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Journal of Bone and Joint Surgery - British Volume, Vol 88-B, Issue 4, 460-466.
doi: 10.1302/0301-620X.88B4.16950  
Copyright © 2006 by British Editorial Society of Bone and Joint Surgery
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Treatment of avascular necrosis of the hip by a non-vascularised cortical graft

S. B. Keizer, MD, Orthopaedic Surgeon1; N. B. Kock, MD, Resident1; P. D. S. Dijkstra, MD, PhD, Orthopaedic Surgeon1; A. H. M. Taminiau, MD, PhD, Professor1; and R. G. H. H. Nelissen, MD, PhD, Professor1

1 Department of Orthopaedic Surgery, Leiden University Medical Centre, P. O. Box 9600, 2300, RC Leiden, The Netherlands.

Correspondence should be sent to Dr S. B. Keizer; e-mail: s.keizer{at}mchaaglanden.nl

This retrospective study describes the long-term results of core decompression and placement of a non-vascularised bone graft in the management of avascular necrosis of the femoral head. We treated 80 hips in 65 patients, 18 by a cortical tibial autograft and 62 by a fibular allograft. The mean age of the patients was 36 years (SD 13.2). A total of 78 hips were available for evaluation of which pre-operatively six were Ficat-Arlet stage 0, three stage I, 31 stage IIA, 16 stage IIB, 13 stage III and nine stage IV.

A total of 34 hips (44%) were revised at a mean of four years (SD 3.8). Survivorship analysis using a clinical end-point showed a survival rate of 59% five years after surgery. We found a significant difference (p = 0.002) in survivorship, when using a clinical and radiological end-point, between the two grafts, in favour of the tibial autograft. We considered this difference to be the result of the better quality and increased volume of tibial bone compared with that from the trochanteric region used with the fibular allograft.

This is a relatively simple, extra-articular and reproducible procedure. In our view core decompression, removal of the necrotic tissue and packing of the cancellous grafts into the core track are vital parts of the procedure.






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Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General