| 人膝关节软骨与聚乙烯醇水凝胶人工软骨压缩实验比较研究 |
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| 引用本文： | 李锋,周海宇,苏永琳,王成焘. 人膝关节软骨与聚乙烯醇水凝胶人工软骨压缩实验比较研究[J]. 医用生物力学, 2009, 24(6): 448-451 |
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| 作者姓名： | 李锋 周海宇 苏永琳 王成焘 |
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| 作者单位： | 上海交通大学 机械与动力工程学院;上海交通大学 机械与动力工程学院;上海交通大学 机械与动力工程学院;上海交通大学 机械与动力工程学院 |
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| 基金项目： | 国家自然科学基金重点资助项目（50535050） |
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| 摘 要： | 目的 比较人膝关节软骨和聚乙烯醇水凝胶（PVA-H）人工软骨的生物力学性能 方法 使用人膝关节软骨和PVA-H人工软骨进行轴向压缩试验，分别进行压缩应力应变、应力松弛和蠕变实验，得到关节软骨和PVA-H人工软骨的应力应变关系。结果 实验中人关节软骨和PVA-H的力学性能有差异，人关节软骨压缩模量大于PVA-H人工软骨，人关节软骨的压缩模量为（3.6492±0.6199）Mpa，PVA-H的压缩模量为（1.5951±0.1469）Mpa。结论 软骨和PVA-H人工软骨的生物力学性能具有一定差异，试验结果对人工软骨的进一步改进具有指导意义。
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| 关 键 词： | 力学性能；关节软骨；水凝胶 |
| 收稿时间： | 2009-08-18 |
| 修稿时间： | 2009-10-15 |
A study on the compression properties of articular cartilage and polyvinyl alcohol hydrogel as artificial cartilage |
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| LI Feng,ZHOU Hai-yu,SU Yong-lin and WANG Cheng-tao. A study on the compression properties of articular cartilage and polyvinyl alcohol hydrogel as artificial cartilage[J]. Journal of Medical Biomechanics, 2009, 24(6): 448-451 |
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| Authors: | LI Feng ZHOU Hai-yu SU Yong-lin WANG Cheng-tao |
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| Affiliation: | School of Mechanical Engineering, Shanghai Jiaotong University;School of Mechanical Engineering, Shanghai Jiaotong University;School of Mechanical Engineering, Shanghai Jiaotong University;School of Mechanical Engineering, Shanghai Jiaotong University |
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| Abstract: | Objective To study the compression properties of articular cartilage and polyvinyl alcohol hydrogel (PVA-H) as artificial cartilage. Methods Unconfined compression tests were conducted on articular cartilage and PVA-H, including stress-strain tests, creep tests and stress relaxation tests. The stress-strain relationship of articular cartilage and PVA-H were measured. Results The compression modulus of articular cartilage was higher than that of PVA hydrogel.The average compression modulus of articular cartilage and PVA hydrogel was (3.6492±0.6199) Mpa and (1.5951±0.1469) Mpa, respectively. |
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| Keywords: | Mechanical properties Articular cartilage Hydrogel |
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