Spine
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The assessment of sacrum angular motions and stress across sacroiliac joint (SIJ) articular surfaces using finite element lumbar spine-pelvis model and simulated posterior fusion surgical procedures. ⋯ The fusion at the lumbar spine level increased motion and stresses at the SIJ. This could be a probable reason for low back pain in patients after lumbar spine fusion procedures.
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Human and bovine cadaver study in which biochemical measurements and magnetic resonance (MR) imaging of intervertebral discs were correlated. ⋯ T2 relaxation times of intervertebral disc anulus fibrosus and nucleus pulposus correlate strongly with water content and weakly with PG content.