后路减压侧块螺钉置入内固定治疗颈椎多节段后纵韧带钙化：5年36例资料回顾

背景：后路减压侧块螺钉固定能够解除骨化灶对脊髓、神经根的压迫，扩大椎管矢状径，同时重建该区域的稳定。 目的：验证应用后路减压、侧块螺钉置入内固定治疗颈椎多节段后纵韧带骨化症5年36例资料的临床疗效。 方法：36例患者为3个节段9例，4个节段20例，5个节段7例。 结果与结论：随访6~26个月，JOA评分由内固定前平均5.2分提高到 10.2分。颈椎生理曲度由内固定前平均(3.6±0.5) mm提高到内固定后(9.1±0.7) mm，内固定物无松动。提示此方法治疗既能后方直接减压又能前方间接置入减压，既能恢复颈椎生理曲度，又能提供坚强的内固定效应。

Multi-segmental cervical ossification of posterior longitudinal ligament treated by posterior decompression and internal fixation of cervical lateral mass screw

BACKGROUND: Posterior decompression and lateral mass screw fixation can relieve the compression of ossification foci to the spinal cord and nerve root, expand the sagittal diameter of the the spinal canal. Meanwhile, the stable reconstruction is realized. OBJECTIVE: To verify the clinical efficacy of posterior decompression and internal fixation of cervical lateral mass screw for multi-segmental cervical ossification of posterior longitudinal ligament (OPLL). METHODS: Thirty-six patients with multi-segmental OPLL were treated by cervical posterior decompression and internal fixation of cervical lateral mass screw. Among these patients, 3 cervical segments were involved in 9 cases, 4 in 20 cases, and 5 in 7 cases. RESULTS AND CONCLUSION: All the cases were followed up for 6 months to 26 months. The mean recovery rate based on the scoring system of the Japanese Orthopaedic Association JOA was 51% (from 5.2 score to 10.2 score). The mean cervical physiological curvature was from (3.6±0.5) mm preoperatively to (9.1±0.7) mm postoperatively. No severe complications such as injuries of vertebral artery, nerve root and spinal cord or aggravation of spinal cord injury occurred. The satisfactory decompression of spinal cothe rd can be achieved by total laminectomy for multi-segmental OPLL and the internal fixation cervical lateral mass screw can perfectly reconstruct and maintain the cervical stability.