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Lateral collateral ligament injury |
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The lateral collateral ligament is injured as part of the lateral ligament complex and rarely in isolation. It prevents postero lateral translation and medial rotation of the tibia.
Anatomy-
It extends from the head of the fibula to the lateral femoral epicondyle. It is a round band. The tendon of the biceps is closely related to it.
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| Symptoms |
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History of injury
Pain on the lateral aspect of the knee.
Inward thrust of the leg on walking.
Opening up of the lateral aspect of the knee on a varus strain.
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| Signs and investigations |
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Investigations-
Stress X rays are useful.
An examination under anaesthesia is the most useful investigation.
An MRI scan confirms the disruption of the ligament.
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| Treatment |
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In isolated cases the ligament can be repaired.
In complex lateral complex injuries reconstruction is done with hamstring tendons (semitendinosus)
Postoperative bracing is necessary
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