Definition: The word "arthrotrauma" comes from Greek and literally means "broken bone." It refers to an injury in which a bone breaks down, becoming displaced or fragmented. Definition: Arthrotrauma is a type of medical condition that involves a severe disruption or damage to the ligaments, tendons, muscles, or other soft tissues in the knee joint. The main symptoms include pain and swelling around the injured area, along with bruising, stiffness, and difficulty moving the joint. In some cases, arthrotrauma may also cause inflammation, nerve damage, or deformity of the affected knee.