TENSILE PROPERTIES OF THE HUMAN FEMUR-ANTERIOR CRUCIATE LIGAMENT-TIBIA COMPLEX - THE EFFECTS OF SPECIMEN AGE AND ORIENTATION

被引：764

作者：

WOO, SLY

HOLLIS, JM

ADAMS, DJ

LYON, RM

TAKAI, S

机构：

[1] Musculoskeletal Research Laboratories, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania

[2] Orthopaedic Bioengineering Laboratory, University of California, San Diego, California

[3] Orthopaedic Bioengineering Laboratory, University of California, San Diego, California

[4] Musculoskeletal Research Laboratories, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania

来源：

AMERICAN JOURNAL OF SPORTS MEDICINE | 1991年 / 19卷 / 03期

关键词：

D O I：

10.1177/036354659101900303

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 structural properties of 27 pairs of human cadaver knees were evaluated. Specimens were equally divided into three groups of nine pairs each based on age: younger (22 to 35 years), middle (40 to 50 years), and older (60 to 97 years). Anterior-posterior displacement tests with the intact knee at 30-degrees and 90-degrees of flexion revealed a significant effect of knee flexion angle, but not of specimen age. Tensile tests of the femur-ACL-tibia complex were performed at 30-degrees of knee flexion with the ACL aligned vertically along the direction of applied tensile load. One knee from each pair was oriented anatomically (anatomical orientation), and the contralateral knee was oriented with the tibia aligned vertically (tibial orientation). Structural properties of the femur-ACL-tibia complex, as represented by the linear stiffness, ultimate load, and energy absorbed, were found to decrease significantly with specimen age and were also found to have higher values in specimens tested in the anatomical orientation. In the younger specimens, linear stiffness (242 +/- 28 N/mm) and ultimate load (2160 +/- 157 N) values found when the femur-ACL-tibia complex was tested in the anatomical orientation were higher than those reported previously in the literature. These values provide new baseline data for the design and selection of grafts for ACL replacement in an attempt to reproduce normal knee kinematics.

引用

页码：217 / 225

页数：9

共 39 条

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