• Luqiang Qu, Zhonghua Li, Xinwei Wang, Lijie Yuan, and Chan Li.
• Department of Spine Surgery, Taicang Affiliated Hospital of Soochow University, The First People's Hospital of Taicang, Taicang, Jiangsu, China.
• World Neurosurg. 2023 Dec 1; 180: 112122112-122.

PurposeThe study aims to evaluate the impact of procedural variations in single-door laminoplasty on axial symptoms (AS) and neurologic outcomes.MethodsA comprehensive literature search was conducted across PubMed, EMBASE, and the Cochrane Library, adhering to specific inclusion criteria. We extracted data on the prevalence of AS in both the modified and conventional laminoplasty groups from the selected studies. Neurologic outcomes were assessed using the Japanese Orthopedic Association (JOA) recovery rate, which was subsequently converted to Hedge's g for analysis. Forest plots were generated to visualize the effect sizes, and publication bias was assessed using both funnel plots and Egger's test.ResultsFourteen studies comprising 1201 patients were included in this meta-analysis focused on AS. The aggregated SMD was -0.891 with a 95% CI of -1.146 to -0.631 (P < 0.01), denoting a statistically significant reduction in AS in the modified laminoplasty group compared with the conventional approach. Of the 14 studies, 10, encompassing 898 patients, contributed data for JOA recovery rate analysis. The overall effect size was 0.089, with a 95% CI ranging from -0.090 to 0.267, and a P value of 0.2901, indicating no significant difference in neurologic outcomes between the 2 techniques. No evidence of publication bias was detected.ConclusionsThis meta-analysis demonstrates that modified laminoplasty is associated with a significant reduction in the incidence and severity of axial symptoms, without compromising neurologic functionality.Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.

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