Impaction bone grafting in revision hip surgery.

Area of Science:

• Orthopedic Surgery
• Biomaterials Science

Background:

• Revision hip arthroplasty presents challenges, particularly with significant femoral and acetabular bone loss.
• Traditional fixation methods may be less effective in cases of extensive bone defects.

Purpose of the Study:

• To evaluate the efficacy and safety of impaction bone grafting with cement for femoral and acetabular component fixation in revision hip arthroplasty.
• To assess clinical outcomes and complications in patients with severe bone loss undergoing revision hip surgery.

Main Methods:

• Retrospective review of 70 revision hip arthroplasties utilizing impaction bone grafting with cement.
• Assessment of femoral and acetabular component stability, bone loss (Endoklinik grades 3 and 4), and clinical scores (Harris hip, Merle D'Aubigne Postel).
• Follow-up duration averaged 37 months.

Main Results:

• Sixty-eight percent of femurs exhibited severe bone loss.
• Mean Harris hip score was 84; mean Merle D'Aubigne Postel score was 15.4.
• Minimal implant migration observed: one case of massive femoral subsidence (>10 mm), six cases of cup migration (>5 mm).
• One revision for sepsis; no aseptic loosening.
• Five surgical technique-related complications.

Conclusions:

• Impaction bone grafting with cement is a viable and effective technique for stabilizing femoral and acetabular components in revision hip arthroplasty.
• The technique demonstrates good clinical outcomes and acceptable complication rates in patients with extensive bone loss.
• Supports the use of this method for complex hip revision cases with significant bone defects.