![]() ![]() ![]() Avulsion injuries do not involve the syndesmosis and the ankle remains stable. This results in either a pure ligamentous injury (complete or partial tear) or avulsion of the tip of the fibula (the lateral malleolus). A pure inversion injury will result in tension being applied to the supporting soft tissues of the lateral ankle, particularly the lateral collateral ligament. Most ankle injuries occur because of an inversion injury. Pathology EtiologyĪnkle fractures may be the result of a vast array of injuries that range from an inversion injury to a complex high energy trauma sporting injury. inability to bear weight both immediately after injury and during clinical examinationĪn ankle x-ray series (AP and lateral views) is usually all that is needed to make a diagnosis.point tenderness at the posterior edge or tip of the medial malleoulus.point tenderness at the posterior edge or tip of the lateral malleoulus.The Ottawa ankle rules allow evidence-based decision making regarding the need for plain radiographs in patients with a traumatic ankle injury.Ī plain film radiograph is indicated in the setting of trauma if there are any of the following clinical examination findings 1: Most patients present following an episode of trauma with ankle pain, tenderness and an inability to weight bear. Risk factorsĬigarette smoking and obesity are both risk factors for ankle fractures. motor vehicle accident, sporting injury), while older patients present following minor trauma (e.g. Young patients present following injuries in relatively high-energy trauma (e.g. Ankle injuries, like many fractures have a bimodal distribution. ![]()
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