单节段前路椎体次全切钛网植骨融合术后颈椎三维活动度的临床观察

目的:研究脊髓型颈椎病患者接受单节段前路椎体次全切钛网植骨融合术(anterior cervical corpectomy and fusion,ACCF)术后颈椎三维活动度的变化规律。方法 :对2015年2月至2016年4月期间收治的23例脊髓型颈椎病患者进行回顾性研究,其中男11例,女12例,平均年龄(54.6±13.3)岁。患者术前经问诊、查体及影像学检查明确诊断为脊髓型颈椎病,均行单节段ACCF手术进行治疗。通过三维颈椎活动度测量仪对患者手术前后颈椎三维活动度进行比较,并采用JOA评分和VAS评分评价手术效果。结果:入组患者平均随访时间为(9.4±1.6)个月。术后3个月颈椎活动度与术前比较,除左旋转外,其他方向均明显低于术前(P0.05)。术后6个月颈椎活动度与术前比较,6个方向上的活动度与术前差异均无统计学意义(P0.05)。术后9个月颈椎活动度与术前比较,右侧屈、左旋转方向上的活动度明显高于术前(P0.05)。术后6个月颈椎活动度与术后3个月比较,后伸方向活动度明显高于术后3个月(P0.05)。术后9个月颈椎活动度与术后6个月比较,后伸、右侧屈、左侧屈及左旋转方向上的活动度明显高于术后6个月(P0.05)。术后各时间点JOA评分均明显高于术前(P0.05)。术后各时间点VAS评分均明显低于术前(P0.05)。结论:单节段ACCF术后颈椎三维活动度的变化表明,术后短期内活动度下降,之后活动度增加并优于术前水平,同时神经功能得到显著改善。但术后近期和远期活动度变化以及多节段ACCF术后活动度变化有待进一步研究。

Change of 3D cervical range of motion after single-level anterior cervical corpectomy and fusion

Objective:To study the change trend of cervical range of motion(ROM) after single-level anterior cervical corpectomy and fusion(ACCF) in treating cervical spondylotic myelopathy.Methods:The clinical data of 23 patients with cervical spondylotic myelopathy was retrospectively analyzed from February 2015 to April 2016. There were 11 males and 12 females,with an average age of (54.6±13.3) years. All the patients were diagnosed as cervical spondylotic myelopathy by interrogation,physical examination and radiology,and were treated by ACCF. The Coda motion system was applied to assess the cervical range of motion pre-and post-operation. JOA and VAS scores were used to evaluate the clinical outcomes.Results:The mean follow-up time was (9.4±1.6) months. Cervical ROM in all directions at 3 months postoperatively were significantly lower except for the left rotation(P<0.05). There was significant difference of cervical ROM in all directions between preoperative and 6 months postoperatively(P>0.05). The right lateral bending and the left rotation at 9 months postoperatively increased significantly(P<0.05). Postoperative extension at 6 months was significantly better than that of 3 months postoperatively(P<0.05). The extension,left and right lateral bending and left rotation at 9 months postoperatively were significantly better than of 6 months postoperatively(P<0.05). Postoperative JOA scores at each time points were significantly higher than that of preoperative(P<0.05) and VAS scores at each time points were significantly lower than that of preoperative(P<0.05).Conclusion:The change trend of three-dimensional cervical ROM after single-level ACCF revealed that the ROM decreased in short term,and later increased and was better than the preoperative level. Meanwhile,the neurological function improved significantly. But the short-term and long-term change trend of ROM postoperatively and the change trend of ROM after multi-level ACCF need to be further studied.