Double-button Fixation System for Management of Acute Acromioclavicular Joint Dislocation

Document Type : RESEARCH PAPER


1 Firuzgar Hospital, Iran University of Medical Sciences, Tehran, Iran

2 Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran

3 Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran

4 Department of Pharmacology, school of Medicine, International Campus, Tehran University of Medical Sciences (IC-TUMS), Tehran, Iran Departments of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran


Background: Surgical treatments for acromioclavicular (AC) joint dislocation present with some complications. The present study was designed to evaluate the double-button fixation system in the management of acute acromioclavicular joint dislocation.

This cross sectional study, done between February 2011 to June 2014, consisted of 28 patients who underwent surgical management by the double-button fixation system for acute AC joint dislocation. Age, sex, injury mechanism, dominant hand, side with injury, length of follow up, time before surgery, shoulder and hand (DASH), constant and visual analogue scale (VAS) scores, and all complications of the cases during the follow up were recorded.

The mean age of patients was 33.23±6.7 years. Twenty four patients (85.71%) were male and four (14.28%) were female. The significant differences were observed between pre-operation VAS, constant shoulder scores and post-operation measurements (P=0.001, P=0.0001, P=0.0001, respectively). There were not any significant differences between right and left coracoclavicular (P=0.238), but two cases of heterotrophic ossifications were recorded. The mean follow-up time was 16.17±4.38 months.

According to the results, the double-button fixation system for management of acute acromioclavicular joint dislocation has suitable results and minimal damage to the soft tissues surrounding the coracoclavicular ligaments.


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