APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Legg-Calve-Perthes disease occurs when too little blood is supplied to the ball portion of the hip joint (femoral head). Without enough blood, this bone becomes weak and fractures easily. The cause of the temporary reduction in blood flow to the femoral head remains unknown.

Detailed explanation-2: -The blood supply to the femoral head is made up of three arteries: the medial and lateral femoral circumflex arteries, and the artery of the ligamentum teres. In Legg-Calve-Perthes disease, the blood supply is disrupted by an unknown process, and the bone cells begin to die. This process is termed osteonecrosis.

Detailed explanation-3: -Perthes disease is a rare childhood condition that affects the hip. It occurs when the blood supply to the rounded head of the femur (thighbone) is temporarily disrupted. Without an adequate blood supply, the bone cells die, a process called avascular necrosis.