Purpose

The aim of the present study was to investigate the factors associated with axial symptom using multivariable analysis.

Methods

The authors retrospectively assessed 249 patients treated by open-door laminoplasty. The patients were classified into two groups: axial symptom and no axial symptom group. The possible factors included demographic variables (age, sex, BMI, smoking, heart disease, diabetes, preoperative neck pain, preoperative JOA scores, preoperative NDI, course of disease and pathogenesis) and surgical and radiological variables [operation time, intraoperative blood loss, collar wear time, preoperative cervical curvature, postoperative cervical curvature, T1 slope, preoperative and postoperative C2 sagittal vertical axis (C2 SVA)].

Results

The prevalence of axial symptom was 34.9% (89/249). The collar wear time, preoperative and postoperative C2 SVA were risk factors for axial symptom. A cutoff value of 22.6 mm for preoperative C2 SVA and 3.5 weeks for collar wear time predicted the development of axial symptom.

Conclusions

The longer collar wear time, larger preoperative and postoperative C2 SVA were positively correlated with the higher incidence of axial symptom.

中文翻译：

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扩大性开门椎板成形术术后轴向症状的相关因素：使用多变量分析的回顾性研究。

目的

本研究的目的是使用多变量分析研究与轴向症状相关的因素。

方法

作者回顾性评估了249例接受开门椎板成形术治疗的患者。将患者分为两组：轴向症状组和无轴向症状组。可能的因素包括人口统计学变量（年龄，性别，BMI，吸烟，心脏病，糖尿病，术前颈部疼痛，术前JOA评分，术前NDI，病程和发病机理）以及手术和放射学变量（手术时间，术中失血，项圈佩戴时间，术前颈椎弯曲度，术后颈椎弯曲度，T1斜率，术前和术后C2矢状纵轴（C2 SVA）]。

结果

轴向症状的患病率为34.9％（89/249）。项圈佩戴时间，术前和术后C2 SVA是发生轴向症状的危险因素。术前C2 SVA的临界值为22.6 mm，项圈磨损时间的临界值为3.5周，预示了轴向症状的发展。

结论

项圈佩戴时间越长，术前和术后C2 SVA越大，与轴向症状的发生率正相关。