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The durability of the Semmes-Weinstein 5.07 monofilament

  • Author Footnotes
    1 Attending Clinician, Podiatry Service, North Chicago Veterans Administration.
    Raymond Yong
    Correspondence
    Address correspondence to: Raymond Yong, DPM, North Chicago VAMC, Surgical Service 112, 3001 Green Bay Road, North Chicago, IL 60064.
    Footnotes
    1 Attending Clinician, Podiatry Service, North Chicago Veterans Administration.
    Affiliations
    From the Catholic Health Partners Podiatric Residency Program, Chicago, IL.
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  • Author Footnotes
    2 Submitted while Podiatric Surgical Resident.
    Todd J. Karas
    Footnotes
    2 Submitted while Podiatric Surgical Resident.
    Affiliations
    From the Catholic Health Partners Podiatric Residency Program, Chicago, IL.
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  • Author Footnotes
    2 Submitted while Podiatric Surgical Resident.
    Kevin D. Smith
    Footnotes
    2 Submitted while Podiatric Surgical Resident.
    Affiliations
    From the Catholic Health Partners Podiatric Residency Program, Chicago, IL.
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  • Author Footnotes
    3 Director of Podiatric Medical Education, PSR-24, Catholic Health Partners, Chicago, IL.
    Oleg Petrov
    Footnotes
    3 Director of Podiatric Medical Education, PSR-24, Catholic Health Partners, Chicago, IL.
    Affiliations
    From the Catholic Health Partners Podiatric Residency Program, Chicago, IL.
    Search for articles by this author
  • Author Footnotes
    1 Attending Clinician, Podiatry Service, North Chicago Veterans Administration.
    2 Submitted while Podiatric Surgical Resident.
    3 Director of Podiatric Medical Education, PSR-24, Catholic Health Partners, Chicago, IL.
      This paper is only available as a PDF. To read, Please Download here.
      Peripheral neuropathy is a risk factor that predisposes diabetic patients to plantar foot ulcerations and lower extremity amputations. Clinicians have searched for a reliable, cost-effective, and simple method in the identification of diabetic patients who are at increased risk of developing plantar foot ulcers. Currently, many diabetic foot clinics utilize the Semmes-Weinstein 5.07/10 g monofilament in this identification process. Ten 5.07 monofilaments were placed in an Instron Dynamic Testing Instrument and their respective filament forces were measured utilizing a Mettler scale after being subjected to repetitive applications. After 500 cycles were performed, there was an average filament force reduction of 1.2 g. After 1500 cycles, there was still an average reduction of 1.2 g. F-testing and the Duncan test identified a significant difference between filament forces at 0, 500, 1000, and 1500 cycles. These data lead to a conclusion that continual utilization of the nylon filaments may lead to a reduced ability to accurately detect peripheral neuropathy and identify those who are at risk for the development of plantar foot ulcerations.

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      1. Rehabilitation Branch, Gillis W. Long Hansen's Disease Center, Carville, LA. Sensory Testing Nylon Filaments Instruction Booklet.