A biomechanical evaluation of the tibiofibular and tibiotalar ligaments of the ankle
A biomechanical evaluation of the tibiofibular and tibiotalar ligaments of the ankle
复制标题
踝关节胫腓韧带和胫距韧带的生物力学评估
DOI：
10.1177/107110070302400509
复制
发表时间：
2003-05-01
影响因子：
2.7
通讯作者：
Belkoff, SM
中科院分区：
文献类型：
--
作者：
Beumer, A;van Hemert, WLW;Belkoff, SM
这项离体生物力学研究的目的是确定前、后胫腓联合韧带和三角韧带的后胫腓成分的强度和刚度。这些韧带的损伤是一个普遍的临床问题，但对其力学行为知之甚少。采集10具新鲜冷冻尸体下肢（平均死亡年龄72±8岁）。将三角肌的前、后胫腓韧带和后胫腓韧带分离并制备成骨-韧带-骨复合物进行拉伸试验，以确定强度、刚度和失效模式。胫腓骨后韧带比胫腓骨前韧带和三角韧带的胫后部分表现出更大的强度，但差异不显著（p < 0.05）。测试的三种韧带之间的僵硬度没有显著差异。胫腓骨前韧带的主要失效模式是韧带物质断裂，主要是在其腓骨止点附近，而胫腓骨后韧带的失效模式则平均分为物质断裂和腓骨撕脱。三角韧带的胫后部分最常在距止点附近断裂。如文献所述，胫腓骨韧带比外侧副韧带和三角韧带强度更大。胫腓骨韧带相对于外侧副韧带和三角肌更强！韧带提示这些韧带在踝关节约束中起重要作用。
The purpose of this ex vivo biomechanical study was to determine the strength and stiffness of the anterior and posterior syndesmotic tibiofibular ligaments and the posterior tibiotalar component of the deltoid ligament. Injuries to these ligaments are a prevalent clinical problem, yet little is known about their mechanical behavior. Ten fresh-frozen cadaver lower extremities (average age at death, 72 +/- 8 years) were harvested. The anterior and posterior tibiofibular ligaments and the posterior tibiotalar component of the deltoid were isolated and prepared as bone-ligament-bone complexes for tensile testing to determine strength, stiffness, and mode of failure. The posterior tibiofibular ligament exhibited greater strength, but not significantly so (p < .05), than the anterior tibiofibular ligament and the posterior tibiotalar component of the deltoid ligament. There were no significant differences in stiffness between the three ligaments tested. The dominant mode of failure for the anterior tibiofibular ligament was ligament substance rupture, primarily near its fibular insertion, whereas the failure modes of the posterior tibiofibular ligament were evenly split between substance ruptures and fibular avulsions. The posterior tibiotalar component of the deltoid ligament ruptured most often near the talar insertion. The tibiofibular ligaments showed greater strength than the lateral collateral and deltoid ligaments, as mentioned in literature. The greater strength of the tibiofibular ligaments relative to the lateral collateral and deltoid! ligaments suggests that these ligaments play an important role in ankle constraint.