What is the immediate action to take with a fracture deformity associated with vascular compromise?

When faced with a fracture deformity that is associated with vascular compromise, using in-line traction to correct the deformity is crucial. This action helps realign the fractured bones and can relieve pressure on surrounding soft tissues and blood vessels. By properly aligning the fracture, in-line traction can restore blood flow, thereby addressing the vascular compromise that may lead to complications such as tissue necrosis or loss of limb.

Immediate intervention is critical in this scenario, as delayed treatment can exacerbate the vascular insult and lead to worse outcomes for the patient. Other options, such as applying a cast or merely immobilizing and observing the fracture, do not address the potential for further vascular damage and may allow the situation to deteriorate. Surgical intervention might eventually be necessary, but it is often not the immediate action to take unless there is an urgency that cannot be managed by non-invasive measures like traction. Thus, utilizing in-line traction effectively prioritizes vascular integrity while preparing for further management of the fracture.