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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXVI | Pages 65 - 65
1 Jun 2012
FINITE ELEMENT INVESTIGATION OF THE EFFECT OF SPINA BIFIDA ON LOADING OF THE VERTEBRAL ISTHMUS
Quah C Yeoman MS Cizinauskas A Cooper K König MA McNally D Boszczyk BM
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Introduction

Lumbar spondylolysis is a fatigue fracture of the pars interarticularis and correlates with Spina Bifida Oculta (SBO) in 67%.

Hpothesis

Load is normally transferred across the arch in axial rotation. Bifid arch results in increased strain across the isthmus of the loaded inferior articular process.

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