颈后路半椎板切除管腔扩大术治疗颈椎椎管狭窄症

DECOMPRESSIVE UNILATERAL LAMINECTOMY THROUGH POSTERIOR APPROACH FOR CERVICAL SPINAL STENOSIS

本文报告由于颈椎后纵韧带骨化、多个椎间盘退变突出及单纯性椎管狭窄等引起的颈椎管狭窄伴有脊髓症状25例,经施行颈后路半椎板切除管腔扩大术,能扩大原椎管腔面积1/2,颈椎管腔矢状径延长2.5mm,达到彻底减压,解除对脊髓的挤压或压迫,以及维持颈椎术后在力学上的稳定性。25例术前脊髓均有不同程度的受压,术后均获得不同程度的满意疗效,有效率为87.5％。

The cervical spinal stenosis operated on was due to ossification of posterior longitudinal ligament in 15 cases, multiple cervical intervertebral disc degenerative protrusion in 5, primary cervical canal stenosis in 2 and traumatic cervical canal stenosis in 3. They had symptoms of compression of cervical cord: incomplete paralysis of four limbs in 13 cases and incomplete paralysis of lower limbs in 12. The canals were enlarged by unilateral laminectomy through posterior approach. This operation could maintain the mechanical stability of cervical spine.Twenty-three patients were followed up for an average period of 19.5 months. All had improvement in limb strength, walking stability and paresthesia.