Painless infraspinatus atrophy due to suprascapular nerve entrapment.

摘要: A case of painless suprascapular nerve entrapment, resulting in isolated atrophy and weakness the infraspinatus, is described. Electromyography was used to confirm clinical diagnosis. The etiology this neuropathy ranges from trauma overexertion upper extremity. Consequent entrapment most often occurs at or spinoglenoid notch. Local ganglionic cysts have been found compressing nerve. Conservative management, including "benign neglect," physical therapy, local injections, effective. Surgical decompression may be indicated refractory posttraumatic cases.