avascular necrosis

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Interruption of the blood supply to a structure causing it to ‘die’ or disintegrate. In children, a stress fracture to the top of the thigh bone can lead to avascular necrosis in the ball of the hip joint. Avascular necrosis can also occur after a fracture to the scaphoid bone in the wrist, due to absence of blood supply to the proximal pole of the bone.

Subjects: Sports and Exercise Medicine.

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