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Laminectomy with Laminar Reconstruction for Resection of Intradural Tumors at the Thoracolumbar Junction: A Technical Note

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WORLD NEUROSURGERY
卷 179, 期 -, 页码 104-108

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ELSEVIER SCIENCE INC
DOI: 10.1016/J.WNEU.2023.08.058

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Extramedullary tumors; Intradural tumors; Laminoplasty; Primary spinal cord tumors

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The new laminar reconstruction technique combines laminectomy with reconstruction to effectively treat primary spinal cord tumors, providing maximum exposure and manipulation of the tumor while preserving spinal biomechanics.
OBJECTIVE: To introduce a new laminar reconstruction technique to treat primary spinal cord tumors. -METHODS: Laminectomy and laminoplasty techniques have been used to treat intradural spinal tumors. The advantage of laminectomy is its superior exposure of the spinal cord, whereas the advantage of laminoplasty is the reconstruction of the dorsal roof of the spine. In this technical note, we present a technique that combines a full laminectomy to maximize exposure, with a reconstructive technique to repair the lamina. This technique restores the posterior ligamentous complex to preserve spinal biomechanics. -RESULTS: In this illustrative case, a 55-year-old woman with severe back pain radiating to the right lower ex-tremity was found to have an intradural tumor at the T12-L1 spinal level. Given the transitional level of the spine and potentially high biomechanical stresses on the posterior support structures, we used a T12 laminectomy to resect the tumor, followed by reconstruction using miniplates. The patient tolerated the surgery well, without any complica-tions. She was discharged home and was doing well dur -ing the 3 months follow-up visit. Appropriate patient consent was obtained. -CONCLUSIONS: Laminectomy and laminar reconstruc-tion allow maximum visualization and manipulation of the tumor, followed by restoration of the dorsal roof of the spinal ring, and is an effective technique for treating spinal cord tumors.

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