Evaluation value of CT value in bone cement leakage after percutaneous vertebroplasty in osteoporotic thoracolumbar fractures

CHEN Jianfu; CHEN Yirui; ZHU Zhenlu; WENG Jiuyan; LIU Xin; CUI Yunneng

doi:10.12122/j.issn.1674-4500.2025.03.16

Abstract：Objective To investigate the value of CT values in evaluating bone cement leakage after percutaneous vertebroplasty(PVP)in osteoporotic thoracolumbar fractures.Methods A retrospective analysis was performed on the clinical and imaging data of 74 patients(103 vertebrae totally)with osteoporotic fractures of the thoracolumbar spine who underwent percutaneous vertebroplasty from March 2022 to December 2023 in High-end Orthopedic Hospital and Foshan Sanshui Zengkang Neck and Lumbar Hospital.Among them,there were 23 males and 51 females,aged 53-94 years old with an average age of 74.0±9.4 years old.Comparisons were made in terms of age and L1 vertebral CT values,and the CT values of adjacent vertebrae for various types of bone cement leakage.Results Among the 74 patients,55(74.3%)experienced bone cement leakage,and these patients shared older ages and lower CT values of L1 vertebrae.Among the 103 vertebrae,69(67.0%)exhibited bone cement leakage,including intervertebral disc leakage(17 vertebrae,24.6%),paravertebral venous leakage(38 vertebrae,55.1%),paravertebral soft tissue leakage(15 vertebrae,21.8%),basivertebral venous leakage(14 vertebrae,20.3%),and needle tract leakage(4 vertebrae,5.8%).Compared to vertebrae without leakage,adjacent vertebrae with intervertebral disc leakage had significantly lower CT values,while CT values did not differ significantly for other types of leakage.Conclusion CT values of L1 and adjacent vertebrae are correlated with bone cement leakage after percutaneous vertebroplasty for osteoporotic vertebral compression fractures,indicating a certain guiding value in assessing bone cement leakage.