What should be done if there is a peripheral pulse present in a knee fracture?

When there is a peripheral pulse present in a knee fracture, it indicates that blood circulation to the area is intact. This presence of a pulse suggests that the fracture might not be displaced significantly or causing major vascular compromise. In such cases, the appropriate action is to splint the injury in the position found, using pillows or other supportive materials. This helps stabilize the fracture and prevent further injury to surrounding tissues without causing additional trauma from moving the joint or applying excessive pressure.

Immobilizing the knee in the position found also minimizes movement that could exacerbate any potential soft tissue damage, and maintains alignment to facilitate healing. Applying a full cast would be inappropriate at this stage, as it does not allow for the necessary evaluation of the injury and could lead to complications if the swelling increases. Moving the knee into a straight position could further aggravate the fracture, especially if the alignment is disturbed. A tourniquet should only be used in cases of life-threatening hemorrhage, which is not indicated when there is a peripheral pulse. Thus, the approach of splinting in the position found is the most appropriate and safe choice in this scenario.