[Arthrosis of the first foot segment in aged patients (author's transl)].

Basing on x-ray and clinical examinations, the authors report on the incidence, distribution according to sex and age, and lateral localisation of arthrosis occurring in the first segment of the foot. The bilateral type of arthrosis mostly occurs as a result of hallux valgus and is seen in women. Furthermore, degnerative changes and structural modifications of the dislocated sesamoids are also frequent. Arthrosis associated with hallux rigidus is a degenerative process mainly found in men, which is exclusively unilateral. This degenerative process shows the classical clinical and x-ray signs pertaining to arthrosis