The evaluation of rotational lateral ankle laxity in gravity stress position by ultrasonography: normative value in uninjured ankles.
BMC Musculoskelet Disord
; 25(1): 764, 2024 Oct 01.
Article
en En
| MEDLINE
| ID: mdl-39354465
ABSTRACT
BACKGROUND:
The evaluation of lateral ankle laxity remains challenging when diagnosing chronic lateral ankle instability (CLAI). Several studies have reported that internal rotation of the talus as an indicator of rotational lateral ankle laxity (RLAL) increases in patients with CLAI. However, there is no established method for detecting and evaluating the RLAL. This study aimed to report a novel method for evaluating the RLAL in the gravity stress position by measuring the talofibular distance (TFD) using ultrasonography (US) and show the normative value of the TFD.METHODS:
The TFDs in the subjects with healthy ankles were prospectively measured 10 mm distal to the ankle joint in the neutral ankle position and gravity stress position using US. The differences in the TFD between the two ankle positions were evaluated. The differences in the TFD by gender and ankle laterality were also evaluated.RESULTS:
A total of 52 healthy ankles of 28 subjects (mean age, 24.0 ± 1.6; male/female, 12/16) were finally included. There was a significant difference in the TFD between the neutral ankle position (6.9 ± 0.9 mm) and gravity stress position (9.0 ± 0.9 mm) (p < 0.001). The mean difference in the TFD between the two ankle positions was 2.1 ± 0.6 mm. There were no significant differences in the TFD by gender and ankle laterality.CONCLUSIONS:
The present study reported a novel US method for evaluating RLAL by applying gravity stress and the normative value of the TFD.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Ultrasonografía
/
Inestabilidad de la Articulación
/
Articulación del Tobillo
Límite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
BMC Musculoskelet Disord
Asunto de la revista:
FISIOLOGIA
/
ORTOPEDIA
Año:
2024
Tipo del documento:
Article
País de afiliación:
Japón
Pais de publicación:
Reino Unido