Os paratrapezium

Dr Hamish Smith and Dr Henry Knipe et al.

Os paratrapezium is an accessory ossicle located between distal and radial aspect of the radius and the base of the 1st metacarpal 1

Differential diagnoses include loose bodies secondary to trapreziometacarpal joint osteoarthritis or secondary to trauma (e.g. Bennett's fracture) 2

Anatomy: Upper limb

Anatomy: Upper limb

Article information

rID: 25060
Section: Anatomy
Synonyms or Alternate Spellings:
  • Paratrapezium
  • Para trapezium
  • Os para trapezium

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Cases and figures

  • Case 1 - annotated image
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  • Case 2
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