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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXIX | Pages 172 - 172
1 Sep 2012
Vinayakam P Kneale K Zaveri A Slack R
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Introduction

Osteolysis causing proximal femoral deficiency is a major problem in revision hip arthroplasty. Various methods including impaction bone grafting and bone allografts have been used to address this issue. We have analysed bone reformation using extended trochanteric osteotomy and distally fixed proximal hydroxyapatite-coated modular revision hip system (Stryker Restoration System) in 100 consecutive revisions by a single surgeon.

Method

Consecutive patients undergoing revision of femoral stem using posterior approach, extended trochanteric osteotomy and modular hip revision system were included in the study. Exclusion criteria were infection and loss of follow up. Paprosky grading system was used to assess bone loss. Standardized pre-op radiographs and follow-up radiographs at 6 weeks, 6 months and yearly post surgery were used for analysis. Minimum follow-up of 18 months (1.5–3.5 years). Bone reformation is quantified as definite reformation, some evidence of reformation and no bone reformation. Extended trochanteric osteotomy union rates and subsidence rates were also observed.