Froment's sign presents after damage to the ulnar nerve, which innervates the adductor pollicis and interossei muscles, which provide adduction of the thumb and extension of the interphalangeal joint.

The Froment sign is a clinical test used to evaluate ulnar nerve motor weakness, particularly the adductor pollicis muscle. This sign helps identify ulnar nerve entrapment at the elbow or wrist.

Froment sign is a special test of the wrist for palsy of the ulnar nerve, specifically, the action of adductor pollicis. [1] To perform the test, a patient is asked to hold an object, usually a flat object such as a …

A positive Froment's sign occurs when the patient flexes the thumb interphalangeal joint in order to maintain an adequate pinch against resistance.

Learn the difference between Froment’s sign and Jeanne’s sign in ulnar palsy in this HandLab Clinical Pearl.

When the ulnar nerve is injured, the adductor pollicis function is lost and thumb adduction will not occur. The Froment’s Sign is used to test the function of the adductor pollicis muscle.

Jan 10, 2024 · In the world of clinical diagnostics, Froment's sign is a subtle yet powerful tool that clinicians employ to uncover ulnar nerve dysfunction. Named after the French neurologist Jules …

Mar 3, 2022 · The Froment’s sign test is performed to determine the presence of an ulnar nerve injury. Bending the thumb when pinching a piece of paper is a sign of an ulnar nerve injury.

Froment’s sign is a test for Ulnar Nerve palsy, specifically testing the action of Adductor Pollicis. To perform this test, ask the patient to hold a piece of paper in between her thumb and index finger and …

Froment, Jules, Lyon physician, 1878-1946. Froment sign - flexion of the distal phalanx of the thumb when a sheet of paper is held between the thumb and index finger in ulnar nerve palsy.