Hallux valgus (HV) deformity is associated with hindfoot valgus deformity. We experienced a case that suggests the possibility that valgus correction for varus hindfoot with bony ankylosis of the subtalar joint by total ankle arthroplasty may have caused a forefoot HV deformity, despite adequate valgus correction.
Keywords: Comprehensive observation; Hallux valgus deformity; Rheumatoid arthritis; Total ankle arthroplasty; Valgus correction of the hindfoot.