Within-session repeatability and maturation-related differences in ultrasonographic assessment of the anterior tibiofibular gap in young athletes.

IF 2.1 4区医学 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Journal of Medical Ultrasonics Pub Date : 2026-07-08 DOI:10.1007/s10396-026-01662-4

Sakura Oda, Shogo Tsutsumi, Yasunari Ikuta, Tsubasa Tashiro, Satoshi Arima, Honoka Ishihara, Takeru Abekura, Ryosuke Kaizuka, Nobuo Adachi, Noriaki Maeda, Takashi Yamada

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引用次数: 0

Abstract

Purpose: Studies assessing the anterior tibiofibular gap (ATFG) using ultrasonography (US) under various weight-bearing conditions and ankle angles in young athletes are lacking. This study aimed to examine the within-session repeatability of US-measured ATFG under different weight-bearing conditions and ankle angles in young athletes.

Methods: A total of 49 young athletes aged 9-17 years (32 males, 17 females; 98 ankles) participated in this study. ATFG was assessed at the level of the anterior inferior tibiofibular ligament using US in both sitting and standing postures. The ankle was positioned under three conditions: neutral (0°), 20° dorsiflexion, and 20° dorsiflexion with 30° external rotation. The within-session repeatability of the US-based ATFG measurements was assessed for each weight-bearing condition and ankle angle according to maturation stage. Additionally, ATFG was compared between maturation stages, and sex-related and side-to-side differences were analyzed.

Results: The within-session repeatability was excellent for all measurement conditions, with intraclass correlation coefficient values exceeding 0.90 and standard error of measurement ranging from 0.05 to 0.21 mm. ATFG was greater in more mature athletes. No sex-related or side-to-side differences were observed in the ATFG or in the widening ratio.

Conclusion: US-based assessment of the ATFG demonstrated excellent within-session repeatability under standardized measurement conditions in young athletes.

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年轻运动员胫腓骨前间隙超声评估的可重复性和成熟相关差异。

目的：在不同负重条件和踝关节角度下，利用超声（US）评估年轻运动员胫腓骨前间隙（ATFG）的研究尚缺乏。本研究旨在研究美国测量的年轻运动员在不同负重条件和踝关节角度下的ATFG的可重复性。方法：49名9-17岁青少年运动员（男32名，女17名，踝关节98名）参与本研究。在坐姿和站姿下使用US评估胫腓前下韧带水平的ATFG。踝关节在三种情况下定位：中性（0°）、背屈20°和背屈20°并外旋30°。根据成熟阶段，评估不同负重状态和踝关节角度下美国ATFG测量的可重复性。此外，还比较了不同成熟阶段的ATFG，并分析了性别相关和侧对侧差异。结果：各测量条件的组内重复性均良好，组内相关系数均大于0.90，测量标准误差在0.05 ~ 0.21 mm之间。成熟运动员的ATFG值更高。在ATFG或宽宽比中没有观察到性别相关或侧对侧差异。结论：基于美国的ATFG评估显示，在标准化测量条件下，年轻运动员的训练内可重复性很好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Medical Ultrasonics 医学-核医学

CiteScore

3.30

自引率

11.10%

发文量

102

审稿时长

>12 weeks

期刊介绍： The Journal of Medical Ultrasonics is the official journal of the Japan Society of Ultrasonics in Medicine. The main purpose of the journal is to provide forum for the publication of papers documenting recent advances and new developments in the entire field of ultrasound in medicine and biology, encompassing both the medical and the engineering aspects of the science.The journal welcomes original articles, review articles, images, and letters to the editor.The journal also provides state-of-the-art information such as announcements from the boards and the committees of the society.