froments sign
Andrew Henderson
Updated on June 09, 2026
Froment sign is Positive if the paper is pulled away by the examiner because of weakness or loss of function in adductor pollicis muscle, where the patient flexes the thumb interphalangeal joint in an attempt to hold on to paper (due to contraction of the flexor pollicis brevis, which is supplied by the median nerve).
What nerve lesion is associated with a positive Froment’s sign?
6 What is the significance of a positive Froment’s sign? Ulnar nerve lesions result in a significant loss in hand grip strength. Weakness of the adductor pollicis, flexor pollicis brevis, and first dorsal interosseous muscles sharply impairs the pinching power of the thumb against the index finger.
What is a positive Tinel’s sign?
A positive Tinel sign means that tapping your nerve causes a tingling sensation to radiate through that area of your body. It’s sometimes described as a pins and needles feeling. The Tinel sign shows there’s damage in the nerve.
How do you examine ulnar nerve?
Perform an elbow flexion test – This test, generally considered the best diagnostic test for cubital tunnel syndrome, [101, 102] involves having the patient flex the elbow past 90°, supinate the forearm, and extend the wrist; results are positive if discomfort is reproduced or paresthesia occurs within 60 seconds.
What is Froment’s maneuver?
With Gardère, Froment described enhanced resistance to passive movements of a limb about a joint that can be detected specifically when there is a voluntary action of another contralateral body part. This has been designated in the literature as the “Froment’s maneuver ” and the activation or facilitation test.
What is Froments?
Froment’s sign is a special test of the wrist for palsy of the ulnar nerve, specifically, the action of adductor pollicis. Froment’s maneuver can also refer to the cogwheel effect from contralateral arm movements seen in Parkinson’s disease.
What is Jeanne’s sign?
Loss of lateral or key pinch of thumb due to paralysis of adductor pollicis muscle, which adducts, flexes at the MCP joint and extends at the IPJ.
What is anterior interosseous nerve syndrome?
Anterior interosseus syndrome is an isolated palsy of flexor pollicus longus, the index and long fingers of the flexor digitorum profundus, and the pronator quadratus muscles of the forearm. It manifests as pain in the forearm accompanied commonly by the weakness of the index and thumb finger pincer movement.
How do you test for ulnar palsy?
Ultrasound. Your doctor may use an ultrasound to evaluate the ulnar nerve and the soft tissue of the cubital tunnel, which allows the ulnar nerve to travel behind the elbow. During an ultrasound scan, high-frequency sound waves bounce off parts of the body and capture the returning “echoes” as images.
What is Honeymoon palsy?
Saturday night palsy classically involves an individual falling asleep with the arm hanging over a chair or other hard surface, leading to compression within the axilla. Honeymoon palsy, on the other hand, refers to an individual falling asleep on the arm of another and consequently compressing that person’s nerve.
What is claw hand?
Claw hand is a condition that causes curved or bent fingers. This makes the hand appear like the claw of an animal. Claw hand is a hand characterized by curved or bent fingers, making the hand appear claw-like.
What is Wartenberg’s syndrome?
Wartenberg’s Syndrome is described as the entrapment of the superficial branch of the radial nerve with only sensory manifestations and no motor deficits. In this condition, the patient reports pain over the distal radial forearm associated with paresthesia over the dorsal radial hand.
What causes ape hand?
Ape hand is usually the result of median nerve palsy, which is commonly caused by deep injury to the wrist or forearm. This can impair the function of the thenar muscles.
What is Igawa test?
Igawa’s Sign. This is a quick test to assess the interossei. The patient is made to place the hand on the table and asked to raise the middle finger and move it side to side. If the interossei are paralyzed he is not able to do so (Figure 4.1. 9).
What is cogwheel rigidity in Parkinson’s?
The muscles become stiff and the body no longer moves smoothly. When movement becomes jerky, it is called cogwheel rigidity, and when stiffness continues, it is called lead-pipe rigidity.