Objective To analyze the risk factors associated with residual low back pain after percutaneous vertebroplasty of os-teoporotic lumbar compression fractures.Methods One hundred and fifty cases of osteoporotic lumbar compression fractures treated by percutaneous vertebroplasty from July 2019 to July 2022 were enrolled,and they were divided into two groups accord-ing to the surgical efficacy,including 136 cases in the satisfactory group(pain VAS score＜3 points at one month postopera-tively)and 14 cases in the unsatisfactory group(pain VAS score≥3 points at one month postoperatively).The univariate and mul-tivariate logistic regression analysis were used to identify the risk factors for residual low back pain after PVP.Results All pa-tients were followed up for 1-2 years,with an average of 1.2 years.There were 14 cases of postoperative residual low back pain in 150 cases,and the incidence rate of residual low back pain was 9.33％.Univariate analysis showed that there was no signifi-cant difference in gender and age between the satisfactory and unsatisfactory groups(P＞0.05),but there were significant differ-ences in body mass index,bone mineral density,preoperative lumbar back myofascial injury,preoperative intravertebral fissure sign,and whether there were spinal degenerative diseases,as well as the amount of cement injected,the diffusion of cement,the degree of compression correction of the anterior edge of the vertebral body,and the degree of correction of kyphosis angle be-tween the two groups(P＜0.05).Multivariate Logistic regression analysis showed that low bone mineral density before surgery,low back myofascial injury,combined with intravertebral fissures,spinal degenerative diseases and unsatisfactory diffusion of bone cement,and poor correction of kyphotic deformity were independent risk factors for residual low back pain after percutane-ous vertebroplasty of osteoporotic lumbar vertebroplasty.Conclusion Residual low back pain after percutaneous vertebro-plasty of osteoporotic lumbar compression fracture is associated with low bone mineral density before surgery,low back myofas-cial injury,combined with intravertebral fissure sign,spinal degenerative diseases and unsatisfactory diffusion of bone cement,and poor correction of kyphotic deformity.
Lumbar compression fractureOsteoporosisPercutaneous vertebroplastyResidual low back painRisk factors
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