Ultrasound Imaging of Subtalar Joint Instability for Chronic Ankle Instability

脚踝 距下关节 距腓前韧带 医学 无症状的 踝关节扭伤 核医学 超声波 韧带 口腔正畸科 外科 放射科
作者
Shintarou Kudo,Tsutomu Aoyagi,Takumi Kobayashi,Yuta Koshino,Mutsuaki Edama
出处
期刊:Healthcare [Multidisciplinary Digital Publishing Institute]
卷期号:11 (15): 2227-2227 被引量:3
标识
DOI:10.3390/healthcare11152227
摘要

The purpose of this study was to develop the assessment of subtalar joint instability with chronic ankle instability (CAI) using ultrasonography. Forty-six patients with anterior talofibular ligament (ATFL) abnormalities and a history of ankle sprain were divided into CAI (21.2 ± 5.9 y/o, 7 males and 17 females) and asymptomatic groups (21.0 ± 7.4 y/o, 9 males and 12 females) on the basis of subjective ankle instability assessed using the CAIT and the Ankle Instability Instrument Tool (AIIT). Twenty-six age-matched feet participated in a control group (18.9 ± 7.0 y/o, 9 males and 17 females). Ultrasound measurements of the width of the posterior subtalar joint facet were obtained at rest and maximum ankle inversion (subtalar joint excursion; STJE). The differences in STJE among the three groups were assessed by one-way ANOVA. The relationship between STJE and subjective ankle instability was assessed using Spearman’s correlation tests. The STJE value was significantly greater in the CAI group (2.3 ± 0.8 mm) than in the asymptomatic (1.0 ±0.4 mm) and control groups (0.8 ±0.2 mm) (p < 0.001, effect size: 0.64). STJE had significant negative correlations with CAIT (r = −0.71, p < 0.01), and significant positive correlations with AIIT (r = 0.74, p < 0.01). The cut-off value to distinguish between the CAI and asymptomatic groups was 1.7 mm using the ROC curve.
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