Spine
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Experimental design. ⋯ Pain reduction after facet joint injections did not influence isokinetic muscle performance in patients with degenerative low back disorders.
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A retrospective study of 24 sacroiliac joint computed tomographic (CT) scans of patients with persistent donor site pain. ⋯ There is a high prevalence of inner table disruption in patients with persistent sacroiliac joint pain after posterior iliac bone graft harvesting. The computed tomographic scan showed that involvement of the synovial part caused more severe degenerative changes than involvement of the ligamentous part.
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Comparative Study
Segmental stability and compressive strength of posterior lumbar interbody fusion implants.
Human cadaveric study on initial segmental stability and compressive strength of posterior lumbar interbody fusion implants. ⋯ The biomechanical data did not suggest any implant construct to behave superiorly either as a stand-alone or with supplemental posterior fixation. The PLIF Allograph Spacer is biomechanically equivalent to titanium cages but is devoid of the deficiencies associated with other cage technologies. Therefore, the PLIF Allograft Spacer is a valid alternative to conventional cages.
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Review Case Reports
Idiopathic spinal cord herniation: report of three cases and review of the literature.
Three case reports and a literature review are presented. ⋯ Because idiopathic spinal cord herniation is out of the concept of "compression myelopathy," this condition may be a pitfall in the diagnosis. Idiopathic spinal cord herniation should be recognized as one of the treatable causes for thoracic myelopathy.
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A longitudinal cohort study of patients with acute, work-related low back pain undergoing physical therapy treatment. ⋯ Because the nonorganic tests are purported to serve as screening tests, cut-off values were selected that minimized false-negative results. Even with optimal cut-off values, none of the nonorganic tests served as effective screening tools. Other screening tools may prove more effective for the early identification of patients at increased risk for delay in returning to work after an episode of acute low back pain.