Sagittal plane biomechanics cannot injure the ACL during sidestep cutting
Sagittal plane biomechanics cannot injure the ACL during sidestep cutting
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DOI：
10.1016/j.clinbiomech.2004.06.006
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发表时间：
2004-10-01
影响因子：
1.8
通讯作者：
van den Bogert, AJ
中科院分区：
文献类型：
--
作者：
McLean, SG;Huang, XM;van den Bogert, AJ
背景膝关节矢状面力是前交叉韧带在侧切等运动中损伤的机制。然而，这些运动的韧带力大小仍然未知。检查致伤事件的必要性表明，通过基于模型的调查进行解释是可能的。使用这种方法，本研究确定在侧步切割过程中矢状面膝关节载荷是否会单独损伤前交叉韧带。实验进行了特定主题的向前动态肌肉骨骼模型，从10名男性和10名女性运动员获得的数据生成。模型进行了优化，以模拟特定主题的切割运动。将随机扰动（n = 5000）应用于初始接触条件和股四头肌/腘绳肌激活水平，以模拟其对峰值3D膝关节载荷的影响。通过矢状面机制的损伤基于前牵引力大于2000 N的标准。真实的神经肌肉扰动导致膝关节外部前向力、外翻和内旋力矩显著增加。在任何模型中，峰值前牵引力从未超过2000 N，因此未导致前交叉韧带损伤。外翻负荷达到足以使韧带断裂的值，女性比男性更常见。在侧步切割过程中，膝关节关节的垂直平面力不会使前交叉韧带断裂。肌肉和关节力学之间的相互作用和外部地面反作用力在这个平面上，放置一个上限韧带负荷。外翻负荷是更可能的损伤机制，尤其是在女性中。因此，改变矢状面生物力学不太可能有助于预防前交叉韧带损伤。(C)2004爱思唯尔有限公司保留所有权利。
Background. Knee joint sagittal plane forces are a proposed mechanism of anterior cruciate ligament injury during sport movements such as sidestep cutting. Ligament force magnitudes for these movements however, remain unknown. The need to examine injury-causing events suggests elucidation via model-based investigations is possible. Using this approach, the current study determined whether sagittal plane knee loading during sidestep cutting could in isolation injure the anterior cruciate ligament.Methods. Experiments were performed on subject-specific forward dynamic musculoskeletal models, generated from data obtained from 10 male and 10 female athletes. Models were optimized to simulate subject-specific cutting movements. Random perturbations (n = 5000) were applied to initial contact conditions and quadriceps/hamstrings activation levels to simulate their effect on peak 3D knee loads. Injury via the sagittal plane mechanism was based on the criterion of an anterior drawer force greater than 2000 N.Findings. Realistic neuromuscular perturbations produced significant increases in external knee anterior force and valgus and internal rotation moments. Peak anterior drawer force never exceeded 2000 N in any model, and thus failed to cause anterior cruciate ligament injuries. Valgus loads reached values that were high enough to rupture the ligament, occurring more frequently in females than in males.Interpretation. Sagittal plane knee joint forces cannot rupture the anterior cruciate ligament during sidestep cutting. The interaction between muscle and joint mechanics and external ground reaction forces in this plane, places a ceiling on ligament loads. Valgus loading is a more likely injury mechanism, especially in females. Modifying sagittal plane biomechanics will thus unlikely contribute to the prevention of anterior cruciate ligament injuries. (C) 2004 Elsevier Ltd. All rights reserved.