If a doctor suspects an LCL tear, he or she will likely order an MRI and X-Rays. The doctor will also give a thorough knee examination to determine the laxity (looseness), strength, and pain points within the joint. Most LCL injuries are treated conservatively with bracing and rehabilitation. However, some surgical methods exist to repair or reconstruct the torn ligament, as well as associated tears to the smooth cartilage surfaces within the knee.Steps you can take to try to prevent LCL injury, as well as other knee injuries, include proper stretching before and after exercise and using safety equipment when appropriate. Avoiding activities that put sideways strain upon your knee will also help you avoid an LCL injury. Building up the muscles in the thigh, the quadriceps and hamstring also help to stabilize the knee and can help in decreasing your risk of injury. Wearing a stabilizing brace may also help prevent injury.