Twenty-six cases of
hallux valgus deformity, in 16 children with
cerebral palsy, were managed with great toe metatarsophalangeal (MTP)
arthrodesis. Mean age at the time of surgery was 16 years (range, 10 years and 11 months to 21 years and 11 months), and mean follow-up was 4 years and 11 months (range, 2 years and 1 month to 10 years). Significant improvement in the
hallux valgus angle (preoperative, 36.3 degrees; follow-up, 9.6 degrees; p < 0.05), the intermetatarsal angle (preoperative, 12.3 degrees; follow-up, 8.4 degrees; p < 0.05), and lateral metatarsophalangeal angle (preoperative, 4.8 degrees; follow-up, 25.8 degrees; p < 0.05), were achieved and maintained after MTP
arthrodesis. Functional outcome was documented by significant improvement in the modified American Orthopaedic Foot and Ankle Society Hallux Metatarsophalangeal-Interphalangeal Scale (preoperative mean score, 46.2; follow-up mean score, 90.9; p < 0.05). Patient/ parent/caregiver satisfaction (as determined by a questionnaire), with improvements in cosmesis, footwear, hygiene, activity, and
pain were high, ranging from 81% to 100%.
Hallux valgus deformity in children with
cerebral palsy is best managed by MTP
arthrodesis, in conjunction with other
surgical procedures that address segmental foot malalignment and dynamic gait deviations.