期刊
AMERICAN JOURNAL OF SPORTS MEDICINE
卷 30, 期 5, 页码 660-666出版社
AMER ORTHOPAEDIC SOC SPORT MED
DOI: 10.1177/03635465020300050501
关键词
-
资金
- NIAMS NIH HHS [AR 39683] Funding Source: Medline
Background: The focus of most anterior cruciate ligament reconstructions has been on replacing the anteromedial bundle and not the posterolateral bundle. Hypothesis: Anatomic two-bundle reconstruction restores knee kinematics more closely to normal than does single-bundle reconstruction. Study Design: Controlled laboratory study. Methods: Ten cadaveric knees were subjected to external loading conditions: 1) a 134-N anterior tibial load and 2) a combined rotatory load of 5-N.m internal tibial torque and 10-N.m valgus torque. Resulting knee kinematics and in situ force in the anterior cruciate ligament or replacement graft were determined by using a robotic/universal force-moment sensor testing system for 1) intact, 2) anterior cruciate ligament deficient, 3) single-bundle reconstructed, and 4) anatomically reconstructed knees. Results: Anterior tibial translation for the anatomic reconstruction was significantly closer to that of the intact knee than was the single-bundle reconstruction. The in situ force normalized to the intact anterior cruciate ligament for the anatomic reconstruction was 97% +/- 9%, whereas the single-bundle reconstruction was only 89% +/- 13%. With a combined rotatory load, the normalized in situ force for the single-bundle and anatomic reconstructions at 30degrees of flexion was 66% +/- 40% and 91% +/- 35%, respectively. Conclusions: Anatomic reconstruction may produce a better biomechanical outcome, especially during rotatory loads. Clinical Relevance: Results may lead to the use of a two-bundle technique. (C) 2002 American Orthopaedic Society for Sports Medicine.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据