Revision of the acetabular component in dysplastic hips previously reconstructed with a shelf autograft: Study of the outcome with special assessment of bone-stock changes

M. Abolghasemian, M. Drexler, H. Abdelbary, H. Sayedi, D. Backstein, P. Kuzyk, O. Safir, A. E. Gross

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

In this retrospective study we evaluated the proficiency of shelf autograft in the restoration of bone stock as part of primary total hip replacement (THR) for hip dysplasia, and in the results of revision arthroplasty after failure of the primary arthroplasty. Of 146 dysplastic hips treated by THR and a shelf graft, 43 were revised at an average of 156 months, 34 of which were suitable for this study (seven hips were excluded because of insufficient bone-stock data and two hips were excluded because allograft was used in the primary THR). The acetabular bone stock of the hips was assessed during revision surgery. The mean implant-bone contact was 58% (50% to 70%) at primary THR and 78% (40% to 100%) at the time of the revision, which was a significant improvement (p < 0.001). At primary THR all hips had had a segmental acetabular defect > 30%, whereas only five (15%) had significant segmental bone defects requiring structural support at the time of revision. In 15 hips (44%) no bone graft or metal augments were used during revision. A total of 30 hips were eligible for the survival study. At a mean follow-up of 103 months (27 to 228), two aseptic and two septic failures had occurred. Kaplan-Meier survival analysis of the revision procedures demonstrated a ten-year survival rate of 93.3% (95% confidence interval (CI) 78 to 107) with clinical or radiological failure as the endpoint. The mean Oxford hip score was 38.7 (26 to 46) for non-revised cases at final follow-up. Our results indicate that the use of shelf autografts during THR for dysplastic hips restores bone stock, contributing to the favourable survival of the revision arthroplasty should the primary procedure fail.

Original languageEnglish
Pages (from-to)777-781
Number of pages5
JournalBone and Joint Journal
Volume95 B
Issue number6
DOIs
StatePublished - 1 Jan 2013
Externally publishedYes

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

Fingerprint

Dive into the research topics of 'Revision of the acetabular component in dysplastic hips previously reconstructed with a shelf autograft: Study of the outcome with special assessment of bone-stock changes'. Together they form a unique fingerprint.

Cite this