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Discussion in 'General Issues and Discussion Forum' started by annapod, Aug 30, 2006.

  1. annapod

    annapod Welcome New Poster

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    Hi, was wondering if anyone could help me on how to find what the incidences are for onychocryptosis nails?
    ratio between medial and lateral sides?
    incidence of Hallux affected compared to lesser digits?
    any help would be great :) thanks
  2. Hylton Menz

    Hylton Menz Guest

    There's not much out there in relation to the prevalence of onychocryptosis in the general population, however some studies in older people have reported that 5-10% develop onychocryptosis:

    - Benvenuti F, Ferrucci L, Guralnik JM, Gangemi S, Baroni A. Foot pain and disability in older persons: an epidemiologic survey.J Am Geriatr Soc. 1995 May;43(5):479-84.

    -Crawford VL, Ashford RL, McPeake B, Stout RW. Conservative podiatric medicine and disability in elderly people. J Am Podiatr Med Assoc. 1995 May;85(5):255-9.

    - Dunn JE, Link CL, Felson DT, Crincoli MG, Keysor JJ, McKinlay JB. Prevalence of foot and ankle conditions in a multiethnic community sample of older adults. Am J Epidemiol. 2004 Mar 1;159(5):491-8.​

    In regard to foot type and onychocryptosis, there's been a couple of studies:

    Langford et al found that thicker nail fold widths, medial rotation of the great toe (eversion), and reduced nail thickness were prone to onychocryptosis. They also reported that the lateral nail fold had a 5 times greater chance of becoming ingrown than the medial nail fold. link

    Gunal et al found that the "Greek minus" foot (1st toe shorter than 2nd toe) and "squared foot" (1st toe equal to 2nd toe) were more likely to develop onychocryptosis. link


  3. annapod

    annapod Welcome New Poster

    Thanks heaps, that was a great help and interesting reads, esp "discrete anatomical predisposition exists in most onychocryptic nails and that the other factors act only as triggers in the development of the condition."
    :) thanks Hylton
  4. John Spina

    John Spina Active Member

    Anecdotally,most people get onychocryptosis on the hallux nail,equal medial and lateral.The reason appears to be/could be hallux limitus causing pressure on that toe(I would like to thank Dr.Bradley Backovic DPM,DO for a great article in Podiatry Today about this topic) and it appears to be exacerbated by shoes.

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