Clinical Efficacy And Imaging Contrast Of Bryan And Mobi-C Artificial Cervical Disc Replacement

Objective:By collecting and evaluating the clinical follow-up indexes of Bryan and Mobi-c artificial cervical disc replacement,measuring the relevant postoperative radiographic data,and comparing the data,we discussed two kinds of prostheses in artificial cervical disc replacement for the treatment of cervical spondylotic myelopathy The differences in the efficacy of clinical symptoms and postoperative axial pain,as well as the imaging differences in cervical lordosis,displacement and proximal segment activity,and adjacent segment degeneration were studied.Methods:By retrospective study the 36 patients with cervical Spondylotic myelopathy(male 20,female 18,average age 53.6 years,18 cases of Bryan Disc,18 cases of Mobi-C),who took the prosthesis implantation therapy of single segment artificial cervical disc replacement in Dongzhimen Hospital,Beijing University of Chinese Medicine from January 2014 to January 2016.We collected the clinical data and postoperative imaging data at the early postoperative follow-up(1,3,and 6 months after the treatment)and long-term follow-up(12,24 months after the treatment).Assessing the clinical efficacy,JOA and NDI scoring system.Analyzing the cervical lordosis,functional spinal unit curvature,replacement and adjacent segment activity,functional spinal unit activity and the incidence of adjacent segment degeneration by measuring the imaging data.SPSS22.0 software was used for statistical analysis.Results:After 2 years follow-up,the JOA scores of Bryan group and Mobi-C group were increased from 11.69±2.81,11.74±3.98 to 15.48±2.31,11.74±3.98,the NDI scores decreased from 37.24±7.09,38.18±7.12 to 25.35±6.81,25.65±7.21,There is significant difference in statistical analysis.But there is no significant difference between the two groups(p>0.05).The results of preoperative and postoperative follow-up showed significant difference(p<0.05),and the early and late follow-up results were compared.Statistical analysis showed significant difference(p<0.05),but there was no significant difference between the two groups(p>0.05).Early postoperative follow-up,cervical mobility,replacement segment and impending.The range of motion of proximal segment and spinal functional unit were lower than that of preoperative,and the difference was statistically significant.At the last follow-up,the incidence of as in Bryan group was 22.22%and 16.67%in Mobi-C group.Conclusion:There was no significant difference in clinical treatment effect,cervical curvature,motion and other imaging evaluation between the two kinds of disc,but with age,because of the different internal stress of the two kinds of prosthesis.Whether there is any difference between the two groups in the occurrence of ectopic ossification and adjacent degenerative changes,the need for a longer follow-up.ACDR represents a new concept of non-fusion,and whether it can bring better results still needs a longer follow-up to verify.