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Femoral impaction allografting for significant bone loss in revision hip arthroplasty

Femoral impaction allografting for significant bone loss in revision hip arthroplasty

Hip Int 2017; 27(3): 281 - 285

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/hipint.5000438

Authors

Thomas A.J. Goff, Peter Bobak

Abstract

Introduction

Femoral impaction bone allografting in revision hip arthroplasty facilitates physiological reconstruction with restoration of bone stock, allowing implantation of a standard cemented femoral component. The purpose of this study was to report our experience in femoral component revision arthroplasty with impaction morsellised cancellous bone allograft using custom impactors and a cemented triple-taper polished stem.

Methods

Retrospective analysis of all cases of femoral component revision hip arthroplasty with impaction bone grafting undertaken by a single surgeon from 2005 to 2011. Outcome measures included radiographic analysis of stem subsidence over time, graft remodelling and incorporation, and clinical progress.

Results

We reviewed 47 consecutive hips in 44 patients, mean age 62 years (37-88). Femoral impaction with allograft was performed as either single stage (41 cases) or 2-stage (6 cases) procedures. All patients received a cemented C-stem prosthesis. The mean follow-up period was 5.1 (1.3-9.4) years. The median preoperative bone defect score was 3 (interquartile range [IQR] 2-3) using the Endo-Klinik classification. Radiological evidence of graft incorporation was observed in 89% (281 of 315 zones) with additional remodelling observed in 33% (103 of 315 zones). The median stem subsidence at 1-year follow-up was 1.1 mm (standard deviation [SD] 1.24 mm, range 0-6 mm). The median Oxford Hip Score at the most recent follow-up was 36.5. To date no femoral component has undergone further revision.

Conclusions

Encouraging results have been obtained with this technique for the treatment of significant bone loss in revision hip arthroplasty, allowing implantation of a standard prosthesis.

Article History

Disclosures

Financial support: None.
Conflict of interest: None.

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Authors

Affiliations

  • Leeds Teaching Hospitals NHS Trust, Academic Department of Trauma and Orthopaedics, Leeds General Infirmary, Leeds - UK

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