Orthopaedic Surgeon | Foot, Ankle, & Knee Specialist

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MCL Tear

MCL – Function

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The medial collateral ligament (MCL) is one of the major stabilising ligaments of the knee. It is a broad ligament found on the inside  of the knee, and its primary function is to resist force that is applied to the outside of the knee. It has attachment to the femur (thigh bone) and to the tibia (shin bone).

 

 

MCL Tear

An MCL tear is typically sustained during a collision or forceful contact on the outside of the knee. This results in an injury of various severity to the MCL. The pain is felt immediately on the inner side of the knee. The MCL can be injured in isolation, or can be injured in combination with other internal knee structures, such as the ACL.

MCL Tear – Symptoms

Dr mike smith orthopaedic knee surgeon adelaide mcl tearPatients who sustain a MCL tear, will experience acute pain on the medial (inside) of the knee joint. Associated swelling and the feeling that the knee is going to buckle (‘Instability’) are also common. The severity of symptoms correlates with the severity of the injury.

 

MCL Tear – Making the Diagnosis

In an isolated MCL injury, with a classic mechanism of injury, it can be possible to make the diagnosis on physical examination alone. The MCL’s integrity is assessed by performing a ‘Valgus stress test’ (See image). It is important to undergo a thorough assessment, as there are specific situations where further evaluation with an MRI and orthopaedic surgeon review is warranted.

MCL injury valgus stress mike smith knee specialist adelaideMRI MCL tear treatment knee surgeon adelaide recovery time

 

MCL Tear – Management

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The majority of isolated MCL tears can be managed conservatively with a range of motion knee brace. The brace restricts excessive sideways movement of the knee joint and allows the MCL to heal.

There are three main scenarios where surgical intervention may be warranted.

Tibial sided MCL tear/avulsion

MCL may have ‘flipped’ superficial to the hamstring tendons. Preventing MCL healing to bone.

Chronic grade 3 MCL injury with functional instability

Patient experiences ongoing instability following an acute injury

Multi-ligamentous knee injury

When the MCL is injured in combination with other internal knee ligaments (i.e ACL/PCL). This represents a complex knee injury.

Dr. Mike Smith and his staff can be contacted by one of the methods outlined below. If requested, all new patients will be reviewed within one week of booking an appointment. We look forward to assisting you!

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