Rare Case of a Right Hallux Varus: About a Case and Review of the Literature

Abstract

Hallux varus deformity is generally defined by three components: medial deviation of the hallux at the first metatarsophalangeal (MTP) joint, supination of the phalanx, and interphalangeal (IP) flexion or claw toe deformity. The deformation can be congenital or acquired. Hallux varus is most commonly seen as an iatrogenic complication of bunion surgery, resulting from overcorrection of hallux valgus. The incidence is relatively rare, with reports ranging between 2% and 15.4% in the literature. Besides iatrogenic hallux varus, several other etiologies cause acquired hallux varus: trauma, severe burn injury with contracture, systemic inflammatory disorders such as rheumatoid or psoriatic arthritis, Charcot-Marie-Tooth disease, avascular necrosis of the first metatarsal head, and paralysis or poliomyelitis. The goal of treatment is to obtain a functional, pain-free, shoeable foot. It is desirable to achieve a stable, aligned hallux while maintaining or maximizing joint mobility when possible.