[Post-traumatic habitual luxation of the extensor carpi ulnaris tendon].

UNLABELLED: The authors refer to one case of isolated post traumatic habitual luxation of the extensor carpi ulnaris tendon. They notice: The rariety of such luxation: only 12 cases detected in the literature. Mechanism: brutal pronation-adduction of the wrist. The most important clinical sign: audible bounce in the prono-supination. Principal lesion: dilapidation or rupture of the tendon sheath.

TREATMENT: surgical reparation of this sheath. The orthopedic treatment even in acute stadium will not prevent from evolution to the habitual luxation, source of permanent functional constraint.