[Hallux saltans-rare diagnosis, often overlooked].

Hallux saltans is similar to digitus saltans and produces a spontaneous "snapping" of the big toe. This results in a constriction of the flexor hallucis longus tendon within the osteofibrous retromalleolar canal. The diagnosis was first described in 1940, and only a few case reports exist. We present the diagnosis and the treatment of a patient and give a review of the literature.