经皮椎体成形术骨水泥注射量相关生物力学研究现状和进展

摘要

经皮椎体成形术(PVP)是广泛应用于治疗椎体血管瘤、椎体压缩骨折、脊柱转移瘤、骨髓瘤等疾病的微创技术.临床上普遍认为PVP术疗效与骨水泥注射量密切相关,然而有关术中骨水泥具体注射量仍存在较大争议.本文基于国内外研究现状,简要介绍了影响骨水泥注入量的椎体相关生物力学因素,骨水泥注入量对椎体强度、刚度及相邻椎体的影响,指出目前存在的主要争议,为进一步研究打下基础.%Percutaneous vertebroplasty (PVP) is a minimally-invasive technique,which has been widely employed in the treatment of hemangiomas,vertebral compression fractures,spinal metastases,myeloma and other diseases.Clinically,it is generally believed that the curative effect of PVP is closely related to the injected amount of bone cement.However,there is still great controversy over the optimal injection volume of bone cement.Based on the current researches both at home and abroad,this article aims to make a brief introduction about the relevant vertebral biomechanical factors that might affect the injection volume of bone cement,the influence of the injected volume of bone cement on the vertebral strength,rigidity and adjacent vertebral bodies.The main current disputes are pointed out so as to lay the foundation for further study.