Items tagged “carpal bones”
14 results found
Article
Carpal bones (mnemonic)
Mnemonics of the carpal bones are numerous and useful for memorizing the order and location of the bones.
Some mnemonics name the carpal bones in a circle, starting with the proximal row from the scaphoid towards the pinky (small finger) and then the distal row starting from the hamate towards ...
Case
Pisiform fracture
Published
23 Aug 2011
71% complete
CT
Case
Trapezium fracture
Published
03 Sep 2011
77% complete
CT
Case
Triquetral fracture
Published
10 Dec 2011
44% complete
X-ray
Article
Piece of pie sign (wrist)
The piece of pie sign refers to an abnormal triangular appearance of the lunate on a PA image of the wrist representing either lunate dislocation or perilunate dislocation 1,2. A lateral image will help differentiate whether there is lunate or perilunate dislocation, with lunate dislocation demo...
Article
Spilled teacup sign (wrist)
The spilled teacup sign describes abnormal volar displacement and tilt of a dislocated lunate on lateral radiographs of the wrist 1,2. The convexity of the lunate is no longer in articulation with the distal radius while the concavity is no longer in articulation with the capitate. It is an impo...
Article
Triquetrum
The triquetrum (also known as os triquetrum or - historically - as the triangular bone) is one of the carpal bones and forms part of the proximal carpal row.
Gross anatomy
Osteology
The triquetrum is wedge-shaped carpal bone located between the lunate and the pisiform. It has an oval facet fo...
Case
Isolated capitate fracture
Published
26 Oct 2016
89% complete
MRI
CT
Case
Brachymetacarpia
Published
03 Feb 2017
91% complete
X-ray
Case
Triquetral bone fracture
Published
07 Dec 2019
79% complete
X-ray
Case
Trapezium fracture
Published
04 Mar 2020
97% complete
X-ray
Case
Carpal bones - annotated
Published
04 Mar 2022
44% complete
Annotated image
Case
Capitohamate coalition
Published
17 Oct 2022
94% complete
X-ray
Case
Volar intercalated segment instability (VISI)
Published
21 May 2023
100% complete
X-ray
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