UMEM Educational Pearls

Title: Froment's Sign

Keywords: Ulnar nerve (PubMed Search)

Posted: 9/9/2018 by Brian Corwell, MD (Updated: 4/19/2024)
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Froment’s Sign

Tests for motor weakness of the Ulnar nerve

Patient asked to hold piece of paper in both hands, grasping with the thumb and radial side of index finger of both hands

Examiner then pulls on the paper

Test is positive if patient flexes the thumb IP join in an attempt to hold onto paper