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首页> 外文会议>BED-vol.56; American Society of Mechanical Engineers(ASME) International Mechanical Engineering Congress and Exposition; 20041113-19; Anaheim,CA(US) >Reconstructions of the Knee Following Combined Injury to the Posterior Cruciate Ligament and the Posterior Lateral Structures
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Reconstructions of the Knee Following Combined Injury to the Posterior Cruciate Ligament and the Posterior Lateral Structures

机译：后交叉韧带和后外侧结构联合损伤后的膝关节重建

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摘要

The posterior cruciate ligament (PCL) provides primary restraint to posterior tibial translation. Knee injuries involving only the PCL usually result in minimal disability, and are commonly treated non-surgically. However, combined injuries of the PCL and the posterior lateral structures (PLS) in the knee can result in considerable abnormal posterior laxity and posterolateral rotary instability leading to rapid cartilage degeneration. There is consensus that, in most cases, knees with this combined injury require surgical reconstruction. The PCL is composed of two major bands or bundles: the large, anterolateral bundle (ALB), which tightens with knee flexion, and the smaller, posteromedial bundle (PMB), which tightens with knee extension. Because of the existence of these two bundles and their separate functions, there remains uncertainty as to whether a single stranded PCL graft is sufficient or a double stranded graft is required to adequately reconstruct a knee with a combined PCL/PLS injury. The purpose of this study was to compare, in an in-vitro experiment, the restoration of normal joint positioning and kinematics by single and double strand PCL reconstructions in a knee with a combined PCL/PLS injury.
机译：后十字韧带（PCL）为胫骨后平移提供了主要的约束。仅涉及PCL的膝伤通常会导致最小程度的残疾，并且通常采用非手术治疗。但是，膝盖的PCL和后侧结构（PLS）的综合伤害会导致相当大的后部松弛和后外侧旋转不稳定，从而导致快速的软骨变性。普遍认为，在大多数情况下，合并有膝盖的膝盖需要手术重建。 PCL由两个主要的带或束组成：较大的前外侧束（ALB），其通过屈膝而收紧，而较小的后内侧束（PMB），其通过屈膝而收紧。由于这两个束的存在和它们各自的功能，对于单链PCL移植物是否足够还是需要双链移植物来充分重建合并PCL / PLS损伤的膝关节仍存在不确定性。这项研究的目的是在一项体外实验中比较在PCL / PLS合并损伤的膝关节中单链和双链PCL重建对正常关节定位和运动学的恢复。

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