THE DISTAL RADIOULNAR LIGAMENTS - A BIOMECHANICAL STUDY

被引：161

作者：

SCHUIND, F ^{[1
]}

AN, KN ^{[1
]}

BERGLUND, L ^{[1
]}

REY, R ^{[1
]}

COONEY, WP ^{[1
]}

LINSCHEID, RL ^{[1
]}

CHAO, EYS ^{[1
]}

机构：

[1] MAYO CLIN & MAYO FDN,DEPT ORTHOPED,BIOMECH LAB,ROCHESTER,MN 55905

来源：

JOURNAL OF HAND SURGERY-AMERICAN VOLUME | 1991年 / 16A卷 / 06期

关键词：

D O I：

10.1016/S0363-5023(10)80075-9

中图分类号：

R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学（修复外科学）];

学科分类号：

摘要：

The mechanical roles of the triangular fibrocartilage have been examined in three experiments. Kinematic analysis by a stereophotogrammetric method revealed that the palmar radioulnar ligament was taut in supination and that the dorsal radioulnar ligament was taut in pronation. In full pronation, the palmar radioulnar ligament decreased to an average of 71% of its length in tension. In full supination, the dorsal radioulnar ligament decreased to an average of 90% of its length. Mechanical testing of the triangular fibrocartilage under axial load disclosed a significant laxity (mean: 10.4 mm), which was decreased in pronation. Transverse loading tests demonstrated that the triangular fibrocartilage is less stiff in neutral forearm rotation. Study of the material properties of the palmar and dorsal parts of the triangular fibrocartilage showed these structures to be strong ligaments with material properties similar to those of the radiocarpal ligaments.

引用

页码：1106 / 1114

页数：9

共 29 条

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