7. Which of the following is designated by a deterioration of the head of the femur due to a lack of blood supply? a. Osteomyelitis b. Gout c. Perthe’s disease d. Paget’s disease Explanation: Perthe’s disease is an avascular necrosis of the ball of the femur at the hip joint. The condition is caused by a lack of blood supply to the growth plate in the femur head that causes the deterioration of bone.