Late presentation of acromial base fracture after reverse shoulder arthroplasty: a case report

This is the authors' abstract. We don't add key points for this paper.

For many patients with rotator cuff arthropathy, a reverse shoulder arthroplasty is a surgical option with good results in terms of pain and function.5,6,17 Acromion fractures are a recognized postoperative complication, and increased tension on the deltoid is hypothesized as a possible contributing factor.14,22 Fracture classification is as outlined: Type 1 are tip of the acromion fractures; type 2 are lateral acromion fractures; and type 3 are base of acromion fractures.11 The prevalence of acromial fractures after reverse shoulder arthroplasty ranges between 0.8% and 10.2%,11 but base of acromion fractures are relatively rare with incidence of approximately 1% in one review of 400 patients.