Zhicai Shi

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Between March 2003 and September 2007, 170 consecutive patients with lumbar degenerative disease were studied retrospectively. Eighty patients underwent posterior lumbar interbody fusion (PLIF group) with pedicle screw (PS) fixation, and 82 patients underwent posterolateral fusion (PLF group) with PS fixation. Eight patients were lost to follow-up. The(More)
BACKGROUND Degeneration of intervertebral disks in the lower lumbar spine is associated with significant structural alterations. Finite element model has been widely used in the study of spinal mechanical behaviors. Our study used this technique to characterize the motional influence to the double-level (L4-5 and L5-S) degeneration. METHODS AND RESULTS(More)
PURPOSE To assess and characterize the sacrum angular displacements in response to lumbar lordosis after lumbar/lumbosacral fusion. METHODS A finite element model of the lower lumbar spine-pelvis was established and used to simulate the posterior fusion at L3-L5 and L4-S1. The lordosis angle in the fusion segments was set to five different conditions with(More)
BACKGROUND Patients with spinal deformities and nerve compression due to spinal tuberculosis often require surgical intervention. The objective of this study was to assess the long-term therapeutic effectiveness of one-stage anterior debridement, bone grafting, and internal fixation for lower cervical tuberculosis with kyphosis. METHODS Twenty-one(More)
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