Chinese Journal of Tissue Engineering Research ›› 2017, Vol. 21 ›› Issue (3): 485-492.doi: 10.3969/j.issn.2095-4344.2017.03.028

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Meta-analysis of posterior laminectomy and instrumented fusion versus laminoplasty in treatment of multilevel cervical spondylotic myelopathy

Zha Yuan-yu, Yang Yang, Chen Shu-zhen, Wei Ren-xiong, Zhang Shu-wei, Jin Wei   

  1. Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei Province, China
  • Online:2017-01-28 Published:2017-03-14
  • Contact: Jin Wei, M.D., Associate professor, Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei Province, China
  • About author:Zha Yuan-yu, Studying for master’s degree, Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei Province, China

Abstract:

BACKGROUND: Many studies concern the comparison of posterior laminectomy and instrumented fusion and posterior laminoplasty for multilevel cervical spondylotic myelopathy, but the sample size of many studies has limitations. There is lack of objective evaluation on advantages and disadvantages of two surgical methods.

OBJECTIVE: To compare the efficacy and safety of posterior laminectomy and instrumented fusion and laminoplasty in the treatment of multilevel cervical spondylotic myelopathy.
METHODS: A systematic search of all the studies published was conducted on the PubMed, Cochrane Central, EMbase, the ISI Web of Knowledge Database, CMB, CNKI, VIP and Wanfang databases. Randomized and non-randomized controlled trials that compared between posterior laminectomy and instrumented fusion and laminoplasty for multilevel cervical spondylotic myelopathy were identified. Meta-analyses were performed in postoperative Japanese Orthopaedic Association scores, cervical range of motion, cervical curvature index, incidence of C5 nerve root paralysis and incidence of axial symptoms.
RESULTS AND CONCLUSION: (1) Fourteen studies involving 1 024 patients were included. Among the patients, 519 underwent laminectomy and instrumented fusion and 505 underwent laminoplasty. (2) The results of the meta-analysis indicated that, compared with laminectomy and instrumented fusion group, laminoplasty group had advantages of a lower incidence of C5 palsy [RR=2.24, 95%CI(1.33,3.75), Z=3.05, P < 0.05] and small degree of cervical rotation injury [SMD=-0.71, 95%CI(-2.21,-1.2), Z=6.63, P < 0.05]. However, the two groups had no statistical difference in postoperative Japanese Orthopaedic Association score, cervical curvature index and the incidence of axial symptoms. (3) These results suggested that both laminectomy and instrumented fusion and laminoplasty were demonstrated to be effective for multilevel cervical spondylotic myelopathy. Laminoplasty had obvious advantages of decreasing the degree of cervical rotation injury and lowering incidence of C5 palsy. However, in the process of clinical diagnosis and treatment, the patient’s condition should be combined. The long-term clinical efficacy of the technology needs more clinical work to confirm. 

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

Key words: Cervical spondylotic, Meta-Analysis, Tissue Engineering

CLC Number: