本文選題：膝關(guān)節(jié) + 交叉韌帶　； 參考：《醫(yī)用生物力學(xué)》2014年04期

【摘要】：目的分析前、后交叉韌帶功能束在膝關(guān)節(jié)運(yùn)動過程中的變化規(guī)律,為研究交叉韌帶損傷機(jī)制和移植物重建提供依據(jù)。方法選取5具無病理改變的膝關(guān)節(jié)節(jié)段標(biāo)本作為研究對象,精確解剖膝關(guān)節(jié)前、后交叉韌帶的功能束在股骨與脛骨附著點(diǎn),然后分別于膝關(guān)節(jié)在0°、30°、60°、90°、120°進(jìn)行CT掃描,應(yīng)用Mimics及ANSYS軟件對數(shù)據(jù)進(jìn)行三維重建,建立包含交叉韌帶附著點(diǎn)的膝關(guān)節(jié)三維有限元模型,最后應(yīng)用ANSYS及CATIA軟件確立前、后交叉韌帶功能束附著部及功能束各平行切面的中心點(diǎn),連接各中心點(diǎn)的長度,擬合得到以上5個角度各功能束中心點(diǎn)之間的曲線距離,即韌帶的真實(shí)長度。結(jié)果前交叉韌帶(anterior cruciate ligament,ACL)的前內(nèi)側(cè)束(anterior medial bundle,AMB)在0°~90°的范圍內(nèi)隨著屈曲角度增加距離逐漸增大,到120°時距離稍有減小;其后外側(cè)束(posterior lateral bundle,PLB)在0°~90°的范圍內(nèi)隨著屈曲角度增加距離逐漸減小,到120°時距離稍有增加。后交叉韌帶(posterior cruciate ligament,PCL)的前外側(cè)束(anterior lateral bundle,ALB)和后內(nèi)側(cè)束(posterior medial bundle,PMB)在0°~120°的范圍內(nèi)隨著屈曲角度增加距離逐漸增大。交叉韌帶各功能束的長度變化在總體上有統(tǒng)計學(xué)差異(P0.05)。結(jié)論在膝關(guān)節(jié)的屈曲過程中,ACL雙束之間起到交互作用,而PCL雙束之間起到協(xié)同作用。通過建立膝關(guān)節(jié)交叉韌帶功能束的有限元模型,更能真實(shí)反映交叉韌帶的實(shí)際長度,為研究交叉韌帶各功能束在運(yùn)動中的真實(shí)長度變化提供了合理的方法。
[Abstract]:Objective to analyze the changes of anterior and posterior cruciate ligament functional bundle during knee joint motion, and to provide basis for studying the mechanism of cruciate ligament injury and graft reconstruction. Methods the functional bundle of anterior and posterior cruciate ligament was dissected at the attachment point of femur and tibia in 5 cases of knee joint without pathological changes, and CT scanning was performed at 0 擄30 擄60 擄60 擄90 擄(120 擄). The 3D finite element model of knee joint with cruciate ligament attachment point was established by using Mimics and ANSYS software. Finally, ANSYS and CATIA software were used to establish the three dimensional finite element model of knee joint. The attachment of the functional bundle of the posterior cruciate ligament and the central point of the parallel section of the bundle are connected to the length of each central point, and the curve distance between the central points of each of the above five angles is obtained, that is, the true length of the ligament. Results the anterior medial bundles of anterior medial of anterior cruciate ligament (ACL) increased gradually with the increase of flexion angle in the range of 0 擄and 90 擄, and decreased slightly at 120 擄. The distance of posterior lateral bundles decreased with the increase of flexion angle in the range of 0 擄to 90 擄, and increased slightly at 120 擄. The anterolateral lateral bundles and posterior medial bundles of posterior cruciate ligament (cruciate) increased gradually with the increase of flexion angle in the range of 0 擄~ 120 擄. The length of each functional bundle of cruciate ligament was significantly different (P 0.05). Conclusion in the flexion of knee joint, there is interaction between the two bundles of ACLs and synergistic effects between the two bundles of PCL. By establishing the finite element model of the functional bundle of the cruciate ligament of the knee joint, the actual length of the cruciate ligament can be more truly reflected, which provides a reasonable method for the study of the real length change of the functional bundle of the cruciate ligament in the movement.
【作者單位】： 上海市閔行區(qū)中心醫(yī)院骨科;上海市靜安區(qū)中心醫(yī)院骨科;上海交通大學(xué)醫(yī)學(xué)院附屬第九人民醫(yī)院骨科;上海市閔行區(qū)中心醫(yī)院放射科;
【基金】：上海市閔行區(qū)科學(xué)技術(shù)委員會自然科學(xué)研究課題基金資助項目(2013MHZ007)
【分類號】：R318.01
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本文編號：1897313