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  • Title: Recurrent Dislocation of the Extensor Carpi Ulnaris Tendon with Ulnar-Sided Triangular Fibrocartilage Complex Injury in an Ice Hockey Player: A Case Report.
    Author: Tomori Y, Nanno M, Takai S.
    Journal: J Nippon Med Sch; 2020 Sep 09; 87(4):233-239. PubMed ID: 32350189.
    Abstract:
    Ulnar-sided wrist pain is common among athletes who subject their wrists to forceful rotational movements. Injury to the numerous complex structures in the ulnar wrist, including the extensor carpi ulnaris (ECU) tendon and triangular fibrocartilage complex (TFCC), can result in ulnar-sided wrist pain. Although differentiating between ECU tendinitis and TFCC injury is necessary, ECU tendon disorders and TFCC injury occasionally occur concurrently. Subluxation or dislocation of the ECU tendon is rare but may cause symptoms in athletes subjecting their wrists to forceful rotational movements. We present a case of recurrent dislocation of the ECU tendon and ulnar-sided TFCC injury in a 21-year-old male university-league ice hockey player. He initially underwent ECU stabilization; however, his ulnar wrist pain persisted, which adversely affected his athletic performance. He underwent additional surgery to repair the TFCC, which led to definitive resolution of his symptoms and resulted in his return to competitive performance 3 months postoperatively. Treatment of symptomatic dislocation of the ECU remains controversial. In our patient, recurrent dislocation of the ECU tendon with concurrent ulnar-sided TFCC injury resulted in ulnar-sided wrist pain. Combined reconstruction of the tendon's subsheath, using the extensor retinaculum, and repair of the TFCC injury was required for full recovery of his athletic performance.
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