RELATION BETWEEN KNEE MOTION AND LIGAMENT LENGTH PATTERNS

被引：39

作者：

ROVICK, JS ^{[1
]}

REUBEN, JD ^{[1
]}

SCHRAGER, RJ ^{[1
]}

WALKER, PS ^{[1
]}

机构：

[1] NORTHWESTERN UNIV,REHABIL ENGN PROGRAM,CHICAGO,IL 60611

来源：

CLINICAL BIOMECHANICS | 1991年 / 6卷 / 04期

关键词：

KNEE JOINT; KNEE MOTION; KNEE MECHANICS; LIGAMENT LENGTHS;

D O I：

10.1016/0268-0033(91)90049-V

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Fifteen knee specimens were tested in a 6-degrees-of-freedom test machine using quadriceps force to drive continuous flexion-extension motion. Ten of the knees were again tested following isolated transection of the anterior cruciate ligament. From transducer outputs, three-dimensional motion was determined. Using biplanar radiography and bone sectioning, ligament insertion coordinates and joint surface geometry were determined and used to calculate ligament length ratios as a function of knee flexion. Consistent motion patterns were seen in all knees. The prominent aspects of motion were a 15-degrees internal rotation and an 8.6 mm anterior displacement of the tibia with flexion from 0 to 120-degrees. Anterior cruciate transection resulted in abnormal and excessive anterior-posterior displacement in early flexion, but a return to normal in late flexion. The results indicated that under our test conditions the boundaries of anterior-posterior motion were determined primarily by the cruciate ligaments, but tibial rotation was not guided by the cruciate ligaments.

引用

页码：213 / 220

页数：8

共 29 条

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