背景:目前的研究,深入研究了希腊样本中胫骨近端形态参数,不仅分析了特定的线性距离比率是否一致,而且为使用恒定比率进行膝关节置换术成像研究的潜在新型公制系统铺平了道路。这些发现可能对未来扩大的研究和临床实践具有重要意义。
方法:由两名独立研究者对38只干燥的胫骨进行了评估。使用数字游标器滑动卡尺测量以下距离:(1)近端表面的中侧距离(A),(2)近端表面的前后距离(B),(3)骨的纵向长度(C),(4)连接近端表面前缘与胫骨结节最高峰的线(D),(5)内侧关节小平面(AF)(内侧平台)的近端边缘的深度(E)和(6)外侧AF(外侧平台)的近端边缘的深度(F)。
结果:A,B,C,D,E,F的平均距离为71.3毫米,47.4mm,340.2mm,37.1mm,42mm,和35.9毫米。每个观察者对所有测量的可靠性分析显示,类间相关性(ICC)得分为0.975(观察者1)和0.971(观察者2)。比率A/B为1.5,A/C为常数0.2,D/C为0.1。E/F比为1.2。六个测量值(A-F)显示出优异的观察者间可靠性(所有ICC值>0.990)。
结论:研究确定了胫骨近端周围线性距离的恒定比率。考虑到这些比率,膝关节置换术中的不对称胫骨组件似乎更紧密地复制了天然解剖结构。此外,从近端表面的前缘到胫骨结节峰的距离,构成胫骨纵向长度的十分之一,显示出作为成像研究的公制系统的希望,尤其是评估胫骨组件周围的病变。
BACKGROUND: The current study, which delves into proximal
tibia morphometric parameters in a Greek sample, not only analyzes whether specific linear distance ratios are consistent but also paves the way for a potential novel metric system for knee arthroplasty imaging studies using constant ratios. These findings could have significant implications for future enlarged research and clinical practice.
METHODS: A total of 38 dried tibiae were evaluated by two independent investigators. The following distances were measured with a digital Vernier sliding caliper: (1) the mediolateral distance of the proximal surface (A), (2) the anteroposterior distance of the proximal surface (B), (3) The longitudinal length of the bone (C), (4) the line connecting the anterior margin of the proximal surface with the highest peak of the
tibia tuberosity (D), (5) the depth of the proximal margin of the medial articular facet (AF) (medial plateau) (E) and (6) the depth of the proximal margin of the lateral AF (lateral plateau) (F).
RESULTS: The A, B, C, D, E, and F mean distances were 71.3 mm, 47.4 mm, 340.2 mm, 37.1 mm, 42 mm, and 35.9 mm. Reliability analysis for each observer on all measurements revealed an interclass correlation (ICC) score of 0.975 (observer 1) and 0.971 (observer 2). The ratio A/B was 1.5, A/C was a constant 0.2, and D/C was 0.1. The ratio E/F was 1.2. The six measurements (A-F) showed excellent inter-observer reliability (all ICC values > 0.990).
CONCLUSIONS: The study established constant ratios of the studied linear distances around the proximal
tibia. Considering these ratios, asymmetrical tibial components in knee arthroplasty seem to replicate the native anatomy more closely. Furthermore, the distance from the anterior margin of the proximal surface to the tibial tuberosity peak, constituting one-tenth of the longitudinal length of the
tibia, shows promise as a metric system for imaging studies, especially in assessing lesions around tibial components.