Wrist Misc. Flashcards
Where is the CR for a PA ulnar deviation wrist?
Perpendicular to scaphoid
What is the SID used for wrist views?
40”
What are the structures seen for a PA ulnar deviation wrist?
- Scaphoid best demonstrated without superimposition
- No rotation of carpals, metacarpals, radius, or ulna
How is the CR angles for a PA axial scaphoid wrist?
20 degrees cephalic
What is another name for a PA axial scaphoid wrist?
Stetcher method
Where is the CR for a PA axial scaphoid wrist?
20 degrees cephalic entering at the scaphoid
What are the structures seen for a PA axial scaphoid wrist?
- Scaphoid best demonstrated without superimposition
- No rotation of carpals, metacarpals, radius, or ulna
What is the angled for a Tangential wrist?
25 - 30 degrees proximal to long axis of hand
What is another name for the Tangential wrist?
Carpal canal or Gaynor-hart method
How is the wrist positioned for a Tangential wrist?
hyperextended
Where is the CR for a Tangential wrist?
1” distal to base of 3rd metacarpal
What are the structures seen for a Tangential wrist?
- Demonstrates carpal canal
- Palmar aspect and tubercle of trapezium seen
- Visualizes the scaphoid, capitate, hook of hamate, triquetrum, and entire pisiform
- Pisiform in profile and free of su[erimposition
- Helpful in identifying fractures of the hook of hamate, pisiform, and trapezium
