Checkrein deformity of the great toe may occur after fracture of the distal third of tibia. It is due to adhesion of flexor hallucis longus muscle to callus. Charachteristic finding is shaply flexed great toe at ankle dorsiflexion and complete interphalangeal joint extension at ankle plantar flexion. We experienced a patient who had severe flexion deformity on the 2nd, 3rd, 4th toe and diagnosed as checkrein deformity of the lesser toes arised from calcaneal fracture. We can't find any report of checkrein deformity after fracture of calcaneus and we think this is very rare case. In operative field, we found fibrous contracture of quadratus plantae muscle which was adhered to flexor digitorum longus tendon. And we performed tenolysis, adhesiolysis and flexor digitorum longus tendon lengthening. 11 months after operation the patient showed excellent result with correction of the deformity.