Biomechanical Characteristics of CPC Fillers and the Effect on Lumbar Function during PKP in Patients with Traumatic Thoracolumbar Fracture
[Objective]To investigate the biomechanical characteristics of calcium phosphate bone cement(CPC)filler and its effect on lumbar function during percutaneous kyphoplasty(PKP)in patients with traumatic thoracolumbar fracture.[Methods]A total of 100 patients with traumatic thoracolumbar fracture treated in our hos-pital from April 2019 to April 2021 were selected and divided into the observation group and the control group ac-cording to different surgical methods,with 50 cases in each group.Patients in the observation group received treat-ment of PKP combined with CPC filler,while patients the control group received PKP combined with polymethyl methacrylate bone cement(PMMA)filler.The biomechanical characteristics of the two groups were compared,and the operative time,intraoperative blood loss,bed-staying length,hospitalization time,postoperative efficacy and complications were compared between the two groups.The vertebral height,visual analogue scale(VAS)score,Cobb Angle,Oswestry Disability Index(ODI)score of the injured vertebra were evaluated before and 6 months after surgery.[Results]The flexural strength,fracture work and elastic modulus of CPC filler were superi-or to those of PMMA filler(P＜0.05).There was no significant difference in total curative effect between the two groups(P＞0.05).There was no significant difference in operation time,intraoperative blood loss,bed-staying time and hospitalization between the two groups(P＞0.05).There was no significant difference in the height of middle body,front edge and posterior edge between the two groups before and after surgery(P＞0.05).The an-terior margin height,middle height and posterior margin height of injured vertebrae in both groups were signifi-cantly higher than those before surgery(P＜0.05).There was no significant difference in VAS score,Cobb An-gle and ODI score between the two groups before and after surgery(P＞0.05).VAS score,Cobb Angle and ODI score in the two groups after surgery were lower than those before surgery(P＜0.05).There was no significant difference in the total incidence of complications between the two groups(P＞0.05).[Conclusion]CPC and PMMA were used in PKP for the treatment of traumatic thoracolumbar fractures.Both methods can improve the treatment efficiency and lumbar function,but CPC has higher and better biomechanical properties and is more in line with the biological requirements of orthopedic fillings.
万方数据
维普
