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Lasègue sign

Pronunciation: lah-seg'

Definition: when a subject is supine with hip flexed and knee extended, dorsiflexion of the ankle causing pain or muscle spasm in the posterior thigh indicates lumbar root or sciatic nerve irritation.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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