Effect of Medial Opening Wedge High Tibial Osteotomy on Intraarticular Knee and Ankle Contact Pressures
Effect of Medial Opening Wedge High Tibial Osteotomy on Intraarticular Knee and Ankle Contact Pressures
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DOI：
10.1002/jor.22793
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发表时间：
2015-04-01
影响因子：
2.8
通讯作者：
Liodakis, Emmanouil
中科院分区：
文献类型：
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作者：
Suero, Eduardo M.;Sabbagh, Yaman;Liodakis, Emmanouil
胫骨高位截骨术（HTO）是一种常用的手术技术，通过将力中心向外侧腔室转移来治疗膝关节内侧腔室的中度骨关节炎（OA）。先前的研究记录了HTO对膝关节生物力学的影响。然而，手术对踝关节内接触压力的影响尚未得到很好的描述。7具尸体接受了HTO手术，连续5度外翻调整至15度矫正。施加高达550N的轴向力，记录关节内压力。胫骨近端轻微外翻调整不会显著改变踝关节的生物力学。然而，胫骨近端对中到大的改变会导致胫距接触表面积的显著减少和关节内踝关节压力的变化。这些发现具有临床相关性，因为它们为诊断和治疗下肢错位或矫直手术后的踝关节症状提供了生物力学基础。(c) 2015年骨科研究会。Wiley期刊公司出版。[J]中华骨科杂志，2015。
High tibial osteotomy (HTO) is a commonly used surgical technique for treating moderate osteoarthritis (OA) of the medial compartment of the knee by shifting the center of force towards the lateral compartment. Previous studies have documented the effects of HTO on the biomechanics of the knee. However, the effects of the procedure on the contact pressures within the ankle joint have not been as well described. Seven cadavers underwent an HTO procedure with sequential 5 degrees valgus realignment of the leg up to 15 degrees of correction. An axial force of up to 550N was applied and the intraarticular pressure was recorded. Minor valgus realignment of the proximal tibia does not significantly alter the biomechanics of the ankle. However, moderate-to-large changes in proximal tibial alignment result in significantly decreased tibiotalar contact surface area and in changes in intraarticular ankle pressures. These findings are clinically relevant, as they provide a biomechanical rationale for the diagnosis and treatment of ankle symptoms in the setting of lower limb malalignment or after alignment correction procedures. (c) 2015 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 33:598-604, 2015.