Revision Total Hip Arthroplasty Using the Kerboull Acetabular Reinforcement Device and Structural Allograft for Severe Defects of the Acetabulum

Abstract Background The purpose of this study is to review our experience with Kerboull reinforcement device combined with bulk allograft for management of severe acetabular defects. Methods We investigated the results of revision total hip arthroplasty (THA) in 65 hips of 59 patients (10 male, 49 female) with Paprosky type 3A or 3B acetabular bone defects. Functional outcome was assessed using the Merle d'Aubigne hip score. Post-operative radiographs were examined for evidence of cup loosening. The mean age at revision THA was 59.1 years (23-85) and mean follow-up duration was 11.2 years (2-15). Results The Merle d'Aubigne hip score improved from 10.6 points (5-15) before surgery to 17.1 points (15-18) ( P Conclusion Despite massive bone defects, we achieved favorable results for revision THA using bulk allograft and the Kerboull reinforcement device.