拇指腕掌关节韧带的解剖力学分析及临床意义

发布时间：2018-03-13 04:39

  本文选题：拇指　切入点：腕掌关节　出处：《医用生物力学》2017年03期 　论文类型：期刊论文

【摘要】：目的研究拇指腕掌关节背桡韧带及前斜韧带的解剖学及生物力学特点,测量其弹性模量及延伸率,为伤病时韧带修复提供参考。方法解剖成人男性尸体40例新鲜手标本,制做成大多角骨-韧带-第1掌骨标本,20例保留背桡韧带,20例保留前斜韧带,在生物力学机上测试,测量和计算背桡韧带及前斜韧带的长、宽、厚、最大载荷、弹性模量、延伸率。结果背桡韧带、前斜韧带的最大载荷分别为(213.5±72.4)、(168.7±35.2)N,弹性模量分别为(17.2±6.7)、(9.3±2.5)MPa,延伸率分别为(116.2±21.3)%、(92.7±22.4)%。背桡韧带的最大载荷、弹性模量及延伸率均大于前斜韧带。结论拇指腕掌关节囊内韧带中,背桡韧带刚度较大,韧性较强,对维持关节稳定性起重要作用。前斜韧带刚度较小,韧性较差,韧带退变时容易损伤。拇指腕掌关节炎应该首选重建前斜韧带,且应选用弹性模量及延伸率接近背桡韧带的材料为佳。
[Abstract]:Objective to study the anatomical and biomechanical characteristics of the dorsal radial ligament and anterior oblique ligament of the wrist and metacarpal joint of the thumb, and to measure their modulus of elasticity and elongation so as to provide a reference for the repair of the ligaments during injury. Methods Forty fresh hand specimens of adult male cadavers were dissected. Most horn-ligaments-first metacarpal bone specimens were made. 20 cases of dorsal radial ligament and 20 cases of anterior oblique ligament were preserved. The length, width, thickness, maximum load and elastic modulus of dorsal radial ligament and anterior oblique ligament were measured and calculated by biomechanical machine. Results the maximum loads of the dorsal radial ligament and anterior oblique ligament were 213.5 卤72.4 and 168.7 卤35.2N respectively, the elastic modulus were 17.2 卤6.7 卤2.5mpa, and the elongation were 116.2 卤21.3 卤22.42.The maximum load of the dorsal radial ligament. Conclusion in the internal ligaments of carpometacarpal joint of thumb, the dorsalis radialis ligament plays an important role in maintaining the stability of the joint because of its large stiffness and strong toughness, and the anterior oblique ligament is less rigid and less tenacious than that of the anterior oblique ligament. The anterior oblique ligament should be reconstructed first and the materials with elastic modulus and elongation close to the dorsal radial ligament should be chosen as the best.
【作者单位】： 北京市顺义区医院上肢外科;首都医科大学燕京医学院卫生统计学教研室;
【基金】：基金项目:北京市科委2015年首都临床特色应用研究(Z151100004015053)
【分类号】：R322.7;R687
，

本文编号：1604881