Arthroscopic Treatment of Acromioclavicular Joint Dislocation: A Preliminary Study of the Triple FengChao Button Technique.

BACKGROUND Acromioclavicular (AC) joint dislocation is a common shoulder injury, with a range of suture button techniques available for treatment. This study aimed to evaluate the clinical outcomes of a novel suture button technique - the FengChao button technique. MATERIAL AND METHODS Between December 2019 and December 2021, 25 patients with AC joint dislocation were treated using the arthroscopic triple FengChao button technique. Clinical outcomes measured included UCLA and CMS scores, operative time, and the incidence of complications. Radiological assessment focused on the coracoclavicular (CC) distance. RESULTS The follow-up period ranged from 6 to 19 months, with an average of 13.3 months. One patient required an open revision due to postoperative trauma. The mean operative time was 52.34±13.76 minutes. The UCLA score improved significantly from a preoperative average of 19.32±2.45 to 31.67±2.38 at the final follow-up (P<0.05). Similarly, the CMS score increased from 75.23±2.34 preoperatively to 92.73±2.96 at the final follow-up (P<0.05). The CC distance narrowed from a preoperative measurement of 21.34±1.32 mm to 9.23±1.13 mm 2 to 4 days postoperatively (P<0.05), and further to 11.93±1.03 mm at the final follow-up (P<0.05). CONCLUSIONS The arthroscopic triple FengChao button technique for AC joint dislocation offers satisfactory short-term functional outcomes.