Ki Hyuk Sung1, Soon-Sun Kwon2, Moon Seok Park3, Kyoung Min Lee4, Jonghyun Ahn5, Seung Yeol Lee6. 1. Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 82 Gumi-ro173beon-gil, Bundang-gu, Seongnam-si, Kyungki 13620, Republic of Korea. Electronic address: 89412@snubh.org. 2. Department of Mathematics, College of Natural Science, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon-si, Kyungki 16499, Republic of Korea. Electronic address: qrio1010@ajou.ac.kr. 3. Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 82 Gumi-ro173beon-gil, Bundang-gu, Seongnam-si, Kyungki 13620, Republic of Korea. Electronic address: 65407@snubh.org. 4. Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 82 Gumi-ro173beon-gil, Bundang-gu, Seongnam-si, Kyungki 13620, Republic of Korea. Electronic address: oasis100@snubh.org. 5. Department of Orthopaedic Surgery, Ewha Womans University Mokdong Hospital, 1071 Anyangcheon-ro, Yangcheon-gu, Seoul 07985, Republic of Korea. Electronic address: 21344@eumc.ac.kr. 6. Department of Orthopaedic Surgery, Ewha Womans University Mokdong Hospital, 1071 Anyangcheon-ro, Yangcheon-gu, Seoul 07985, Republic of Korea. Electronic address: syleemd@ewha.ac.kr.
Abstract
BACKGROUND: This study aimed to estimate the annual change in radiographic indices for juvenile hallux valgus (JHV) and to analyze the factors that influence deformity progression. METHODS: Patients aged <15 years who had JHV and were followed up for at least 1 year were included. Hallux valgus angle (HVA), hallux interphalangeal angle, intermetatarsal angle, metatarsus adductus angle, distal metatarsal articular angle, anteroposterior talo-first metatarsal angle, and lateral talo-first metatarsal angle were evaluated. The progression rate of HVA was adjusted by multiple factors by using a linear mixed model. RESULTS: A total of 133 feet were included. The HVA and distal metatarsal articular angle both increased by 0.8° per year (p<0.001 and p=0.003, respectively). HVA increased by 1.5° per year (p<0.001) at under the age of 10, and the HVA progression in the older patients was not statistically significant. CONCLUSIONS: JHV deformity could progress with aging. Most deformity progression could occur before the age of 10 years.
BACKGROUND: This study aimed to estimate the annual change in radiographic indices for juvenile hallux valgus (JHV) and to analyze the factors that influence deformity progression. METHODS:Patients aged <15 years who had JHV and were followed up for at least 1 year were included. Hallux valgus angle (HVA), hallux interphalangeal angle, intermetatarsal angle, metatarsus adductus angle, distal metatarsal articular angle, anteroposterior talo-first metatarsal angle, and lateral talo-first metatarsal angle were evaluated. The progression rate of HVA was adjusted by multiple factors by using a linear mixed model. RESULTS: A total of 133 feet were included. The HVA and distal metatarsal articular angle both increased by 0.8° per year (p<0.001 and p=0.003, respectively). HVA increased by 1.5° per year (p<0.001) at under the age of 10, and the HVA progression in the older patients was not statistically significant. CONCLUSIONS:JHVdeformity could progress with aging. Most deformity progression could occur before the age of 10 years.