Legg �Calv� �Perthes disease (LCPD) refers to a childhood hip disorder that occurs when the blood supply to the head of femur is disrupted for unknown reasons, resulting in avascular necrosis of the head of femur. The disease was named after three doctors; Arthur Legg, Jacques Calv�, and Georg Perthes. Children with LCPD develop hip limping and pain which worsens with activity, and it may be referred to the knee. The condition is often treated with surgery and physiotherapy to help restore movement and function.
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