Managing Glenoid Bone Loss in Revision Total Shoulder Arthroplasty: A Review

2 Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA Revision of the glenoid component in total shoulder arthroplasty (TSA) remains an unresolved problem. Even with meticulous surgical technique, available bone stock may preclude the implantation of a new glenoid component. Multiple studies have demonstrated that patients in whom a new glenoid can be placed have improved pain scores and satisfaction when compared to patients who lack sufficient bone to accommodate a glenoid component. Glenoid bone grafting has become a common method of recreating bone stock in hopes of preventing later fractures, maintaining joint kinematics, and allowing for glenoid reimplantation in a single or dual stage manner. Based on the limited available data, cases of revision TSA that do not allow for glenoid reimplantation are most reliably treated with glenoid bone grafting followed by glenoid reimplantation at a secondary surgery if deemed necessary. This review serves to discuss aseptic loosening of the glenoid as well as to describe the surgical options for management of glenoid bone loss in revision TSA.