Persiane André Setti, Negrão Daiane Magalhães Gomes, Alves Raone Daltro Paraguassu, Freitas Diego Galace DE, Cazarini Cláudio, Alves Vera Lúcia Dos Santos
Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, SP, Brazil.
Universidade Paulista (UNIP), São Paulo, SP, Brazil.
Acta Ortop Bras. 2021 Jul-Aug;29(4):177-180. doi: 10.1590/1413-785220212904240893.
The medial longitudinal arch is the main structure of load bearing and shock absorption of the foot. The evaluation of medial longitudinal arch, such as the navicular height, the medial longitudinal arch angle and the Feiss line should be performed with the subtalar joint in the neutral and relaxed position. Our study analyzed the correlation between the measurements of the subtalar joint in neutral and relaxed positions during the evaluation tests of the medial longitudinal arch.
This is a cross-sectional study, in which 51 healthy volunteers (102 feet; 36 women; 28 ± 5 years, 1.66 ± 0.10 m; 24.5 ± 4.5 kg/m2) had their navicular height, medial longitudinal arch angle and Feiss line measured in the neutral and relaxed positions. The correlation between the measures was evaluated using Pearson's test.
A strong correlation of the 102 feet Feiss line measurements between neutral and relaxed positions (r = 0.81) was observed, and a moderate correlation between the medial longitudinal arch angle (r = 0.78) and between navicular height in neutral and relaxed positions (r = 0.76).
The measurements of the longitudinal medial arch between the neutral and relaxed positions are strongly correlated. Therefore, it is not necessary to measure the medial longitudinal arch in both neutral and relaxed positions.
内侧纵弓是足部主要的承重和减震结构。在内侧纵弓评估中，诸如舟骨高度、内侧纵弓角度和费斯线等指标的测量应在距下关节处于中立和放松位置时进行。我们的研究分析了在内侧纵弓评估测试中，距下关节中立位和放松位测量值之间的相关性。
这是一项横断面研究，51名健康志愿者（102只脚；36名女性；年龄28±5岁，身高1.66±0.10米；体重指数24.5±4.5千克/平方米）接受了中立位和放松位的舟骨高度、内侧纵弓角度及费斯线测量。测量指标之间的相关性采用Pearson检验进行评估。
观察到102只脚的费斯线在中立位和放松位测量值之间存在强相关性（r = 0.81），内侧纵弓角度（r = 0.78）以及中立位和放松位的舟骨高度之间存在中度相关性（r = 0.76）。
中立位和放松位的内侧纵弓测量值之间具有强相关性。因此，无需在中立位和放松位同时测量内侧纵弓。
