• Tiantian Chen, Xun Zhang, Fanchao Meng, Tingxin Zhang, Yibo Zhao, Jinglong Yan, Gongping Xu, and Wei Zhao.
• Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
• World Neurosurg. 2021 Nov 1; 155: 82-93.

AbstractThis study aimed to evaluate the superiority of open-door versus French-door posterior cervical laminoplasty in the treatment of multisegmental cervical spondylotic myelopathy by comparing the intraoperative parameters and clinical and radiologic outcomes of these 2 procedures. PubMed, Embase, Cochrane Library, Web of Science, China National Knowledge Infrastructure, the Wanfang database, the Weipu database, and China Biology Medicine disk were searched. Articles were retrieved from database establishment through May 22, 2020. Data analysis was carried out on the retrieved articles using RevMan 5.3 software. This meta-analysis included 14 studies involving 1010 patients, among which 6 were randomized controlled trials and 8 were retrospective analyses. Comparing the open-door and French-door groups, no statistically significant differences were found in operative time (weighted mean difference [WMD] = -4.47, 95% CI [-17.85, 8.92], P = 0.51), postoperative Japanese Orthopaedic Association score (WMD= -0.24, 95% CI [-0.87, 0.38], P = 0.45), recovery rate (WMD= -0.58, 95% CI [-3.61, 2.45], P = 0.71), postoperative cervical lordosis (WMD= -0.15, 95% CI [-1.93, 1.63], P = 0.87), cervical range of motion (WMD = -3.04, 95% CI [-8.68, 2.59], P = 0.29), sagittal diameter of the spinal canal (WMD = -0.24, 95% CI [-0.54, 0.07], P = 0.13), incidence of C5 palsy (OR = 1.78, 95% CI [0.64, 4.93], P = 0.27), or incidence of cerebrospinal fluid leakage (OR = 1.51, 95% CI [0.48, 4.71], P = 0.48). However, the French-door group was associated with less intraoperative bleeding (WMD = 54.96, 95% CI [21.37, 88.55], P = 0.001) and a lower incidence of axial symptoms (OR = 2.50, 95% CI [1.32, 4.72], P = 0.005). This analysis suggests that both methods can achieve good postoperative outcomes. However, less intraoperative bleeding and a lower incidence of postoperative axial symptoms were found in the French-door group. This requires further validation and investigation in larger sample-size and well-designed randomized controlled studies.Copyright © 2021 Elsevier Inc. All rights reserved.

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