X-ray of polydactyly

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Revision as of 13:34, 28 January 2019 by Mikael Häggström (talk | contribs) (→‎Evaluation: +Duplication)
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Author: Mikael Häggström [notes 1]

File:Polydactyly ECS.jpg
Polydactyly of the hand.

Choice of modality

X-ray is generally the initial choice.

Evaluation

  • Number of supernumerary digits.[1]
  • Structure of the attachment site, for example forming a joint at a certain metacarpo/metatarso-phalangeal or interphalangeal level.
  • Duplication is where it is difficult to structurally distinguish any supernumerary digit from the "normal" digit that shares the same proximal attachment site.
  • Fusion of even the distal parts of a supernumerary digit (syndactyly) is called polysyndactyly.[2]
  • Development as compared to "normal" digits
  • Any other abnormality in the projected skeleton, since the condition is associated with many syndromes.[1]

It is also appreciated to state:

  • Angulation of the most proximal part of the supernumerary digit.

Notes

  1. For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Radlines:Authorship for details.

References

  1. 1.0 1.1 Dr Daniel J Bell and Dr Yuranga Weerakkody. Polydactyly. Radiopaedia. Retrieved on 2019-01-28.
  2. Dr Mark Thurston. Polysyndactyly. Radiopaedia. Retrieved on 2019-01-28.