arthroscopy |
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