A Simplified Method of Opacifying and Mixing Acrylic Cement for Percutaneous Vertebroplasty: A Clinical and In Vitro Study
The objective of this study was to simplify the opacifying mixing process of the bone cement and contrast used for percutaneous vertebroplasty (PVP).We performed a bio mechanical study of polymethyl methacrylate (PMMA)(Corinplast TM 3) using three different mixtures of PMMA,monomer, and contrast: group Ⅰ, 2∶1; group Ⅱ, 3∶2; group Ⅲ,3∶2∶1 ratio of powder/monomer/iodinated contrast (Omni paque).In vitro biomechanical testing of ultimate com pressive strength was carried out in all samples.Following the conclusion of a proper bone cement mixture regimen drawn from the in vitro study, PVP was performed in 125 patients: 58 with cancer, 12 with hemangioma, and 54 with osteoporotic fracture.The ultimate compressive strength in group Ⅲ was decreased by 38% compared to groups Ⅱ and 1.Proper fluoroscopic visualization was achieved in all PVP procedures using this mixture.There were no major com plications associated with injection of the cement mixture.Complete (CR) and partial response (PR) was obtained in 64% and 32.8%, respectively.No further vertebral collapse occurred during follow-up.The regimen.using iodinated contrast for cement visualization during PVP provides a simple and convenient new method for mixing.Although the biomechanical strength is altered by the contrast med ium added, it seems insignificant in clinical practice based on the authors” limited experience.
Vertebroplasty percutaneous-Vertebral fracture osteoporosis-Vertebrae tumors-Bone cement opacifier
Gao-Jun Teng Shi-Cheng He Gang Deng Jin-He Guo Wen Fang Guang-Yu Zhu
Department of Radiology,Zhong-Da Hospital,Southeast University,87＃ Dingjiaqiao Road,Nanjing,China
国内会议
北京
英文
570-577
2010-04-23（万方平台首次上网日期，不代表论文的发表时间）