Retrospective cohort study of 66 shoulders treated with total shoulder arthroplasty using an all-polyethylene press-fit pegged glenoid component, asking whether postoperative glenoid component retroversion is associated with radiographic osteolysis around the central peg at short-term follow-up.
When planning total shoulder arthroplasty in a patient with preoperative glenoid retroversion, recognize that standard asymmetric reaming frequently leaves the component retroverted — and any postoperative version ≥15° carries roughly a fivefold risk of center-peg osteolysis.
Target component placement within 15° of the scapular plane, and consider augmented glenoid components or advanced navigation in cases with severe preoperative deformity where adequate correction cannot be achieved with reaming alone.
Retrospective cohort study of 66 shoulders treated with total shoulder arthroplasty using an all-polyethylene press-fit pegged glenoid component, asking whether postoperative glenoid component retroversion is associated with radiographic osteolysis around the central peg at short-term follow-up.
When planning total shoulder arthroplasty in a patient with preoperative glenoid retroversion, recognize that standard asymmetric reaming frequently leaves the component retroverted — and any postoperative version ≥15° carries roughly a fivefold risk of center-peg osteolysis.
Target component placement within 15° of the scapular plane, and consider augmented glenoid components or advanced navigation in cases with severe preoperative deformity where adequate correction cannot be achieved with reaming alone.