title: Limited distal clavicle excision of acromioclavicular joint osteoarthritis.
abstract: Resection of the distal aspect of clavicle has a well-documented treatment modality in case of acromioclavicular joint osteoarthritis resistant to conservative treatment.
  
  
  
  Limited (mean ∼0.5cm distal end of clavicle resection) distal clavicle excision of A-C joint arthritis in cases resistant to conservative treatment may reduce the pain and improve the shoulder function.
  
  
  
  In this study, we retrospectively evaluated the results of limited distal clavicle excision of acromioclavicular joint osteoarthritis resistant to conservative treatment. All patients were evaluated by using the Visual Analogue Scale (VAS) and UCLA shoulder rating scale (University of California Los Angeles), either before surgery or final follow-up period for pain and functional results, respectively.
  
  
  
  A total of 110 patients (48 male, 62 female) with AC joint arthritis, treated between the years of 2008-2012, were retrospectively analyzed. A total of 30 patients (12 male, 18 female) who failed to show improvement with conservative treatment underwent limited surgical open excision of distal clavicle. The mean age of the study population was 52.5±1.2 years. The mean follow-up period was 27±1.3 months. The mean preoperative VAS score was 83.6±5.58 (range, 70-90) while mean VAS was 26.6±9.3 (range, 10-50) at the final follow-up. There was a statistically significant difference between pre- and postoperative VAS scores in patients who had treated by surgical approach (P<0.001). The mean UCLA score of the patients increased postoperatively from 11.5 (range, 9-14) to 29.2 (range, 27-32) at the final follow-up. There was a statistically significant difference between the two time periods with respect to UCLA scores (P<0.001).
  
  
  
  In patients with AC osteoarthritis resistant to conservative therapy, the hypothesized limited clavicle excision (mean ∼0.5cm distal end of clavicle resection with preserving coracoclavicular ligaments and inferior capsule) reduced the pain and improved the shoulder function.
  
  
  
  Our midterm follow-up (mean 27 months) results showed that limited distal clavicle excision of patients with AC joint osteoarthritis resistant to conservative treatment (0.5cm distal end of clavicle resection with preserving inferior capsule, and coracoclavicular ligaments) reduced the pain and improved the shoulder function.
  
  
  
  IV (Retrospective study).
authors.affiliation: Orthopaedics and Trauma, Ozel Antalya Memorial Hospital, zafer mah .yildirim beyazit cad no 91, Kepez Antalya, 07025, Turkey. Electronic address: kgokkus@gmail.com.
authors.forename: K
authors.initials: K
authors.lastname: Gokkus
authors.affiliation: Orthopaedics and Trauma department, Ozel Bursa Bahar Hospita, Bursa, Turkey.
authors.forename: M
authors.initials: M
authors.lastname: Saylik
authors.affiliation: Orthopaedics and Trauma Department, Akdeniz University School of Medicine, Turkey.
authors.forename: H
authors.initials: H
authors.lastname: Atmaca
authors.affiliation: Radiology Department, Antalya Memorial Hospital, Antalya, Turkey.
authors.forename: E
authors.initials: E
authors.lastname: Sagtas
authors.affiliation: Orthopaedics and Trauma Department, Antalya Memorial Hospital, Antalya, Turkey.
authors.forename: A T
authors.initials: AT
authors.lastname: Aydin
mesh_terms: D000173:Acromioclavicular Joint / Q000601:surgery*; D000328:Adult; D000368:Aged; D002968:Clavicle / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D019637:Orthopedic Procedures / Q000379:methods*; D010003:Osteoarthritis / Q000601:surgery*; D012189:Retrospective Studies; D016896:Treatment Outcome
keywords: AC Joint; Distal clavicle excision; Osteoarthritis; Shoulder impingement syndrome