Enfermedad de Perthes : factores epidemiológicos y etiopatogénicos

A critical study of 25 cases of Perthes' disease diagnosed between 1975 and 1985 was made at the hospitals of N. ª S.ª de la Candelaria and Clínico Universitario of Canarias. A control group of 22 children from the paediatric out-patient clinics was made. Epidemiological and etiopathogenic studies were carried out, being more frequent in boys, in rural areas and the lower classes. The incidence of associated abnormalities was a 20%, being the youngest children of the family. Amongst the previous history they found a high incidence of traumatic and transient synovitis and alterations in the growth and development. They did not find a family bistory of Pertbes' disease present in this study.