Zhang Yijie, Chen Yanxi, Qiang Minfei, Zhang Kun, Li Haobo, Jiang Yuchen, Jia Xiaoyang
Department of Orthopaedic Trauma, East Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China.
J Arthroplasty. 2017 Aug;32(8):2563-2567. doi: 10.1016/j.arth.2017.02.078. Epub 2017 Mar 8.
We aim to make an anthropometric analysis of tibial plateau at the surface level and the resected level and analyze the correlation in lengths between 2 levels. We hypothesized that lengths at the surface level were longer than those at the resected level, which brought soft tissue tolerance for tibial component to overhang.
Anthropometric data were measured using three-dimensional structures reconstructed from tibial plateaus of 100 knees in 100 Chinese subjects (50 men and 50 women). Mediolateral, medial anteroposterior, and lateral anteroposterior lengths at the surface level and the resected level were measured, and the Pearson's correlation coefficients of these data were calculated.
Mediolateral and medial anteroposterior lengths at the surface level were longer than those at the resected level by a mean 2.38 ± 1.29 and 1.99 ± 1.76 mm, respectively. Lateral anteroposterior length at the surface level was shorter than that at the resected level by a mean 1.54 ± 2.49 mm. All these differences between 2 levels had no gender difference.
Our findings suggest that tibial overhang could be better tolerated in the medial compared to the lateral compartment but this hypothesis has to be further investigated in a clinical study.
我们旨在对胫骨平台的表面水平和切除水平进行人体测量分析，并分析两个水平之间长度的相关性。我们假设表面水平的长度比切除水平的长，这会导致胫骨部件的软组织耐受性出现悬垂。
使用从100名中国受试者（50名男性和50名女性）的100个膝关节的胫骨平台重建的三维结构测量人体测量数据。测量表面水平和切除水平的内外侧、内侧前后和外侧前后长度，并计算这些数据的皮尔逊相关系数。
表面水平的内外侧和内侧前后长度分别比切除水平长2.38±1.29毫米和1.99±1.76毫米。表面水平的外侧前后长度比切除水平短1.54±2.49毫米。两个水平之间的所有这些差异均无性别差异。
我们的研究结果表明，与外侧间室相比，内侧间室对胫骨悬垂的耐受性可能更好，但这一假设必须在临床研究中进一步探讨。
