Abstract
Acromioclavicular (AC) joint injuries are the most common shoulder injuries in the athletic population. The literature is rife with various surgical techniques and implants as well as opinion on proper timing of surgical options. Patient outcomes are generally similar across fixation method. Complications are common following reconstruction, and the specific type of complication may depend on the technique used. Fracture and graft elongation are associated with use of allograft, whereas button cutout and skin irritation can occur with cortical suture-fixation methods. This technical paper describes an arthroscopically assisted acute AC joint reconstruction technique using the Infinity-Lock Button System. This technique provides a minimally invasive, low-profile reconstruction that may minimize risk of clavicle and coracoid fracture as well as overlying skin irritation. Acute reconstruction may permit healing of the native coracoclavicular and AC ligaments and mitigate risk of future AC joint arthritis.