RESUMO
Hallux varus is an uncommon condition and majority of the cases are iatrogenic. It can occur as a result of any type of hallux valgus correction surgery and in our cases scarf osteotomy is not an exception. Treatment of this complication can be challenging and it is important to understand the factors that cause this deformity before embarking on surgical correction. Four cases of hallux varus following Scarf osteotomy (1% of our total Scarf osteotomy cases) and discuss the salient features of these patients. The authors ascertained the factors that caused iatrogenic hallux varus and formulated a classification of the nature of the deformity. The management of iatrogenic hallux varus based on our experience and proposed classification system has also been outlined and discussed.