MCL Injury
An MCL injury affects the ligament on the inner side of the knee that helps stabilize the joint. It often occurs when the knee is forced inward, such as from a direct blow to the outside of the knee. MCL injuries are common in contact sports and are often less severe than ACL injuries, with many cases healing without surgery.
Quick Facts
- Common knee ligament injury affecting the inner knee
- Often caused by contact or sudden twisting
- Graded from mild (stretch) to severe (tear)
- Most cases heal without surgery
- Recovery depends on severity and activity level
Symptoms
Symptoms can vary based on severity but often include:
- Pain along the inner knee
- Swelling and tenderness
- Feeling of instability or looseness
Some people may notice stiffness or difficulty bending the knee. MCL injuries can sometimes be confused with ACL tears or meniscus injuries, especially in sports settings.
Causes
MCL injuries typically occur when force is applied to the outer knee, pushing it inward.
Common causes include:
- Direct contact during sports (football, soccer)
- Sudden twisting or pivoting movements
- Improper landing or change in direction
Risk Factors
You may be at higher risk if you:
- Participate in contact or pivoting sports, such as basketball and football
- Have a history of knee injuries
- Have poor lower body strength or stability
- Do not use proper technique during activity
Treatments
Most MCL injuries are treated without surgery.
Treatment typically includes rest, bracing, ice, and physical therapy to restore strength and stability. Activity modification is important during recovery.
Surgery may be considered in severe cases or when multiple ligaments are involved.
Recovery timelines for MCL Injuries
- Mild (Grade 1): ~1–3 weeks
- Moderate (Grade 2): ~3–6 weeks
- Severe (Grade 3): ~6–8+ weeks
When to Seek Care
Seek care if knee pain, swelling, or instability persists, or if you are unable to bear weight. Specialists, such as sports medicine specialists, orthopedic surgeons, and physical therapists, may be referred to assist.
