Analysis Of The Causes Of Residual Low Back Pain After PKP In Elderly Patients With Osteoportic Vertebral Compression Fractures

Objective:To analyze the causes of early residual low back pain after percutaneous kyphoplasty(PKP)surgery for elderly osteoporotic vertebral compression fractures(Osteoporotic vertebral compression fracture,OVCF).Method:A retrospective analysis of the postoperative efficacy of 95 OVCF patients who were treated in our hospital from January 2017 to December 2019.The enrolled cases were divided into 42 unilateral approach PKP combined with fluoroscopic guidance of bilateral posterior spinal nerve branches And facet joint block group(experimental group)and 53 cases of simple unilateral approach PKP group(control group).All patients were analyzed for operation time,total hospitalization cost,intraoperative fluoroscopy time,kyphotic Cobb angle,satisfaction,visual analogue scale(VAS),Oswesstry disability index(ODI).Compare the VAS scores of the experimental group and the control group before and after surgery(1d,2d,3d,2w)and the ODI scores before and after surgery,and satisfaction at discharge,and evaluate the unilateral approach PKP combined with fluoroscopic guidance The clinical effect of bilateral spinal nerve posterior branch and facet block was analyzed.The relationship between residual low back pain and facet injury after PKP in OVCF patients was analyzed.Results:There was no difference in VAS score and ODI score between the two groups before surgery(P>0.05).At the same time postoperatively,the VAS score and ODI score of the control group were higher than that of the experimental group,and there was a difference(P<0.05).Further comparison was made between the VAS score and the ODI score at two time points.The ODI score gradually decreased with time,and there was a difference(P<0.05).The satisfaction of the control group was lower than that of the experimental group(P<0.05),and the average hospitalization cost of the control group was lower than that of the experimental group(P<0.05).There was no statistical difference in Cobb angle between the two groups before operation and 1 day after operation(P>0.05).Further comparison of the Cobb angle difference between the two time points,the results showed that the Cobb angle between the two groups was less than before operation There are differences(P<0.05).There was no difference in the operation time(Z=-0.82,P=0.41)and fluoroscopy time(Z=-0.36,P=0.72)between the two groups.Conclusion:1.Unilateral approach PKP combined with fluoroscopically guided bilateral spinal nerve posterior branch and facet block surgery is better than simple unilateral PKP in early pain relief.2.Facet joint injury is one of the main causes of residual pain in the lower back after PKP in OVCF patients...