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[Cementless Femoral Revision THR after Wagner- Medium-term Results.]
1Ortopedická klinika IPVZ FN Na Bulovce, Praha.
Summary
The Wagner revision stem effectively achieved bone ingrowth and biological stabilization in patients with large proximal femur defects, offering an alternative to resection arthroplasty.
Area of Science:
- Orthopedic surgery
- Biomaterials science
Context:
- Total hip replacement (THR) often requires revision surgery due to aseptic or septic loosening.
- Large bone defects in the proximal femur present significant challenges for revision arthroplasty.
Purpose:
- To evaluate the efficacy of the cementless Wagner revision stem in managing large proximal femur defects.
- To assess bone ingrowth, implant stability, and clinical outcomes following revision surgery.
Summary:
- The study reviewed 13 patients who received Wagner revision stems for large proximal femur defects between 1992-1994.
- Indications included septic and aseptic loosening of THR, with 12 patients also undergoing cup revision.
- Radiographs confirmed bone ingrowth and secondary biological stabilization in all patients, with no stem loosening observed, though subsidence occurred in 7 patients.
Impact:
- The Wagner revision stem demonstrates potential as a viable alternative to resection arthroplasty in specific cases of complex hip revision.
- Findings support the use of cementless revision stems for achieving long-term implant stability and bone integration in challenging orthopedic cases.