• Jae-Chul Yoo, Jin-Hwan Ahn, Jung-Ro Yoon, and Jae-Hyuk Yang.
• Department of Orthopaedic Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea.
• Am J Sports Med. 2010 May 1;38(5):950-7.

BackgroundOver 60 repair/reconstruction techniques have been described for the treatment of coracoclavicular (CC) ligament injuries.PurposeTo report the functional and radiological outcomes of single-tunnel CC ligament reconstruction using autogenous semitendinosus tendon.Study DesignCase series; Level of evidence, 4.MethodsBetween August 2005 and January 2008, a total of 21 patients, 16 patients (14 men, 2 women) with a Rockwood type IV, type V, or a chronic type III acromioclavicular (AC) dislocation and 5 patients (4 men, 1 woman) with a painful nonunited distal clavicle fracture with CC separation, underwent CC reconstructive surgery using a semitendinosus autograft. All 21 patients were followed up clinically and radiographically. The mean follow-up was 33 months (range, 18-47), and the mean patient age was 39.8 years (range, 18-70). Chronic type III AC dislocations and nonunited distal clavicle fractures with CC separation were scored using preoperative AC scoring (AC Joint Separation Questionnaire). Constant, University of California-Los Angeles (UCLA), and AC scores were evaluated for all patients at final follow-up.ResultsAt the final follow-up, 10 patients achieved an "excellent" result and 11 a "good" result according to the AC scoring scheme. Mean final Constant and UCLA scores were 84.7 (range, 67-94) and 30.0 (range, 23-35), respectively. In the antero-posterior (AP) plane, 17 (81%) of the 21 patients maintained complete reduction, and 1 of the remaining 4, a manual laborer, had complete reduction loss. Of the 17 patients with an axillary view at final follow-up, 1 patient (5.9%) showed partial subluxation, although no subluxation was observed in the AP radiograph. The other 16 patients (94.1%) had a complete reduction state in axillary view.ConclusionSingle-tunnel CC reconstruction with an autogenous hamstring tendon graft after a mean follow-up of 33 months (range, 18-47) appears to be a satisfactory means of treating acute Rockwood type IV, V, chronic type III, and painful nonunited distal clavicle fractures with CC separation.

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