Abstract
Purpose
To evaluate the radiographic long-term result of femoral revision hip arthroplasty using impacted cancellous allograft combined with cemented, collarless, polished and tapered stem.
Materials and methods
Among 28 patients with impacted cancellous allograft with a cemented stem, 28 hips from 26 consecutive patients were analyzed retrospectively. The average patient age was 59 years. The follow-up period ranged 9 years 6 months to 14 years 5 months (mean, 12, 5 years). Radiographic parameters analyzed in this study included subsidence of the stem in the cement, subsidence of the cement mantle in the femur, bone remodeling of the femur, radiolucent line, and osteolysis.
Results
Radiographic analysis showed very stable stem initially. 27 stems showed minimal subsidence (less than 5 mm) and 1 stem showed moderate subsidence (about 10 mm) in the cement. But there was no mechanical failure and subsidence at the composit-femur interface. Evidence of cortical and trabecular remodeling were observed in all cases. No radiolucent line or osteolysis were found in the follow-up period. There were 4 proximal femoral cracks and 1 distal femoral splitting during operation.
Conclusion
The result of cemented stem revision with the use of impacted cancellous allograft was good long-terand femoral bone stock deficiency may be reconstructed successfully.
