Knee injuries can be painful and life-changing. Before your car accident, you may have been able to walk, bend, drive, and go about your daily activities with little thought about whether you could stand, sit, or be pain-free. Now, your whole life has changed because of your car accident knee injury. Whether your knee was smashed against the dashboard, twisted during the collision, or injured in some other way, the impact on your life may be immediate and long-lasting.