What does Semmes-Weinstein monofilament test measure?

The Semmes-Weinstein monofilament (SWM) testing is one of the clinical tests that measures the response to a touching sensation of the monofilaments using a numerical quantity.

How do you test for monofilament?

Hold the monofilament perpendicular to the foot and with a smooth, steady motion, touch the skin until the monofilament bends approximately 1 cm (see Diagram A). Hold it against the skin for approximately 2 seconds. 7. Using the monofilament , randomly test 10 sites on each foot as indicated in Diagram B.

Who created the Semmes-Weinstein monofilament test?

Semmes–Weinstein monofilaments are a semi-quantitative test of sensory loss. The idea, developed by Josephine Semmes and Sidney Weinstein, was to measure touch-pressure in a standardized way by controlling the force of an applied stimulus to the skin [1].

What does a positive monofilament test mean?

EVIDENCE-BASED ANSWER. Abnormal monofilament testing has positive likelihood ratios >7 and negative likelihood ratios ranging from 0.07 to 0.61 for diagnosing neuropathy in patients with diabetes.

What does a monofilament test for?

Monofilament testing is an inexpensive, easy-to-use, and portable test for assessing the loss of protective sensation, and it is recommended by several practice guidelines to detect peripheral neuropathy in otherwise normal feet.

How many times can you use a monofilament?

Ideally, in clinical practice you should alternate between two monofilaments. As a general guide it should be replaced every 6 months for frequent use and 12 months for infrequent use. Also, it should be replaced if the filament becomes damaged or bent.

Where is monofilament test used?

The examination should be done in a quite and relaxed setting and the patient should not be able to see if and where the examiner applies the filament. First apply the monofilament on the inner wrist so the patient knows what to expect.

What is 10g monofilament test?

The 10g monofilament is an objective, simple instrument used in screening the diabetic foot for loss of protective sensation. It is important that a properly calibrated device is used to ensure that 10g of linear pressure are being applied so a true measurement is being assessed.

How do you use monofilament?

Show the monofilament to the patient and touch it to his/her hand or arm so that he/she knows it does not hurt. Use the 10 gram monofilament to test sensation at the indicated sites on each foot as shown. Apply the monofilament along the perimeter of and NOT on an ulcer, callous, scar, or necrotic tissue.

Why is the 5.07 monofilament test used?

As a quantitative sensory test, a monofilament is used to test a single point of touch pressure. A 5.07/10 g monofilament is used to screen for the presence or absence of protective sensation [12, 13]. Several studies have explored whether a monofilament test is a useful screening tool for the early detection of DPN.

How do you do a 10g monofilament test?

(The patient should sense the monofilament by the time it bows.) Hold the monofilament in place for about 1 second. Press the monofilament to the skin so it buckles at one of two times as you say “Time one” or “Time two.” Have the patient identify at which time he or she was touched.

What is a positive monofilament test?

Monofilament Test Definition, Positive, Negative, Interpretation, Scoring. Monofilament test is performed to check the sensitivity of peripheral nervous system. It is a cheap and easy to use method for testing peripheral sensitivity.

What is a monofilament exam?

Monofilament test is a gold standard test. The monofilament test strand made of nylon is used to touch the base of the effected limb, if the patient feel pain on touching the monofilament, then the patient condition can be recovered with medications and some strict preventions.

What is filament testing?

filament test. Definition. (Noun) A test used to check the touch sensation by a thin nylon filament hat rubs against the sole of your foot. This test uses a monofilament made up of nylon. Normally the test is used to assess if there is any peripheral neuropathy that is going on in a diabetes patient.