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[Acetabular convexity--a specific addition to total endoprosthetic hip replacement]
F Gleissner1, D Wessinghage, J G Fitzek
1I. Orthopädischen Klinik des BRK-Rheumazentrums Bad Abbach/Regensburg.
Zeitschrift Fur Orthopadie Und Ihre Grenzgebiete
|March 1, 1991
Summary
This study details a bone grafting technique for hip replacements, enhancing acetabular support in complex cases. The method shows high success rates, offering a superior alternative to conventional methods for severe hip joint degeneration.
Area of Science:
- Orthopedic Surgery
- Bone Grafting Techniques
Context:
- Acetabular dysplasia and severe hip joint degeneration pose challenges in total hip arthroplasty.
- Traditional acetabular reconstruction methods may have limitations in providing adequate support.
Purpose:
- To evaluate the efficacy of augmenting the acetabular convexity using corticocancellous bone blocks in total hip replacement.
- To assess the rate of bony union and clinical outcomes of this reconstructive technique.
Summary:
- A retrospective analysis of 101 hip replacements (82 patients) involving acetabular convexity augmentation with corticocancellous bone blocks between 1977 and 1988.
- Autologous bone was used in 88 cases, homologous in 13. Follow-up of 61 patients (77 augmentations) revealed a 92.2% bony bridge formation between the graft and the ilium.
- Indications included hip dysplasia, congenital dislocation, destructive coxitis, and loosened prostheses.
Impact:
- The corticocancellous bone block augmentation technique is a valuable addition for complex total hip replacements with extreme acetabular defects.
- This method demonstrates significant advantages over prosthetic shells and similar reconstructive materials, promoting stable osseointegration.