L'HALLUX RIGIDUS

Abstract

Hallux rigidus is generally associated with osteoarthritis and denotes reduced dorsiflexion of the metatarsophalangeal joint of the great toe. Hallux rigidus occurs more commonly in men because of the metatarsal formula index plus and an Egyptian finger formula of the toes. It is usually a primary form of osteoarthritis but accumulated microtrauma are often encountered. The reduced dorsiflexion of the metatarsophalangeal joint induces different steps: pain (hallus dolorosus), hallux limitus and then hallux rigidus. Typical clinical findings are accompanied of degenerative changes with osteophytes on X-rays. Conservative treatment is reserved for hallus dolorosus but a surgical correction is required early to avoid joint destruction.