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Published on: February 17, 2018
Natural progression of radiographic indices in juvenile hallux valgus deformity
Ki Hyuk Sung1, Soon-Sun Kwon2, Moon Seok Park1
1Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 82 Gumi-ro173beon-gil, Bundang-gu, Seongnam-si, Kyungki 13620, Republic of Korea.
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.
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