A minor knee injury, also known as a sprain, is an injury to the ligaments in the knee joint. It is usually caused by a sudden twist or force on the knee joint, which can stretch or tear the ligaments. The most common symptom of a minor knee injury is pain and swelling around the knee joint. Treatment for a minor knee injury typically includes rest, ice, compression, and elevation. In some cases, physical therapy may be recommended to help strengthen the muscles around the knee joint. The term 'SCRAPE' is used to describe a minor abrasion or cut on the skin.