Authors: Blom, Ashley¹; Wylde, Vikki²; Livesey, Christine²; Whitehouse, Michael¹; Eastaugh-Waring, Steve³; Bannister, Gordon³; Learmonth, Ian²

Source: Acta Orthopaedica, Volume 80, Number 2, April 2009 , pp. 150-154(5)

Publisher: Informa Healthcare

Abstract:

Background and purpose One of the greatest problems of revision hip arthroplasty is dealing with lost bone stock. Good results have been obtained with impaction grafting of allograft bone. However, there have been problems of infection, reproducibility, antigenicity, stability, availability of bone, and cost. Thus, alternatives to allograft have been sought. BoneSave is a biphasic porous ceramic specifically designed for use in impaction grafting. BoneSave is 80% tricalcium phosphate and 20% hydroxyapatite. Previous in vitro and in vivo studies have yielded good results using mixtures of allograft and BoneSave, when compared with allograft alone. This study is the first reported human clinical trial of BoneSave in impaction grafting. Methods We performed a single-institution, multi-surgeon, prospective cohort study. 43 consecutive patients underwent revision hip arthroplasty using BoneSave and allograft to restore missing bone in the acetabulum. 9 patients had cemented acetabular components implanted and 34 uncemented. 10 patients had cemented femoral components implanted and 1 had an uncemented femoral component. 32 patients did not have their femoral component revised. Results No patients were lost to follow-up. At a mean follow-up of 24 (11-48) months, there were no re-revisions and there was no implant migration. 1 acetabular component had confluent lucent lines at the implant-graft interface. Complications were rare (1 fracture, 2 dislocations). Patient satisfaction with the procedure was high. Interpretation Short-term results indicate that impaction grafting of BoneSave and allograft is an effective method of dealing with loss of bone stock at revision hip surgery.

Document Type: Research article

DOI: http://dx.doi.org/10.3109/17453670902884767

Affiliations: 1: Department of Academic Orthopaedics, University of Bristol, BIRC Research Labs, Avon Orthopaedic Centre, Bristol,Department of Orthopaedics, North Bristol NHS Trust, Avon Orthopaedic Centre, Southmead Hospital, Bristol 2: Department of Academic Orthopaedics, University of Bristol, BIRC Research Labs, Avon Orthopaedic Centre, Bristol 3: Department of Orthopaedics, North Bristol NHS Trust, Avon Orthopaedic Centre, Southmead Hospital, Bristol

Publication date: 2009-04-01

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