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A multidisciplinary review of triphalangeal thumb.

  • Author(s): Potuijt, Jacob WP
  • Galjaard, Robert-Jan H
  • van der Spek, Peter J
  • van Nieuwenhoven, Christianne A
  • Ahituv, Nadav
  • Oberg, Kerby C
  • Hovius, Steven ER
  • et al.
Abstract

Despite being a rare congenital limb anomaly, triphalangeal thumb is a subject of research in various scientific fields, providing new insights in clinical research and evolutionary biology. The findings of triphalangeal thumb can be predictive for other congenital anomalies as part of an underlying syndrome. Furthermore, triphalangeal thumb is still being used as a model in molecular genetics to study gene regulation by long-range regulatory elements. We present a review that summarizes a number of scientifically relevant topics that involve the triphalangeal thumb phenotype. Future initiatives involving multidisciplinary teams collaborating in the field of triphalangeal thumb research can lead to a better understanding of the pathogenesis and molecular mechanisms of this condition as well as other congenital upper limb anomalies.

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