Involvement of the hips in juvenile rheumatoid arthritis.

Rheumatoid coxitis occurring in childhood develops differently from that occurring at an adult age. Inflammation quickly leads to considerable stiffness, and even to bony ankylosis, but does not cause extensive destruction. The functional disturbances set up by the inflammation interfere with the development of the hip joints, and the extent of the resultant morphologic abnormalities depends on the earliness of onset and the severity of the disturbances. Luxation and subluxation due to malformations in severe coxitis developed before the age of eight contrast with the acetabular protrusion of destructive coxitis in the adult. Coxitis. rheumatoide de pueritia se disveloppa alteremente que coxitis rheumatoide de adultos. In casos de pueritia, inflammation resulta rapidemente in grados considerabile de rigiditate, mesmo in ankylosis ossee, sed destruction extense non es causate. Le disturbationes functional que es le effecto del inflammation interfere in le disveloppamento del articulationes coxal, e le grado del resultante anormalitates morphologic depende del precocitate del declaration e del severitate del disturbationes. Luxation e subluxation causate per malformationes in casos sever de coxitis disveloppate ante le etate de octo annos contrasta con le protrusion acetabular de coxitis destructive in le adulto.