Investigation of accessory navicular in local pre-adolescence children: A longitudinal study with 2-year follow-up—KID Locomo Study
Year: 2025
Type: article
Abstract: INTRODUCTION: The accessory navicular (AN) is an accessory ossicle located on the medial side of the navicular bone and is often associated with sports-related overuse injuries during adolescence. However, little is known about the natural history of AN. This study aimed to clarify the natural course of AN, including symptomatic cases, in children through a longitudinal epidemiological investigation. METHODS: Data from the KID Locomo Study, a prospective cohort study aimed at elucidating musculoskeletal disorders in childhood, were used. Of the 834 children recruited in the 2022 baseline survey, 66 children (109 feet) aged 11-13 years with AN were enrolled in this 2-year longitudinal analysis. The presence of AN was assessed using ultrasonography. Data on sex, age, height, weight, presence of pain at the AN site, laterality, flatfoot (based on footprint analysis), and participation in athletic clubs were collected. The natural history of AN, including painful presentations, was evaluated. Multivariable logistic regression analysis was performed to identify risk factors for non-fusion of the AN with the navicular bone. RESULTS: Among the 109 feet with AN at baseline, 38 (34.9%) demonstrated fusion with the navicular bone at the 2-year follow-up. Of the 21 feet with painful AN at baseline, pain had resolved in 15 (71.4%) after 2 years. Multivariable logistic regression analysis revealed that female sex (odds ratio: 3.00; 95% confidence interval: 1.26-7.45; p = 0.01) and higher body mass index (BMI) (odds ratio: 1.20; 95% confidence interval: 1.02-1.43; p = 0.02) were significant risk factors for non-fusion. CONCLUSIONS: This study provides epidemiological data on the natural history of AN, including symptomatic cases, in children. To our knowledge, this is the first study to report the natural course of painful AN. These findings may offer fundamental insights into prevention and management strategies for painful AN in children.
Source: PLoS ONE
Institutions: Wakayama Medical University, Kihoku hospital
Language: English
Topic: Foot and Ankle Surgery
Subfield: Orthopedics and Sports Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $2,382
Awards: G2633774104, Establishment of MRI diagnostic criteria and development of ultrasonic echo evaluation system for the sarcopenia of paraspinal muscle, Development of early prediction and diagnostic markers for sarcopenia as a lifestyle-related disease, 傍脊柱筋サルコペニアの概念に基づく腰曲がり予防改善プログラムの開発, G4302798734, G6065038188, 小中学生における姿勢異常の実態および関連する生活習慣の解明, 運動負荷時の動脈圧波形解析による血管機能評価法の確立と心血管系リスク予測への応用, Development of diagnostic and predictive tool for motor function decline focusing on sarcopenia and spinal alignment change, Investigation of the Current Status of Childhood Locomotive Syndrome and Effective Intervention Methods, A Longitudinal Epidemiological Study Aimed at Preventing Flatfoot in Childhood
OpenAlex ID: W4415820003