How long it takes to recover from a traumatic knee injury depends on the extent of the injury and the specific diagnosis. In the case of patients with soft tissue contusions or femoral contusions, recovery is usually 2-3 weeks. If there is a combined meniscal injury or ligament injury within the knee, it depends on whether surgery is required, and the recovery time differs between surgery and conservative treatment. The knee joint is a common site of injury in daily life or sports. Once swelling of the joint, difficulty in walking and unfavorable walking occur after knee trauma, you should go to the hospital as soon as possible to determine the cause, make a clear diagnosis, proceed to the next step of treatment and develop a reasonable treatment plan.