Glenoid-Anchor Cerclage for the Unstable Reverse Shoulder Arthroplasty: A Surgical Technique

Instability following reverse shoulder arthroplasty (RSA) is a notable complication, with challenges arising from various surgical and patient-specific factors that negatively impact the glenohumeral compressive forces necessary for RSA stability. This paper introduces a novel glenoid-anchor cerclage technique to address the instability in high-risk RSA cases. By placing an all-suture anchor superiorly above the glenosphere and integrating it through a transosseous tunnel through the greater tuberosity, this method serves as an adjunct for improving stability by counteracting superior and anterior translation. Here, we detail our preferred procedural steps, preoperative considerations, and postoperative management for this approach, emphasizing its potential to reduce recurrent instability.