Patient's question:
The child was discovered to have a limp in February 2009 and visited the pediatric orthopedics department of the hospital. The diagnosis was pediatric avascular necrosis of the femoral head (chondrolysis). The child underwent two follow-up examinations in June and November 2009. They have consistently adhered to the prohibition of weight-bearing and functional exercises.Doctor's answer:
I believe this condition should be diagnosed as avascular necrosis of the femoral epiphysis, also known as Legg-Perthes disease or coxa plana, which is a relatively common form of osteochondral ischemic necrosis. It primarily affects boys aged 3-14, with a higher incidence in the 5-9 age group. The narrowing of the joint space in this condition is due to the concurrent development of osteoarthritis. The treatment involves bracing and avoiding excessive weight-bearing.