Comparative Study On The Efficacy Of ACDF Via The Micro-invasive Spinal Tubular System And Conventional ACDF In The Treatment Of Single-segment Cervical Spondylosis

Objective:The purpose of this study was to compare the therapeutic effect of ACDF via the micro-invasive spinal tubular system and conventional ACDF in the treatment of single segment cervical spondylosis and the incidence of complications during the perioperative period.Methods:This study retrospectively analyzed the general data of 42 patients undergoing single-segment cervical spondylosis from January 2016 to January 2017 in the Shanxi Da yi Hospital Affiliated to Shanxi Medical University.There were 27 patients in the conventional group,15 males and 12 females,Age ranged from 39 to 73（57.1±8.7）years of age;lesion segment:1 case of C_3-4,10 cases of C_4-5,12 case of C_5-6,4 cases of C_6-7;15cases of tubular group,8 males and 7 females,Age ranged from 43 to 78（55.9±8.8）years of age;lesion segments:1 case of C_3-4,4 cases of C_4-5,8 cases of C_5-6,2 cases of C_6-7;The perioperative observation indexes（incision length,operation time,intraoperative blood loss,length of hospital stay）,clinical efficacy（preoperative and postoperative 3 months,6 months JOA score of cervical spine and Odom score）,and perioperative complications（hoarseness,dysphagia,postoperative hematoma,recurrent laryngeal nerve paralysis,esophageal perforation,neurological complications,incision infection and other complications）of the two groups were counted.Results:There was no statistical difference in preoperative general data such as gender,age,surgical level,and preoperative JOA score between the two groups（P>0.05）;the perioperative indicators,including the blood loss and incision length,were shorter in the tubular group than in the conventional group.（P<0.05）,the difference was statistically significant;the operative time in the conventional group was less than the tubular group（P<0.05）,the difference was statistically significant;the hospital stay in the conventional group was greater than the tubular group（P>0.05）,the difference was not statistically significant;In terms of efficacy,JOA scores in the two groups were significantly higher than those before surgery（P<0.05）,indicating that the neurological function of the patients recovered well;There was no significant difference in JOA score between the two groups after 3 months and last follow-up（P>0.05）.There was no statistical difference in the Odom scale between the two surgical procedures.In terms of complications,10patients（37%）had dysphagia in the conventional group and 1（6.7%）in the tubular group.The difference between the two groups was statistically significant（P=0.033<0.05）.No other complications occurred.Conclusion:Both ACDF via the micro-invasive spinal tubular system and conventional ACDF for the treatment of single-segment cervical spondylosis have good clinical results,and there is no statistical difference in clinical efficacy.Compared with conventional ACDF,ACDF via micro-invasive spinal tubular system as a new technique has the advantages of less trauma,fewer complications and so on.