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[Bone defects as complication following total hip endoprosthesis implant]
1Chirurgische Klinik und Poliklinik, Klinikum Innenstadt, Ludwig-Maximilians-Universität München.
Der Orthopade
|November 1, 1994
Summary
This study shows promising early results for cementless revision hip arthroplasty using bone grafts in patients with significant bone loss. The technique facilitated bone stock restoration and patient mobilization, with no infections reported.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
Context:
- Revision hip arthroplasty often involves significant bone stock loss, particularly after previous cemented procedures.
- Managing aseptic loosening with bone defects presents a challenge in revision total hip arthroplasty (THA).
Purpose:
- To evaluate the efficacy of cementless revision arthroplasty with allogenic bone grafting in patients with substantial acetabular and femoral bone loss.
- To assess early functional outcomes and radiological bone stock revitalization following revision THA.
Summary:
- A cohort of 129 patients underwent cementless revision hip arthroplasty, many requiring extensive allogenic bone grafting for severe bone loss.
- No infections were observed despite the high rate of bone grafting. Early results showed good patient mobilization and radiological evidence of bone stock revitalization.
- Five patients required re-revision for loosening or fracture, and two experienced femoral component sinking.
Impact:
- The findings encourage the use of cementless techniques and bone grafting for restoring the implant bed in destructive aseptic loosening.
- Further long-term follow-up is needed to confirm allograft incorporation and the durability of these reconstructions.