期刊
JOURNAL OF SHOULDER AND ELBOW SURGERY
卷 15, 期 4, 页码 395-398出版社
MOSBY-ELSEVIER
DOI: 10.1016/j.jse.2005.10.019
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We studied a prospective, consecutive series of 8 patients presenting with massive rotator cuff tears (>5 cm. in maximum dimension), all associated with severe retraction and fatty infiltration of the supraspinatus muscle on magnetic resonance imaging studies. All 8 patients had suprascopular neuropathy shown by electromyography (EMG) findings of denervation in the suprospinatus and/or infraspinatus muscles. Clinically, all patients had severe limitation of active motion, with no patient able to elevate their affected arm actively >40 degrees. Four patients elected debridement and partial surgical repair using margin convergence principles via a mini-open approach. Follow-up of these patients averaged 24 months. All 4 patients regained the ability to elevate their affected arm to >90 degrees, and to place their hand actively behind their head without assistance. Two of the 4 surgical patients consented to follow-up EMG studies that demonstrated, in both cases, that the suprascapular nerve had significant renervation potentials, with almost complete recovery of the nerve in 1 case. We conclude that suprascopular neuropathy may be associated with massive rotator cuff tears, and that partial rotator cuff repair may allow recovery of the nerve and improvement of function.
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