Ultrasound-guided Facet Joint Block In Relief Residual Pain After Percutaneous Kyphoplasty

Objective To observe the feasibility and effectiveness of ultrasound-guided facet joint block for relief residual pain after percutaneous kyphoplasty(PKP).Method A total of 26 patients who suffered from pain after PKP were randomly divided into experimental group(n=16)and control group(n=10).According to different tenderness points,experimental group received ultrasound-guided facet joint space injection of 2 ml analgesic combination,and control group was injected with the same amount of saline.The vasual analogue scale(VAS)scores and oswestry disability index(ODI)scores were observed before injection,and 10 min,1 day and 2 weeks after injection.The pain relief rate of patients were observed at the same time points.Result There were no statistical significant difference of preoperative VAS,ODI scoresbetween experimental group and control group(P>0.05);VAS and ODI scores in 1 day and 2 weeks after operation in experimental group were lower than that of preoperation in control group(all P<0.05).Compared with preoperation,VAS and ODI scores at each time point after operation had no statistical significance in control group(all P>0.05).Pain relief rates of postoperative 10 min,1 days and 2 weeks in experimental group were higher than that of control group(all P<0.05).No serious complications occurred after operation.Conclusion Ultrasound-guided facet joint block has obvious effect for residual pain after PKP and has a good application prospect in the diagnosis and treatment of low back residual pain.