Osseous Integration of the Central Peg of an All-Polyethylene Glenoid With 3 Different Surgical Techniques.

All-polyethylene glenoid components designed for osseous integration of the central peg can be placed with no graft (NG), autogenous bone graft (ABG), or demineralized bone matrix (DBM). The purpose of this study was to compare osseous integration with these 3 techniques. A randomized controlled trial was performed of 153 total shoulder arthroplasties using a pegged allpolyethylene glenoid component designed for osseous integration. Central peg treatment included NG, ABG, or DBM. The primary outcome was central peg osseous integration defined as bone presence between the central fins 1 year postoperatively. Central osseous integration was observed in 90% of cases treated with ABG, 68% of cases treated with DBM, and 68% of cases treated with NG (P=.022). Postoperative Wirth grading revealed radiolucency around the central peg (grade 1) in 2.4% of cases with ABG, 5.4% of cases with DBM, and 9.8% of cases with NG (P=.134). At short-term follow-up, osseous integration of the central peg of an all-polyethylene glenoid designed for bony growth between the central fins appears to be highest when treating the central peg with ABG compared with leaving the central peg untreated or using DBM. [Orthopedics. 2020;43(5):278-283.].

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