To help answer those questions we put together the following list of definitions for what each degree acronym stands for as well as explanations of the meanings behind all the different terminology. Here's a breakdown of some of the acronyms you'll find out there:
Meniscus Tears. Information on meniscus tears is also available in Spanish: and Portuguese: . Meniscus tears are among the most common knee injuries. Athletes, particularly those who play contact sports, are at risk for meniscus tears. However, anyone at any age can tear a meniscus. When people talk about torn cartilage in the knee, they are usually referring to a torn meniscus.
Symptoms. Symptoms of a severe and sudden (acute) anterior cruciate ligament (ACL) injury include: 1  Feeling or hearing a pop in the knee at the time of injury.2  Sudden instability in the knee. 3  Pain on the outside and back of the knee. 4  Knee swelling within the first few hours of the injury. 5  Limited knee movement because of swelling and/or pain.ther health problems can cause symptoms like those of an ACL injury. They include a bone break or injuries to the knee cushions (menisci) or to other ligaments in the knee. For more information on knee injuries, see: 1  Knee Problems and Injuries.