Knee Injury First Aid Steps. Doing so may aggravate the injury. Doing so may aggravate the injury try to sit without much movement in a comfortable position arrest or control any bleeding using a clean cloth and by applying direct pressure if necessary.

First aid for knee injuries in the first 48 to 72 hours Suggestions for first aid treatment of an injured knee include. The goal is to flush out any dirt and germs that have already made their way into the wound and under the skin. However it is necessary to apply basic first aid on knee injuries if possible to lessen the damage.
This puts less strain on the knee.
The first step is to wash or irrigate the wound with at least half a liter of clean water. Use an elastic bandage and start wrapping it around the knee. First aid for knee injuries in the first 48 to 72 hours Suggestions for first aid treatment of an injured knee include. DO NOT move the knee joint immediately after the injury.