Tear or stretch of knee ligaments (ACL, MCL, LCL, PCL) due to sudden twisting, pivoting, or impact.
Step-by-Step Guidance
Do not try to walk. Sit or lie down and keep the knee slightly bent and supported.

Apply ice wrapped in a towel to the front and sides of the knee for 20 minutes.

Apply an elastic bandage around the knee. Start below the joint, wrap in overlapping spirals, and end above the joint.

Prop the leg up on cushions, ensuring the knee is elevated higher than the hip.

If moving is necessary, use crutches or support to prevent knee buckling.

4 - 12 weeks
Timeline is typical for uncomplicated healing. Always follow doctor guidance.