Avascular necrosis of the femoral condyle is known as?

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Multiple Choice

Avascular necrosis of the femoral condyle is known as?

Avascular necrosis of the subchondral bone under the knee cartilage is called subchondral osteonecrosis of the knee (SONK). This condition most often involves the medial femoral condyle and results from loss of blood supply to the subchondral bone, leading to bone death, cartilage damage, and potential collapse of the joint surface. A related but distinct entity is subchondral insufficiency fracture of the knee (SIFK), which is a fracture of the subchondral bone due to weakened bone (often osteoporosis). It can look similar on imaging to SONK, but the underlying process is a fracture rather than true necrosis. Freiberg disease is an osteochondrosis of a metatarsal head (in the foot), and Blount disease is a growth disturbance of the tibia causing leg bowing.

Avascular necrosis of the subchondral bone under the knee cartilage is called subchondral osteonecrosis of the knee (SONK). This condition most often involves the medial femoral condyle and results from loss of blood supply to the subchondral bone, leading to bone death, cartilage damage, and potential collapse of the joint surface.

A related but distinct entity is subchondral insufficiency fracture of the knee (SIFK), which is a fracture of the subchondral bone due to weakened bone (often osteoporosis). It can look similar on imaging to SONK, but the underlying process is a fracture rather than true necrosis.

Freiberg disease is an osteochondrosis of a metatarsal head (in the foot), and Blount disease is a growth disturbance of the tibia causing leg bowing.

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