What occurs when a fracture receives little or no blood supply?

When a fracture receives little or no blood supply, avascular necrosis occurs. This condition refers to the death of bone tissue due to a lack of blood flow, which is critical for the maintenance and health of bone cells. Without sufficient blood supply, the bone may not heal properly, and dead bone tissue can lead to further complications, such as pain and loss of joint function.

In the context of fractures, if the blood supply is compromised as a result of the injury or the healing process, the affected bone may experience avascular necrosis. This is particularly common in certain types of fractures, such as those of the femoral head, where the blood vessels supplying the area can be damaged.

Understanding avascular necrosis emphasizes the importance of adequate blood circulation in the healing process and underscores the potential consequences of impaired blood flow following a fracture.