title: The treatment of type III acromioclavicular dislocations with a modified Cadenat procedure: surgical technique and mid-term results.
abstract: BACKGROUND
  The treatment of type III acromioclavicular injuries is controversial. Both conservative and surgical approaches have been successful. Aim of the present study was to prospectively evaluate the results of the modified Cadenat procedure in subjects with type III acromioclavicular joint injuries.
  
  
  METHODS
  Twenty-eight patients with acute type III acromioclavicular joint dislocations (mean age 31 years) were prospectively enrolled in the present study. The delay between the injury and the surgery varied between 4 and 19 days, with an average of 8.3 days. All patients were evaluated both preoperatively and postoperatively with radiographs and clinically with visual analog scale and Constant score. A modified Cadenat procedure was performed in all cases.
  
  
  RESULTS
  Twenty-five patients were evaluated at an average follow-up of 72 months. One patient had a re-dislocation 3 years after surgery. At the last follow-up, average visual analog scale score of was 0.96 (range 0-3), while mean constant score was 94.32 (range 90-99) and 92 % of patient were very happy or happy with their functional result. Radiographs showed complete reduction in 22 patients and loss of reduction in two cases. No major complications were recorded.
  
  
  CONCLUSIONS
  This is the first clinical report on a modified Cadenat procedure. This operation has a reduced morbidity if compared to other techniques involving autologous grafts. Moreover, it yielded good functional results, with complete pain relief, and full strength recovery at mid-term follow-up. No major loss of reduction or recurrence of instability was observed.
  
  
  METHODS
  4, Case series.
authors.affiliation: Centre Orthopédique Santy, Lyon, France, simone.cerciello@me.com.
authors.forename: Simone
authors.initials: S
authors.lastname: Cerciello
authors.forename: Thomas Bradley
authors.initials: TB
authors.lastname: Edwards
authors.forename: Brent Joseph
authors.initials: BJ
authors.lastname: Morris
authors.forename: Giuliano
authors.initials: G
authors.lastname: Cerciello
authors.forename: Gilles
authors.initials: G
authors.lastname: Walch
mesh_terms: D000173:Acromioclavicular Joint / Q000000981:diagnostic imaging / Q000293:injuries*; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D019637:Orthopedic Procedures / Q000379:methods*; D010147:Pain Measurement; D017060:Patient Satisfaction; D011446:Prospective Studies; D011859:Radiography; D012008:Recurrence; D012783:Shoulder Dislocation / Q000000981:diagnostic imaging / Q000601:surgery*; D016896:Treatment Outcome