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>INVESTIGATION OF CHANGES IN SEGMENTAL KINEMATICS AND LOAD DISTRIBUTION ON COMPONENTS OF LUMBOSACRAL FIXATION AFTER ADDITION OF ILIAC SCREW
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INVESTIGATION OF CHANGES IN SEGMENTAL KINEMATICS AND LOAD DISTRIBUTION ON COMPONENTS OF LUMBOSACRAL FIXATION AFTER ADDITION OF ILIAC SCREW
Spinal fusion technique is the common traditional surgical intervention for treatment of various spinal disorders. Long lumbosacral fixation is often recommended for adjustment of lumbar scoliosis [1]. However when extending a long fusion system down to the sacrum, the lumbosacral junction is a common site of implant problem and pseudarthrosis [2,3]. Iliac screws are added to the lumbo-sacral fixation for constraining the motion across sacro-iliac joint and also decreasing the failure risk of sacral screws. However the contribution of Iliac screws in changes in segmental kinematics as well as alteration in load distribution on components of fixation construct is not well understood. We used finite element (FE) technique to evaluate the biomechanical effect of Iliac screw on components of lumbo-sacral fixation construct.
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