Legg-Calvé-Perthes disease affects the hip in young children. For some unknown reason, the blood supply to the growth center of the hip (the capital femoral epiphysis) is disturbed. The bone in this area starts to die. The blood supply eventually returns, and the bone heals.
Patients with Perthes disease are at risk of having osteoarthritis of the hip later in life. Damage to the labrum, a rim of cartilage around the hip socket is common. Many patients with Perthes disease will need a hip replacement.
The more damage there is with Legg-Calvé-Perthes disease, the more problems occur later. As researchers find out more about these hip conditions, earlier and better treatment may make a difference.
If conservative care doesn't improve your symptoms in two months' time, then experts suggest surgery as the next step. The torn or damaged labrum is shaved and smoothed down. More advanced techniques may be required depending on the condition of the hip.