Applied Research Of Minimally Invasive And Radiation Technology On Vertebroplasty Assisted By Computer Navigation Technique

Objective:To study the applied research of minimally invasive and radiation technology on vertebroplasty assisted by computer navigation to treat osteoporotic vertebral compression fracture.Methods:Through the development of pedicle three-dimensional surface locator percutaneous puncture navigation dynamic reference frame and navigation guidance for vertebral puncture needle, and the introduction of two technologies such as double lead plate protection and hydraulic bone cement conveying, achieving the aim of clinical application of minimally invasive and radiation technology on vertebroplasty assisted by computer navigation to treat osteoporotic vertebral compression fracture. A clinical study was performed in which60patients suffering painful osteoporotic vertebral compression fractures. They were randomly divided into two groups, navigation group and normal group. Statistical contrastive analysis was proceeded in visual analog scale(VAS score) and roland-morris disability questionnaire (RDQ socre) of preoperative and postoperative、mean operating time、 surgeon exposed time、pedicle puncture success rate and bone cement filling rate.To determine leakage of bone cement when undergoing surgery and through postoperatively X ray film review to understand the distribution of the bone cement.Results:The author followed up for12months, there were no obvious complications and. no vertebral body collapse,2cases of postoperative patients die because of medical disease. The puncture success rate of group A was100%, and group B’s rate was86.7%, in2groups of patients there were all not bone cement leakage into the spinal canal or pan in the process of bone cement injection, but But in2cases of group A and group B with3cases there were bone cement leakaging into the vertebral venous blood vessels. The two groups had statistically significant difference in VAS score and RDQ score between preoperation and postoperation(P<0.05), but no statistically significant difference between the two groups(P>0.05) The mean operating time of group A was (32.30±4.94) min, the surgeon exposed time was (0.72±0.37) min, the mean operating time of group B was (37.37±2.47) min, the surgeon exposed time was (2.44±1.69) min, there were statistically significant difference(P<0.01) in mean operating time and surgeon exposed time.Conclusion:With the use of improved vertebroplasty by minimally invasive and radiation technology assisted by computer navigation to treat osteoporotic vertebral compression fracture, the operation safety was improved. The vertebral puncture success rate and the accuracy were higher than C arm suffering vertebralplasty, and the shorter intra-operative fluoroscopy times、surgeon exposed times are convincing.