Journal of spinal disorders & techniques
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J Spinal Disord Tech · Jul 2009
Diagnostic features of sciatica without lumbar nerve root compression.
Retrospective case series review of patients showing sciatica without radiographic evidence of nerve root compression. ⋯ Piriformis syndrome and gynecologic conditions account for most cases of extralumbar spinal sciatica. Female sex, right side involvement, and overlapping sensory disturbance are suggestive of extralumbar spinal sciatica associated with gynecologic conditions.
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J Spinal Disord Tech · Jul 2009
Timing of vertebral registration in three-dimensional, fluoroscopy-based, image-guided spinal surgery.
The timing of vertebral registration using isocentric fluoroscopy was recorded in 20 consecutive patients undergoing image-guided spinal surgery. ⋯ The use of the isocentric C-arm for vertebral registration in image-guided spinal surgery can be performed in an efficient manner. In this study, multiple vertebral levels of registration could be accomplished in less than 9 minutes with minimal to no radiation exposure to the surgeon and operating room personnel.
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J Spinal Disord Tech · Jun 2009
Case ReportsRetrieval analysis of a ProDisc-L total disc replacement.
We retrieved a functioning ProDisc-L total disc replacement and associated tissues at 16 months of service life. ⋯ A larger series of implant retrievals will be needed to investigate possible wear and the biologic response to increased particle generation.
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J Spinal Disord Tech · Jun 2009
Randomized Controlled TrialCoronal and sagittal plane correction in patients with Lenke 1 adolescent idiopathic scoliosis: a comparison of consecutive versus interval pedicle screw placement.
Prospective clinical study. ⋯ Interval pedicle screw placement constructs seem to be equally effective as consecutive constructs for facilitating curve correction in patients with Lenke 1 AIS.