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Effect of Bone Graft Type on Implant Failure Following Endoscopic Anterior Scoliosis Correction

Cordell-Smith, James A., Adam, Clayton J., Izatt, Maree T., Labrom, Robert D., & Askin, Geoffrey N. (2008) Effect of Bone Graft Type on Implant Failure Following Endoscopic Anterior Scoliosis Correction. In Williamson, Owen (Ed.) Annual Scientific Meeting of the Spine Society of Australia 2008, 18-20 April 2008, Adelaide, Australia.

Abstract

The development of non-union following instrumented scoliosis correction may predispose to pseudarthrosis and subsequent implant failure. Although non-union is often multifactorial, it is widely accepted that bone graft of adequate quality and quantity is fundamental to achieve solid fusion. Traditionally, autologous rib graft or iliac crest harvest has been utilised for endoscopic anterior instrumented scoliosis surgery. However, these techniques increase the operative duration and cause donor site morbidity, both of which may lengthen hospital stay. Alternatives such as allograft bone and bone morphogenetic proteins have gained more widespread use and may improve fusion rates although this remains controversial. The aim of this study was to compare two-year postoperative fusion rates for a series of patients who underwent endoscopic anterior instrumentation for thoracic scoliosis utilising various bone graft types. This study demonstrated significantly better rates of thoracic fusion in endoscopic anterior instrumented scoliosis correction using mulched femoral allograft compared with autologous rib heads and iliac crest graft. This could be partly explained by the difficulty obtaining sufficient quantities of autologous graft. The lower fusion rate seen in the autologous graft group appear to predispose to rod fracture although the longer-term clinical consequence of implant failure in this group is not clear and warrants further study.

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ID Code: 13869
Item Type: Conference Paper
Additional URLs:
Keywords: fusion, pseudarthrosis, idiopathic scoliosis, endoscopic anterior instrumented scoliosis surgery, computed tomography
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomechanical Engineering (090302)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2008 (please consult author)
Deposited On: 25 Jun 2008
Last Modified: 11 Aug 2011 01:22

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