Key facts
- Articulations
- Articulates with four bones:, scaphoid proximally, second metacarpal distally, trapezium bone laterally, capitate medially
- Latin
- os trapezoideum, os multangulum minus
- Mesh
- D051223
- Ta98
- A02.4.08.010
via Wikipedia infobox
Research
547 papers- Trapezoid bone fracture.Annals of plastic surgery · 2000
- Scaphotrapezium-trapezoid arthrosis.The Journal of hand surgery · 2012
- [Fracture of the trapezoid bone].Ugeskrift for laeger · 1990
- [Osteoma osteoid of the trapezoid bone: a case-report and review of the literature].Chirurgie de la main · 2005
- Arthroscopic Management of Scaphoid-Trapezium-Trapezoid Joint Arthritis.Hand clinics · 2017
via PubMed
~3 min read
Encyclopedic overview
The trapezoid bone (lesser multangular bone) is a carpal bone in tetrapods, including humans. It is the smallest bone in the distal row of carpal bones that give structure to the palm of the hand. It may be known by its wedge-shaped form, the broad end of the wedge constituting the dorsal, the narrow end the palmar surface; and by its having four articular facets touching each other, and separated by sharp edges. It is homologous with the "second distal carpal" of reptiles and amphibians.
Structure
Excerpted from Wikipedia’s “trapezoid bone” article, available under the CC BY-SA 4.0 licence.