Wrist and Fingers Flashcards
What is the most common carpal injury?
Scaphoid
What is the second most common carpal injury?
Triquetral chip fracture
What is the third most common carpal injury?
Hamate
The majority of scaphoid fractures (70%) occur where?
Waist (middle 1/3)
Where would a patient with a scaphoid fracture point to an area of pain?
Snuffbox
There is a higher likelihood of complications when a scaphoid fracture is in which direction?
More posterior
What is the best view to assess a scaphoid fracture?
P-A with ulnar deviation (flexion)
How does an area of scaphoid AVN occur on plain film?
Area of white density
What is the name of the sign where a large gap is seen between the lunate and scaphoid?
Terry Thomas sign
What X-ray view is used for a triquetral fracture?
Only lateral
What usually causes a triquetral fracture?
Avulsion from ligaments
What is a big sign on X-ray for a hamate fracture?
No hook present
What is the most common carpal dislocation?
Perilunate dislocation
What is the second most common carpal dislocation?
Lunate dislocation (anterior)
In what type of carpal dislocation does everything move relative to the lunate?
Perilunate
What is the normal amount of joint space between the carpal bones?
1-2 mm
What is the mechanism of injury for a perilunate dislocation?
FOOSH
What is a common fracture to be associated with a perilunate dislocation?
Scaphoid (75%)