摘要
目的 :对我院与第一军医大学合作研究的人发角蛋白复合聚乳酸 (HHK -PLA)骨科内固定棒进行生物力学测试。方法 :利用MTS - 85 8Bionixtestsystem(MTS ,Minneapolis ,MN)生物力学测试机对 2 0根HHK -PLA棒的剪切强度和弯曲强度进行测试 ,了解HHK -PLA骨科内固定棒的力学性能。结果 :HHK -PLA骨科内固定棒的剪切强度为 186MPa ,弯曲强度为 2 30MPa ,弯曲模量为 12GPa。结论 :HHK -PLA骨科内固定棒的生物力学性能良好 ,各项指标均高于进口单纯聚乳酸棒 ,达到国外SR -PGA水平 ,有望在将来用于四肢承重骨的内固定。
Objective:To test the biomechanics of HHK-PLA rods making by our hospital and The First Military Medical University which are used in internal fixation.Methods:20 HHK-PLA rods were tested the shear strength, the bending strength and the bending modulus using the materials testing system (MTS-858 Bionix test system,MTS, Minneapolis, MN), respectively.Results:The shear strength of the HHK-PLA rod is 186 MPa, the bending strength is 230 MPa, and the bending modulus is 12 GPa.Conclusion:This study shows that the HHK-PLA composites rods have some fairly good biomechanical characteristics, and may be using in limbs weigh-bearing bones internal fixation in the future.
出处
《中国中医骨伤科杂志》
CAS
2003年第1期10-11,共2页
Chinese Journal of Traditional Medical Traumatology & Orthopedics
基金
广东省重大科技攻关课题
编号 :C3110 3
