Adaptive Multimode Lubrication in Natural Synovial Joints and Joint Prostheses

自然滑膜关节和关节假体中的自适应多模式润滑

• 批准号: 03452117
• 负责人: MURAKAMI Teruo
• 金额: $ 4.48万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-03452117/
• 关键词: Natural Synovial Joints; Joint Prostheses; Adaptive Multimode Lubrication; Tribology; Biotribology; Biomechanics; Artificial Cartilage; Medical Engineering; 多モ-ド適応潤滑; トライボロジ-; バイオテトイボロジ-

The object of this research is to elucidate the adaptive multimode lubrication mechanism in natural synovial joints and joint prostheses.The following methods were carried out.1.Elucidation of the adaptive multimode lubrication in natural synovial jointsIn addition to the elastohydrodynamic lubrication, the gel-film lubrication and weeping lubrication mechanisms were investigated. The reciprocating tests of gelatin gel models showed the lowering of friction under appropriate temperature condition for sedimentation and adsorption of gel film. Frictional behavior of pig articular cartilage exhibited the influence of gel film. The weeping behavior in cartilage surface was observed by the confocal laser microscope. The lowering of friction was shown in related to the weeping in PVA(poly-vinyl-alcohol) hydrogel.2.Investigation of the adaptive multimode lubrication in joint prosthesesBoth cylindrical knee prosthesis and anatomical one with compliant tibial component exhibited the considerable elastohydrodynamic film formation under lubricated condition with lubricants of medium viscosity. Under low viscosity conditions, the adaptive multimode lubrication mechanism is required. The weeping lubrication was examined by using PVA hydrogel component, showing low friction. The duo-cylindrical geometric design was proposed to establish two modes for the stance and swing phases during walking.3.Clinical evaluation of lubrication mode in natural synovial joints and joint prosthesesThe occurence of high acceleration for lateral direction was observed in patients with osteoarthritis of inferior lubrication function in knee joints. The improvement of contact condition in knee joint by using insole was effective in reducing of lateral thrust.

本研究的目的是阐明自然滑膜关节和关节假体中的自适应多模式润滑机制。主要进行了以下方法：1.阐明自然滑膜关节中的自适应多模式润滑除了弹流润滑之外，还研究了凝胶膜润滑和渗流润滑机制。明胶凝胶模型的往复试验表明，在适当的温度条件下，摩擦力降低，有利于凝胶膜的沉降和吸附。猪关节软骨的摩擦行为表现出凝胶膜的影响。通过共焦激光显微镜观察软骨表面的渗流行为。摩擦力的降低与PVA（聚乙烯醇）水凝胶的渗流有关。2.关节假体自适应多模式润滑的研究无论是圆柱形膝关节假体还是具有顺应性胫骨部件的解剖假体，在中等粘度润滑剂的润滑条件下都表现出相当大的弹流动力膜形成。在低粘度条件下，需要自适应多模式润滑机构。使用 PVA 水凝胶成分测试渗漏润滑，显示出低摩擦。提出双圆柱几何设计，建立步行过程中站立和摆动阶段的两种模式。3.自然滑膜关节和关节假体润滑模式的临床评价观察膝关节润滑功能较差的骨关节炎患者出现横向高加速度。采用鞋垫改善膝关节接触条件，可有效减少侧向推力。

项目成果

Teruo Murakami: "The Adaptive Multimode Lubrication in Knee Prostheses Under Walking Conditions" Proc.Third U.S.A.ーChinaーJapan Conference on Biomechanics. 78-79 (1991)

Teruo Murakami：“步行条件下膝关节假体的自适应多模式润滑”，第三届美国-中国-日本生物力学会议 (1991)。

Teruo Murakami: "Fluid Film Formation in Knee Prostheses with Compliant Tibial Component" Proc. 1990 Ann. Meeting, Jap. Soc. Orthop. Biomech.Vol.12. 41-45 (1991)

Teruo Murakami：“具有顺应性胫骨组件的膝关节假体中的液膜形成”Proc。

村上 輝夫: "軟質摩擦面を有する人工膝関節における流体潤滑機能" 整形外科バイオメカニクス. 12. 41-45 (1991)

Teruo Murakami：“具有软摩擦表面的人工膝关节的水润滑功能”，《骨科生物力学》，12. 41-45 (1991)。

Teruo Murakami: "The adaptive multimode Iubrication in knee prostheses with compliant layer during walking motion" Proc.19th Leeds-Lyon Symp. on tribology. (1993)

Teruo Murakami：“步行运动期间具有柔顺层的膝关节假体的自适应多模式润滑”Proc.19th Leeds-Lyon Symp。

村上 輝夫: "軟質摩擦面を有する人工膝関節における流体潤滑機能(続報)" 整形外科バイオメカニクス. 13巻. 371-374 (1992)

Teruo Murakami：“具有软摩擦表面的人工膝关节的流体动力润滑功能（后续报告）”骨科生物力学，第 13 卷，371-374（1992 年）。