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Cervical Laminectomy 颈椎椎板切除术 A posterior cervical laminectomy is a surgical procedure designed to relieve pressure on the spinal cord caused by spinal stenosis. 颈椎后路椎板切除术被设计用于解除颈椎管狭窄导致的脊髓压迫。 Cervical spinal stenosis is a narrowing of the spinal canal that can compress the spinal cord and/or surrounding nerve roots. 颈椎管狭窄症是颈椎的椎管变窄压迫脊髓或周围神经根。 This narrowing can be caused by degenerative changes in the cervical spine, or neck. 这种狭窄可由颈椎的退变引起。 In a laminectomy surgery, a three- to four-inch vertical incision is made along the midline of the neck. 在椎板切除术中，先在颈后正中作一3～4英寸长的纵切口。 The paraspinal muscles are stripped away from the spinous processes, then moved out of the way with retractors. 从棘突上剥离椎旁肌，并用牵开器牵开。 A trough is cut on both sides of the affected lamina, just before it meets the adjacent facet joints, using a rotating wheel instrument called a high-speed burr. 在受累椎板两侧刚好与关节突关节相毗邻处，使用一种称为高速磨钻的转轮样装置开槽。 The spinous process and lamina are removed as a single unit that resembles a lobster's tail. The removal procedure may repeat if more than one vertebra is involved in the spinal compression. 棘突和椎板作为一个整体被移除，看似龙虾的尾巴。如果脊髓受压不止一个椎节，需要重复上述切除的步骤。 With the lamina and spinous process removed, the spinal cord floats back into the spinal canal and has more room to heal. 当椎板和棘突去除后，脊髓向后漂移，椎管空间扩大，有利于脊髓的恢复。 In some cases, a spinal fusion may be performed after the laminectomy. 有些病例，在椎板切除术后需要进行脊柱融合术。 In a cervical spinal fusion, two or more of the affected vertebrae are joined together into a single unit using a bone graft and possibly a supporting metal plate and screws. 在进行颈椎融合术时，2节以上受累的椎骨通过使用骨移植材料连接成一个整体，可能会用金属板或螺钉予以支撑。 （高晨珉 转） |
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