Overview

The medial collateral ligament is a band of tissue on the inside of the knee. It connects the thigh bone to the bone of the lower leg. It keeps the knee from bending inward. You can sprain or tear the ligament during activity that involves bending, twisting, or a quick change of direction. The ligament is often injured in football or soccer when the outside of the knee is hit.

You can treat minor injuries with home care. Your doctor may suggest you wear a brace that helps support your knee. A severe tear may need surgery.

How can you care for yourself at home?

• Put ice or a cold pack on your knee for 10 to 20 minutes at a time. Try to do this every 1 to 2 hours for the next 3 days (when you are awake) or until the swelling goes down. Put a thin cloth between the ice and your skin.
• Prop up your leg on a pillow when you ice it or anytime you sit or lie down during the next 3 days. Try to keep it above the level of your heart. This will help reduce swelling.
• Follow instructions about how much weight you can put on your leg and how to walk with crutches, if your doctor recommends them.
• Ask your doctor if you can take an over-the-counter pain medicine, such as acetaminophen (Tylenol), ibuprofen (Advil, Motrin), or naproxen (Aleve). Be safe with medicines. Read and follow all instructions on the label.
• Do not take two or more pain medicines at the same time unless the doctor told you to. Many pain medicines have acetaminophen, which is Tylenol. Too much acetaminophen (Tylenol) can be harmful.
• Wear a brace, if your doctor recommends it, to support your knee while it heals. Wear it as directed.
• Do stretches or strength exercises your doctor suggests.