Objective To investigate the risk factors for re-fracture of osteoporotic vertebral compression fracture (OVCF) treated with percutaneous kyphoplasty (PKP). Methods A retrospective analysis was performed on 1 829 patients diagnosed with OVCF and treated with PKP from January 2005 to August 2021 in our hospital, including 1 412 females and 417 males. According to the re-fracture type, patients were divided into re-fracture group and no re-fracture group. Gender, age, body mass index (BMI), bone mineral density (BMD), postoperative degree of scoliosis and kyphosis, postoperative recovery rate of vertebral height, number of fractured vertebral bodies, duration of preoperative conservative treatment, postoperative anti-osteoporosis treatment, bone cement leakage, visual analogue scale (VAS) score, Oswestry disability index (ODI) were analyzed. The related factors were analyzed by univariate and multivariate Logistic regression analysis. Results Gender, age, BMI, BMD, postoperative anti-osteoporosis treatment, bone cement leakage, duration of preoperative conservative treatment were related to the re-fracture (P<0.05). There was no significant correlation between the degree of postoperative scoliosis angle, the degree of postoperative scoliosis deformity, the number of initial fractured vertebral bodies, the recovery rate of postoperative vertebral height, VAS, ODI and the re-fracture (all P>0.05). Multivariate Logistic regression analysis showed that female (OR=4.355, 95% CI: 1.598-17.908, P=0.006), age≥65 years (OR=6.431, 95% CI: 1.756-23.233, P=0.003), BMI≥23 kg/m2 (OR=3.561, 95% CI: 0.787-12.065, P=0.037), BMD<-2.5 SD (OR=10.352, 95% CI: 2.857-41.761, P<0.001), postoperative no anti-osteoporosis treatment (OR=6.070, 95% CI: 1.731-21.165, P=0.003), bone cement leakage (OR=6.150, 95% CI: 1.671-16.177, P=0.004) were risk factors for postoperative re-fracture after PKP. Conclusion PKP should be operated carefully to avoid cement leakage. We should pay more attention to the female, old age, high BMI, low bone mineral density patients after PKP. Regular anti-osteoporosis treatment was performed after operation to avoid the occurrence of re-fracture. |