Abstract
Complete tears of the ulnar collateral ligament (UCL) of the thumb are often complicated by the Stener lesion, the interposition of the adductor aponeurosis between the ruptured ends of the UCL. The Stener lesion prevents healing of the UCL and, if left untreated, results in continued pain and weakness with pinch. Arthroscopic reduction of the Stener lesion has been described and is a minimally invasive alternative to open repair of UCL injuries in athletes.
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