How to Administer 2-Point Discrimination
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- เผยแพร่เมื่อ 10 ก.พ. 2021
- Want to learn one of the most common ways to assess sensibility of the upper extremity? Or do you already know how to perform 2-point discrimination and just need a refresher? Regardless of why you are here, let us give you "The Upper Hand" on all things 2-point discrimination.
Baseline 2-point discriminator
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Disclaimer: The content in this video and description should not be taken as sole medical advice as it is intended for educational and informational purposes only. It is not intended to be a substitute for medical advice given by your MD or current occupational/physical therapist. Always seek the guidance of your doctor or licensed therapist regarding your health or any medical condition. Before performing any suggestions in this video please consult with your healthcare professional.
Thank you for this video! Learning this right now :)
Awesome! Glad you enjoyed! We have one on 2-point discrimination if that is coming up for you also!
Your MMT video was extremly helpful.
Thank you! Glad it was helpful!
I test similarly to this video description, but I would add that if you are testing for basic volar nerve sensibility (i.e. ulnar nerve compression/injury vs median nerve compression/injury) , there is no need to test medial and lateral sides of digits 1, 2, 3, or 5, as was mentioned in the video. Both the lateral and medial proper palmar digital nerves arise from the same sources: median or ulnar nerves. Like he said, the ring finger is the only significant finger to test on both sides.
If a patient had an obvious low nerve injury in the hand, like a laceration in the 2nd webspace, then it may possibly be warranted to test each side of digits 2 and 3 to help determine the extent of the injury, but it's likely not that helpful. The 2PD test is not very sensitive or reliable anyhow. I'd use the Semmes-Weinstein in that case.
I agree! The reason we taught it was due to the amount of digital nerve injuries/lacerations we see. In that case, it is very important to test both sides.
Wow amazing
Awesome video!
Thanks!!
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what is the validity and reliability of this tool according to the literature?
Awesome Video! Just a quick question tho, can you explain what is the difference/ when do you conduct between a Monofilament test and a two point discrimination test.
Great question! I usually start with Semmes Weinstein to test their ability to feel light touch. It that test is normal then I usually don’t test 2-point. However, if the test is not normal or more than 2.83 or even 3.61 then I like to follow up with 2-point. That’s just my preference though!
Thanks for the video. Very well explained. I was wondering how do you document the results of this test?
I usually just keep it simple.
For instance, static 2-point discrimination noted to be 5mm on the thumb, index and middle, and radial half of the ring finger. However, 7mm noted on the small finger and the ulnar half of the ring finger.
You rock
Thanks Rashad!