A Medial Collateral Ligament (MCL) injury is sprain or tear of the MCL. This ligament is a band of tissue that connects the femur (thighbone) to the lower leg (tibia) on the inside of the knee. The primary function of the MCL is to prevent the knee from bending inwards, also known as a valgus force. The ligament also helps increase the stability of the knee joint.
There are different ways through which the MCL can get injured. The most common ways are through the twisting of the knee while the leg is anchored to the ground, wrong landing from a jump or a direct force from the outside of the knee. This mainly occurs during sports when the opponent hits the knee from the outside.
Your doctor or physiotherapist may recommend you get further imaging done such as an X-ray scan or an MRI to confirm the diagnosis of an MCL injury. The X-ray shows the condition of the bones in the affected area while the MRI scan shows the soft tissue structures in the knee such as the ligaments.
The treatment of the MCL injury usually depends on the severity of the injury. For mild ligament injuries, treatment may include:
Applying ice to the knee.
Splinting/ knee brace.
Limiting physical activity that may strain the knee until the swelling and pain have reduced.
Specific exercises that help regain the knee range of motion and strengthen the surrounding muscles.
For more severe MCL injuries, such as a grade III rupture, surgery may be considered to repair or reconstruct the ligament.
Strictly follow the instructions from your physiotherapist for a quick recovery, especially regarding rest from play.
Avoid putting too much strain on the recovering leg in the initial stages.
Continue your exercises as prescribed by your therapist!
You can reduce your risk of having an MCL injury in the following ways:
Following sports safety guidelines for adults and children.
Regular stretching.
Strengthening the leg muscles that help stabilise the knee joint.
It is important to remember that recovery depends on many factors including the extent of the injury and whether it is managed conservatively or surgically. However, generally:
A grade I and II MCL injury can take 3-6 weeks for full recovery.
A grade III injury may take 3-4 months to recover fully.
Following your physiotherapist’s instruction is vital to a timely recovery of an MCL injury.