Analysis of influencing factors of residual low back pain in thoracolumbar osteoporotic vertebral compression fracture after percutaneous kyphoplasty
Objective To analyze the influencing factors of residual lumboback pain after percutaneous kyphoplasty(PKP)for thoracolumbar osteoporotic compression fracture(OVCF).Methods A total of 97 patients with thoracolumbar OVCF undergoing elective PKP in our hospital were enrolled between January 2019 and December 2022.All patients were followed up for 1 month after surgery.According to presence or absence of residual low back pain based on score of visual analogue scale(VAS)>4 points,they were divided into a pain group(n=15)and a painless group(n=82).The VAS scores before and after operation were compared between the two groups.The clinical data of patients were collected.The influencing factors of residual low back pain were analyzed.Results At the last follow-up,15(15.46%)patients had VAS>4 points,and 82(84.54%)had VAS≤4 points.The VAS score of both groups was decreased after 12 hours,1 week and 1 month of surgery(P<0.05),and the VAS score of the painless group after 1 week and 1 month of surgery was significantly lower than that of the pain group(P<0.05).Univariate logistic regression analysis showed that body mass index,fascia injury,surgical approach,individual vertebral cement injection,cement leakage,postoperative vertebral height recovery rate and preoperative bone mineral density were associated with residual lumbago pain in thoracolumbar OVCF patients after PKP(P<0.05).Multivariate Logistic regression analysis showed that fascia injury,bone cement leakage and preoperative bone mineral density<-3.10 were independent risk factors of residual low back pain in patients with thoracollumbar OVCF after PKP(P<0.05).Conclusions There is still residual low back pain in some patients with thoracollumbar OVCF after PKP.It is related to fascia injury,bone cement leakage and preoperative bone mineral density<-3.10.Clinically,active and effective targeted measures should be taken to reduce the incidence of residual low back pain and improve their prognosis.
Thoracolumbar osteoporotic vertebral compression fracturePercutaneous kyphoplastyResidual low back painRisk factor
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