title: [Controlled clinical trials on different surgical methods for the treatment of acromioclavicular dislocation].
abstract: OBJECTIVE
  To compare clinical effects of clavicular hook plate fixation, coracoid transplantation, and clavicular hook plate fixation combined with modified dynamic muscle transfer for the treatment of the complete acromioclavicular dislocation.
  
  
  METHODS
  From January 2006 to November 2009, 65 patients with sustained complete acrominoclavicular dislocation were treated with clavicular hook plate fixation, coracoid transplantation,and clavicular hook plate fixation combined with modified dynamic muscle transfer. All the patients were divided into three groups: 22 patients in group A were treated with clavicular hook plate fixation, including 17 males and 5 females, with an average age of (31.0 +/- 10.0) years; 21 patient in group B were treated with coracoid transplantation, including 16 males and 5 females,with an average age of (33.0 +/- 6.4) years; 22 patients in group C were treated with clavicular hook plate fixation combined with modified dynamic muscle transfer,including 18 males and 4 females, with an average age of (30.0 +/- 5.3) years. Postoperative functional recovery was evaluated by Karlsson criteria.
  
  
  RESULTS
  All the patients were followed up, and the duration ranged from half to three years (averaged 1.5 years). In group A, 8 patients got half re-dislocation, 2 patients got complete re-dislocation and arthritis of acromioclavicular joint after internal fixations removal, 1 patient had clavicular hook plate broken after operation. In group B, 7 patients got half re-dislocation, 1 patient got complete re-dislocation,and 5 patients had arthritis of acromioclavicular joint with acute pain and limited shoulder function after internal fixations removal. In group C,2 patients got half re-dislocation, no complete re-dislocation and arthritis of acromioclavicular joint occurred after internal fixations removal. According to Karlsson evaluation, in group A, 12 patients obtained an excellent result, 8 good and 2 poor; in group B, the data were 9, 7 and 5 respectively; in group C, they were 20, 2 and 0 respectively. There were remarkable differences of therapeutic effects between the clavicular hook plate fixation combined with modified dynamic muscle transfer and that with either of the former two treatment methods (P < 0.05).
  
  
  CONCLUSIONS
  Clavicular hook plate combined with modified dynamic muscle transfer is a reliable and good treatment for the complete acrominoclavicular dislocation, with advantages such as easy to handle,stable fixation and early exercise.
authors.affiliation: The 2nd Department of Trauma, Orthopaedics and Trauma Center of Wangjing Hospital Affiliated to China Academy of Chinese Medical Sciences, Beijing 100700, China.
authors.forename: Jian-hua
authors.initials: JH
authors.lastname: Sun
authors.forename: An
authors.initials: A
authors.lastname: Yan
authors.forename: Peng-cheng
authors.initials: PC
authors.lastname: Wang
authors.forename: Xin-hu
authors.initials: XH
authors.lastname: Zhang
authors.forename: Yong-sheng
authors.initials: YS
authors.lastname: Lin
authors.forename: Yu-min
authors.initials: YM
authors.lastname: Liu
authors.forename: Bin
authors.initials: B
authors.lastname: Liu
authors.forename: Yong-qian
authors.initials: YQ
authors.lastname: Jiao
authors.forename: Gui-xian
authors.initials: GX
authors.lastname: Dong
authors.forename: Yu
authors.initials: Y
authors.lastname: Li
authors.forename: Hong-tao
authors.initials: HT
authors.lastname: Shang
authors.forename: Ning
authors.initials: N
authors.lastname: Zhang
authors.forename: Quan
authors.initials: Q
authors.lastname: Wang
authors.forename: Ming-yan
authors.initials: MY
authors.lastname: Li
mesh_terms: D000173:Acromioclavicular Joint / Q000000981:diagnostic imaging / Q000293:injuries* / Q000503:physiopathology / Q000601:surgery; D000328:Adult; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D055815:Young Adult