Analysis of risk factors of adjacent vertebral compression fracture after osteoporotic vertebral compression fracture operation
Objective:To analyze the related risk factors for adjacent vertebral compression fracture(AVCF)of osteoporotic vertebral compression fracture(OVCF)treated with percutaneous vertebroplasty(PVP)or percutaneous kyphoplasty(PKP).Methods:Retrospectively analyzed the clinical data of 148 patients with OVCF treated with PVP or PKP in the spinal surgery department of Zhengzhou first people's Hospital from April 2018 to February 2020.The patients were divided into AVCF group(27 cases)and non AVCF group(121 cases)according to whether AVCF occurred after operation.The age,gender,initial fracture number,initial fracture site(T10-L2,non-T10-L2),body mass index(BMI),operation method(PVP,PKP),CT value of lumbar 1 vertebral body preoperative,postoperative recovery rate of injured vertebral body height were recorded.Logistic regression analysis was used to determine the potential risk factors.Results:All patients were followed up for 6～18 months,with an average of 10 months.AVCF was observed in 27 patients(18.2％).There was no significant difference between the two groups in terms of gender,age,initial fracture number,initial fracturesite,operation method and BMI(P＞0.05).The CT value of L1 vertebral body in AVCF group was significantly lower than that in non AVCF group(P＜0.05).The recovery rate of injured vertebral body height in AVCF group was significantly higher than non AVCF group(P＜0.05).Univariate analysis showed that the CT value of L1 vertebral body and the recovery rate of injured vertebral body height were significantly correlated with AVCF after OVCF(P＜0.05);Multivariate analysis showed that the CT value≤80 HU of L1 vertebral body and the recovery rate of injured vertebral body height were independent risk factors for AVCF after OVCF.Conclusion:CT value of L1 vertebral body and recovery rate of injured vertebral height are risk factors for AVCF after PVP or PKP in OVCF patients
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