Items tagged “wrist”
199 results found
Article
Os triangulare
The os triangulare (also known as the os intermedium antebrachii or os triquetrum secundarium) is an accessory ossicle located between the ulnar styloid, lunate and triquetrum 1,2.
They may be unilateral or bilateral and the main differential diagnosis is non-union of an ulnar styloid process f...
Article
Os paratrapezium
Os paratrapezium is an accessory ossicle located between distal radial aspect of the trapezium 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.
Case
Os radiostyloideum and triquetral fracture
Published
02 Oct 2013
86% complete
X-ray
Annotated image
Article
Os radiostyloideum
Os radiostyloideum (or persistent radial styloid) is an accessory ossicle of the wrist located adjacent to the radial styloid process and lateral to the mid-portion of the scaphoid.
This should not be confused with another bony ossicle in the wrist, os styloideum (part of a carpal boss), which...
Case
Triangular fibrocartilage complex tear with scapholunate advanced collapse and dorsal intercalated segment instability
Published
17 Oct 2013
87% complete
X-ray
MRI
Case
TFCC injury - Palmer 1b
Published
19 Oct 2013
77% complete
MRI
Case
Scaphoid fracture with dorsal intercalated segment instability
Published
25 Oct 2013
95% complete
MRI
Case
Smith fracture
Published
07 Nov 2013
88% complete
X-ray
Article
Lunate
The lunate (os lunatum or semilunar) is one of the carpal bones and is a component of the proximal carpal row.
Gross anatomy
Osteology
The lunate is crescent-shaped with a proximal convex articular facet and a distal concave articular facet. On the medial surface is a square-shaped facet and ...
Case
Rheumatoid arthritis - wrist
Published
01 Feb 2014
77% complete
MRI
Case
Os triangulare
Published
20 Feb 2014
85% complete
X-ray
Article
Lunula
The lunula is an accessory ossicle of the wrist. It lies in the TFCC, between the tip of the ulna styloid process and the triquetrum. It may be fused to the ulna styloid, giving it an elongated appearance.
Differential diagnosis
os triangulare: lies more radial
ulna styloid fracture
persist...
Case
Widened scapholunate interval
Published
23 Apr 2014
79% complete
X-ray
Case
Calcium pyrophosphate deposition arthropathy wrist
Published
01 Jul 2014
72% complete
X-ray
Case
Scapholunate dissociation and distal radius fracture
Published
25 Sep 2014
94% complete
X-ray
Case
Distal scaphoid tubercle fracture
Published
24 Oct 2014
88% complete
X-ray
Article
Scapholunate interval
The scapholunate interval or gap is the radiographic measurement of the scapholunate joint and widening is indicative of a scapholunate ligament injury.
Measurement
The scapholunate interval should be measured between the midportion of the scaphoid and lunate on neutral PA, Moneim, PA ulnar de...
Case
Type II lunate with hamatolunate impingement
Published
31 Oct 2014
95% complete
MRI
Case
Scaphotrapeziotrapezoidal and 1st carpometacarpal arthritis
Published
12 Nov 2014
88% complete
X-ray
Case
Scapholunate advanced collapse (SLAC)
Published
24 Nov 2014
92% complete
X-ray
Annotated image
MRI