Biomechanical Validation of Medial Pie-Crusting for Soft-Tissue Balancing in Knee Arthroplasty
Biomechanical Validation of Medial Pie-Crusting for Soft-Tissue Balancing in Knee Arthroplasty
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DOI：
10.1016/j.arth.2014.09.005
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发表时间：
2015-02-01
影响因子：
3.5
通讯作者：
Williams, John L.
中科院分区：
文献类型：
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作者：
Mihalko, William M.;Woodard, Erik L.;Williams, John L.
平衡膝内翻通常是通过释放胫骨内侧的软组织套筒来实现的。最近，“饼状结壳”（PC）的中间结构被描述。在一项生物力学尸体研究中，我们比较了PC和传统松解（TR），以确定它们对屈伸间隙的影响。5个标本沿内侧软组织套筒的前半部分和5个标本沿后半部分进行PC，然后进行传统的松解。在90度屈曲中，TR后的外翻松弛度明显大于单独PC后。内侧软组织套筒前部或后部的PC分别对屈曲的影响大于伸展的影响。完全TR在伸展方面没有比PC提供更多的间隙开放，但在屈曲方面产生更大的效果。(C) 2014爱思唯尔公司版权所有。
Balancing a varus knee is traditionally accomplished by releasing the medial soft-tissue sleeve off the tibia. Recently, "pie-crusting" (PC) medial structures has been described. In a biomechanical cadaver study we compared PC to traditional release (TR) to determine their effects on flexion and extension gaps. PC was done in five specimens along the anterior half of the medial soft-tissue sleeve and five along the posterior half, followed by a traditional release. In 90 degrees flexion, valgus laxity after TR was significantly greater than after PC alone. PC of the anterior or posterior aspect of the medial soft-tissue sleeve can effect changes more in flexion than in extension, respectively. Complete TR did not provide more gap opening than PC in extension, but produced more effect in flexion. (C) 2014 Elsevier Inc. All rights reserved.