Musculoskeletal Imaging

Peroneal spastic flatfoot

a foot deformity characterized by pain in the foot, limited subtalar motion, pes planus deformity, and shortening with spasm of the peroneal muscles often initiated by minor trauma or unusual activity. Frequently this deformity is associated with tarsal coalition, but a similar abnormality may also occur in connection with juvenile chronic arthritis, tuberculosis, osteoarthritis and fracture. The foot may be held in a valgus or varus position.