Long-segmental cervical ossification of posterior longitudinal ligament: comparison of posterior laminectomy implant fixation and anterior corpectomy decompression

doi:10.3969/j.issn.2095-4344.2014.53.014

Abstract

Abstract:

BACKGROUND: Anterior surgery for treatment of long-segmental cervical ossification of the posterior longitudinal ligament is consisted of direct decompression and removal of the compressed osteophytes and ossified posterior longitudinal ligament, anterior cervical discectomy can achieve complete decompression, plate and titanium net placement produces anterior approach support, which is conductive to restore physiological curvature of cervical vertebra. As for multi-segmental ossification (> 3), anterior surgery cannot resect the ossified tissue, the decompression cannot maintain cervical curvature and stability, so posterior approach is suggested for surgeries.
OBJECTIVE: To compare the effects of posterior laminectomy implant fixation and anterior corpectomy decompression for repair of long segmental cervical ossification of posterior longitudinal ligament.
METHODS: Thirty-four patients with long segmental cervical ossification of posterior longitudinal ligament were recruited from Qinhuangdao Municipal Third Hospital from September 2011 to September 2013, and were treated with anterior corpectomy decompression (control group) and posterior laminectomy bone grafting and internal fixation (observation group). All patients were detected by cervical X-ray, CT and MR examinations prior to treatment, and re-checked at 7 days after treatment. The vertebral canal sagittal diameter, cervical curvature, spinal stenosis rate, ossification type, ossification range (segments), and spinal compression rate were observed. JOA scores were evaluated and improvement of neurological function was assessed.
RESULTS AND CONCLUSION: The imaging examination results showed that, canal sagittal diameter and preoperative cervical curvature showed no significant difference between the two groups (P > 0.05), but cervical curvature and spinal cord compression rate in the observation group showed significant differences compared with the control group after treatment (P < 0.05). Before operation, no statistically significant differences were found in the JOA scores of the two groups (P > 0.05); after treatment, the JOA scores, improvement rate and excellent rate showed significant differences (P < 0.05), the observation group was better than the control group. There was no significant difference in postoperative complication rate between the two groups (P > 0.05). Compared with anterior corpectomy decompression, posterior laminectomy bone graft and internal fixation can obtain good effects in the treatment of long segmental cervical ossification of posterior longitudinal ligament.

中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程

全文链接：

Key words: cervical vertebra, internal fixators, ossification, posterior longitudinal ligament, bone grafts

CLC Number:

R318

Shi Yun-zhi, Liu Quan. Long-segmental cervical ossification of posterior longitudinal ligament: comparison of posterior laminectomy implant fixation and anterior corpectomy decompression[J]. Chinese Journal of Tissue Engineering Research, 2014, 18(53): 8601-8606.

Figures/Tables 1

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