Summary. Acute acromioclavicular (AC) joint dislocation is still a challenging task for orthopedic surgeons. Objective: to compare the clinical and radiological results of treatment of patients with acute dislocation of the acromial end of the clavicle who were treated with a dynamic stabilization system with and without suture of acromioclavicular ligaments under arthroscopic control.
Materials and Methods. A retrospective analysis of the treatment of 44 patients with acute AC joint dislocations type III and type V by Rockwood classification was performed. The patients were divided into 2 groups: group I – 18 patients (40.9%) who underwent stabilization of the dislocation and fixation of the acromial end of the clavicle using a dynamic stabilization system and suture of the ligaments of the acromioclavicular joint under arthroscopic control; group II – 26 patients (59.1%) who underwent stabilization of the dislocation and fixation of the acromial end of the clavicle using a dynamic stabilization system without suture of the ligaments of the acromioclavicular joint under arthroscopic control. There were 40 male (90.9%) and 4 female (9.1%) patients aged 18–58 years (mean age 32.9±10.1 years). The mean time from injury to surgical treatment was 8.3±3.2 days (from 3 to 17 days). Clinical observation was carried out at an average time of 20.1±3.9 months after surgery (from 12 to 28 months). Clinical outcomes were assessed using the Oxford Shoulder scale, the Constant-Murley scale, and the Acromioclavicular Joint Instability Scoring System.
Results. The mean Oxford Shoulder score at the final follow-up on the injured side was 45.8±1.3 points and 46.2±1.3 points (p=0.422) in groups I and II, respectively. The mean Constant-Murley score at the final follow-up on the injured side was 94.6±2.4 points and 91.7±4.2 points (p=0.0134) in groups I and II, respectively. The mean score on the Acromioclavicular Joint Instability Scoring System at the final follow-up on the injured side was 83.8±7.1 points and 78.1±11.8 points (p=0.075) in groups I and II, respectively. No significant complications were observed in both groups.
Conclusions. The combination of the arthroscopically assisted technique of reconstruction of the acromioclavicular ligaments using high-strength sutures and fixation of the coracoclavicular ligaments using a dynamic stabilization system provides good long-term clinical results.
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