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Pollicization

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Pollicization is the reconstruction of a new thumb by using one of the digits on the same hand - usually the index finger. It is indicated in a few rare situations:

  • acquired total traumatic thumb loss
  • congenital:
    • thumb hypoplasia with an absent or very unstable carpometacarpal joint
    • thumb aplasia
    • five or more fingered hand

For the congenital causes, typically pollicization is carried out before the age of two years to permit development of a prehensile grip with the reconstructed digit. After this time, compensatory grips may develop eg side-to-side pinch patterns between the index and middle fingers. Ideally, the index finger that is transferred is not too stiff as this will affect its function in the recipient site.


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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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