应力松弛和蠕变：用于屈肌腱修复的常见缝合材料的粘弹性特性

Stress relaxation and creep: viscoelastic properties of common suture materials used for flexor tendon repair.

作者信息

Vizesi Frank, Jones Chris, Lotz Nick, Gianoutsos Mark, Walsh William R

机构信息

Surgical & Orthopaedic Research Laboratories, The University of New South Wales, Sydney, New South Wales, Australia.

出版信息

J Hand Surg Am. 2008 Feb;33(2):241-6. doi: 10.1016/j.jhsa.2007.10.011.

DOI:10.1016/j.jhsa.2007.10.011

PMID:18294547

Abstract

PURPOSE

The time-dependent mechanical behavior of common suture materials may have a pronounced influence on the quality of flexor tendon repairs with respect to gap formation.

METHODS

Sutures commonly used in plastic surgery, particularly for hand tendon repair, were tested in tension for analysis of stress relaxation and creep properties. The three materials tested were (1) Prolene, a monofilament polypropylene(Ethicon, Somerville, NJ); (2) Ethilon, a monofilament nylon(Ethicon, Somerville, NJ); and (3) Ticron, a braided polyester fiber (Sherwood, Davis & Geck, St. Louis, MO). All measurements were made with 1.5-mm (4-0) varieties of the sutures, in physiological buffered solution (0.9% phosphate-buffered saline [PBS]) at both room (22 degrees C) and body temperature (37 degrees C) conditions.

RESULTS

Ticron was the stiffest suture at both room and body temperature, followed by Prolene and Ethilon. Both Prolene and Ethilon showed statistically (p< .05) reduced stiffness at body temperature. Prolene exhibited statistically larger (p< .05) relaxation and creep ratios than the other two sutures, and it was the only material to show temperature effects in creep and relaxation.

CONCLUSIONS

Based on static and viscoelastic mechanical properties, Ticron is the most suitable suture for flexor tendon repairs when compared to Prolene and Ethilon.

摘要

目的

常见缝合材料随时间变化的力学行为可能对屈肌腱修复时的间隙形成质量产生显著影响。

方法

对整形外科中常用的、特别是用于手部肌腱修复的缝合线进行拉伸测试，以分析其应力松弛和蠕变特性。测试的三种材料分别为：（1）普理灵，一种单丝聚丙烯（Ethicon公司，新泽西州萨默维尔）；（2）爱西尼龙，一种单丝尼龙（Ethicon公司，新泽西州萨默维尔）；（3）泰科纶，一种编织聚酯纤维（Sherwood, Davis & Geck公司，密苏里州圣路易斯）。所有测量均使用1.5毫米（4-0）规格的缝合线，在室温（22摄氏度）和体温（37摄氏度）条件下的生理缓冲溶液（0.9%磷酸盐缓冲盐水[PBS]）中进行。