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  • Title: Ten-year results of uncemented hip stems for failed intertrochanteric osteotomy.
    Author: Breusch SJ, Lukoschek M, Thomsen M, Mau H, Ewerbeck V, Aldinger PR.
    Journal: Arch Orthop Trauma Surg; 2005 Jun; 125(5):304-9. PubMed ID: 15742190.
    Abstract:
    INTRODUCTION: Inferior survival of cemented total hip arthroplasty has been reported after previous femoral osteotomy. The purpose of this study was to evaluate the long-term survival of uncemented stems after femoral osteotomy. MATERIALS AND METHODS: Forty-eight hips in 45 patients had undergone conversion THA for a failed intertrochanteric osteotomy of the hip after a mean of 12 years (2-33 years). Mean time of follow-up was 11 years (5-15 years). RESULTS: At follow-up, two patients (three hips) had died, and one patient (one hip) was not located. Three patients (three hips) underwent femoral revision-one for infection and two for aseptic loosening of the stem. Survival of the stem was 94% at 10 years, and survival with femoral revision for aseptic loosening as an end point was 96%. The median Harris Hip Score at follow-up was 80 points. Radiolucent lines in Gruen zones 1 and 7 were present in 14 and 18% of hips, respectively. Radiolucencies in other zones were not detected. There was no radiographic evidence of femoral osteolysis, stress-shielding or loosening. CONCLUSION: The results with this type of uncemented tapered titanium femoral component after proximal femoral osteotomy are encouraging and compare to those achieved in patients with regular femoral anatomy.
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