Journal of spinal disorders & techniques
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This is a biomechanical study using human cadaveric lumbar spine. ⋯ Transsacral rod fixation provides strong ligamentotaxis due to intact annulus. Standalone transsacral rod is able to reduce ROM significantly and achieve indirect decompression by distracting L5-S1 disc space. However, additional posterior fixation, such as facet screws or pedicle screws, is required to achieve better construct stability for successful fusion.
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J Spinal Disord Tech · Feb 2008
Case ReportsIntraoperative localization of thoracic spine level with preoperative percutaneous placement of intravertebral polymethylmethacrylate.
To evaluate the safety and utility of preoperative vertebroplasty for intraoperative localization of thoracic spinal levels. ⋯ Preoperative placement of PMMA into thoracic vertebral bodies using standard vertebroplasty technique provides a safe, efficient, and reliable method of localizing thoracic spine levels intraoperatively. Such procedures can be performed in the outpatient setting and can be associated with extremely low morbidity when done by experienced practitioners. This procedure should be reserved for patients in whom a surgeon anticipates difficulty using standard radiographs or fluoroscopy to localize thoracic spinal levels intraoperatively.
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J Spinal Disord Tech · Feb 2008
Anterior lumbar interbody fusion for lumbosacral junction in steep sacral slope.
Retrospective study of surgical technique and clinical outcome. ⋯ In selected cases, a steep sacral slope may not be an absolute contraindication of ALIF. Moreover, the C-arm-guided reduction and cage insertion method is a reliable way of treating spondylolisthesis in those with a steep sacral slope.
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J Spinal Disord Tech · Feb 2008
Pedicle screw placement with a free hand technique in thoracolumbar spine: is it safe?
Computerized tomography (CT) analysis of in vivo pedicle screw placement to determine their exact position in relation to the pedicle in thoracolumbar region (T10-L3). ⋯ Pedicle screw placement with a free hand technique after reviewing preoperative imaging seems to be accurate, reliable, and safe adjunct for the placement of thoracolumbar spine screws.
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J Spinal Disord Tech · Feb 2008
Case ReportsThoracic myelopathy due to ossification of the yellow ligament in young baseball pitchers.
Case series. ⋯ Patients had no other factors influencing the development of OYL and the lesions were localized at the left side in the thoracolumbar junction, indicating that repeated, localized rotatory mechanical stress caused by the pitching motion probably influenced the development of OYL in these young baseball pitchers.