Carpal Tunnel Syndrome

by Kevin Pei, MD

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    00:01 How do we manage carpal tunnel syndrome? Medically, we offer occupational and physical therapy.

    00:10 Wrist splinting to a neutral position may be helpful.

    00:14 Remember those wrist rests that people use on keyboards.

    00:18 It’s partly to try to reduce the incidence of carpal tunnel syndrome.

    00:22 Sometimes, steroid is injected into the region for symptomatic relief If necessary, or the clinical symptoms deteriorate, we can offer surgery.

    00:35 This is usually for the patients who have severe carpal tunnel syndrome.

    00:39 Severe carpal tunnel syndrome can be described by EMG (or electromyographs).

    00:47 Here, we evaluate the actual conduction of the nerve and whether or not there's truly compression of the median nerve.

    00:54 We release the transverse ligament, allowing the carpal tunnel syndrome to relieve in terms of symptoms, but it may not be as helpful if the previous EMG demonstrates that there was now full compression of the median nerve.

    01:10 Here's that demonstration of the EMG.

    01:13 Multiple electrodes are placed over the distributions of the median and radial nerves.

    01:20 Here's a picture of a transverse ligament release.

    01:23 Note the palmar area is exposed surgically.

    01:28 With full release of the transverse ligament, the median nerve should no longer be compressed.

    01:32 Symptomatic relief is usually fairly immediate.

    01:40 Now, let's visit some important clinical pearls and high-yield information.

    01:45 Individually, each of the classic physical signs has low sensitivity and specificity for carpal tunnel.

    01:51 As a unit, it’s usually highly diagnostic.

    01:55 Remember the classic presentation and don't forget the distribution of the median nerve.

    02:03 Sensory loss with median nerve impingement, again, to remind you include palmar aspects of digits one, two and three and the radial half of the fourth digit.

    02:12 Thank you for joining me in this discussion of carpal tunnel syndrome.

    About the Lecture

    The lecture Carpal Tunnel Syndrome by Kevin Pei, MD is from the course Special Surgery.

    Included Quiz Questions

    1. Tinel's sign
    2. Phalen's sign
    3. Trousseau's sign
    4. Chvostek's sign
    5. Durkan's sign
    1. Tingling of the small finger
    2. Tingling of the radial 3 and a half digits
    3. Decreased grip strength
    4. Numbness
    5. Muscle atrophy

    Author of lecture Carpal Tunnel Syndrome

     Kevin Pei, MD

    Kevin Pei, MD

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