title: Arthroscopy-assisted reconstruction of coracoclavicular ligament by Endobutton fixation for treatment of acromioclavicular joint dislocation.
abstract: OBJECTIVE
  The aim of this study was to evaluate the clinical outcomes of arthroscopy-assisted reconstruction of the coracoclavicular (CC) ligament using Endobutton for treating acromioclavicular (AC) joint dislocation.
  
  
  METHODS
  From March 2012 to May 2013, a total of 22 patients with fresh AC joint dislocation (Rockwood type III and type V) were treated with arthroscopy-assisted Endobutton reconstruction of the CC ligament. The regular post-operation follow-up was performed. Shoulder joint function was assessed with Constant-Murley scores. Postoperative efficacy of the surgery was evaluated using the Karlsson criterion.
  
  
  RESULTS
  The 22 patients were followed postoperatively for an average of 24 months (16-31 months). Among them, 20 patients achieved good functional recovery with no pain. Two patients had slight pain in the acromion during shoulder joint motion with limited abduction at 3 months, both of whom had recovered at 6 months. Radiography confirmed anatomical reduction of the AC joint in all patients. At 1 year, the Constant-Murley scores were 93.1 ± 2.4 points on the injured side versus 94.2 ± 2.7 points on the uninjured side. The difference did not reach statistical significance (P > 0.05). Postoperative Karlsson evaluation ranked 20 patients (90.9 %) as grade A and 2 as grade B (9.1 %) at the 3-month follow-up. All patients had become grade A at 6 months. None of the patients had brachial plexus or peripheral vascular injuries.
  
  
  CONCLUSIONS
  Arthroscopy-assisted reconstruction of the coracoclavicular ligament by Endobutton fixation is a safe, easy method for treating AC joint dislocation. It provides reliable fixation, causes little trauma, and has a fast recovery.
authors.affiliation: Department of Joint Surgery, The Eighty-Ninth Hospital of People's Liberation Army, Weifang, 261021, China, zxcscn@126.com.
authors.forename: Zhaoxun
authors.initials: Z
authors.lastname: Pan
authors.forename: Hongxin
authors.initials: H
authors.lastname: Zhang
authors.forename: Chao
authors.initials: C
authors.lastname: Sun
authors.forename: Lianjun
authors.initials: L
authors.lastname: Qu
authors.forename: Yan
authors.initials: Y
authors.lastname: Cui
mesh_terms: D000173:Acromioclavicular Joint / Q000293:injuries / Q000601:surgery*; D000293:Adolescent; D000328:Adult; D001182:Arthroscopy; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000601:surgery*; D008023:Ligaments, Articular / Q000601:surgery*; D008297:Male; D053441:Suture Anchors; D016896:Treatment Outcome; D055815:Young Adult