coxa plana

…head, which is known as Legg-Calvé-Perthes disease, and the second is osteonecrosis occurring in children, which is associated with a slipped capital femoral epiphysis.

…this site is known as Legg-Calvé-Perthes disease. It occurs in children between ages 3 and 13 and is much more frequent in boys than in girls. Persistent pain is the most prominent symptom. Uncorrected severe lesions lead to arrest of growth, deformity, and arthritic changes in the hip joint.

The most common form, coxa plana, or Legg-Calvé-Perthes syndrome, affects the hip and most often begins about the age of six. It is four times more frequent in boys than in girls. Crippling may result, and degenerative joint disease is a complication of middle age. Treatment includes rest and…