Which type of fracture is most commonly associated with delayed union due to poor perfusion?

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The association of delayed union with poor perfusion is particularly significant in fractures of the tibia and fibula. This is largely because the blood supply to the lower leg bones, especially the tibia, is relatively limited compared to other areas of the body. The tibia, being a long bone, relies heavily on the periosteum for its vascular supply, and when fractured, especially in the case of severe trauma or open fractures, this supply can be compromised, leading to inadequate healing due to insufficient blood flow.

Delayed union occurs when a fracture takes longer than the expected healing time, which can happen because of a lack of adequate blood supply that is crucial for delivering necessary nutrients and cells involved in the healing process. In the case of tibia and fibula fractures, factors such as the location of the fracture, the severity of the injury, soft tissue damage, and surrounding vascular supply all contribute to the risk of delayed union.

Pelvic fractures, while they can have significant complications, usually involve a better vascular supply from surrounding structures. Humerus fractures, particularly those in the proximal region, can also have adequate blood flow from the surrounding musculature. Spinal fractures, depending on their nature and location, may not present the same concern for perf

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