Hand, wrist, and forearm Essential projections Flashcards
Essential Projections for digits 2-5
PA
Lateral
PA Oblique
Collimation for digits 2-5
1 inch on all sides of the digit with 1 inch proximal to the MCP joint
Where does the central ray enter on digits 2-5?
At the PIP joint of the affected digit
Essential projections of the thumb
AP
Lateral
PA Oblique
Collimation for the thumb
1 inch on all sides and 1 inch proximal to the CMC joints
Where does the central ray enter for the thumb?
Perpendicular to the MCP joint
Essential projections of the hand
PA
Lateral
PA Oblique
Collimation for the hand
1 inch on all sides of hand including 1 inch proximal to ulnar styloid
Where does the central ray enter for the hand?
Perpendicular to the third MCP joint
What are the two types of lateral projections for the hand?
Fan lateral and true lateral
Essential projections of the wrist
PA Lateral PA Oblique PA ulnar deviation PA axial Tangential
Collimation for the wrist
2.5 inches proximal and distal to the wrist joint and 1 inch on the sides
What projection is the Stecher method?
PA Axial
What projection is the Gaynor hart method?
Tangential
Evaluation criteria for the PA Digits 2-5
Open IP and MCP joint spaces
Entire digit from fingertip to distal portion of adjoining metacarpal
Evaluation criteria for the Lateral Digits 2-5
No obstruction of the proximal phalanx
Open IP joint sppaces
Evaluation criteria for the PA Oblique digits 2-5
45 degree rotation
open IP and MCP joint spaces
Evaluation criteria for the AP, PA, and Lateral Thumb
distal tip of thumb to trapezium
Open IP and MCP joitns
Evaluation criteria for the PA Oblique Thumb
Distal tip of thumb to Trapezium
Proper rotation
Open IP and MCP joints
Evaluation criteria for the PA Hand
fingertips to distal Ulna and Radius
Open MCP and IP Joints
Evaluation criteria for the Oblique Hand
45 degree rotation
fingertips to distal radius and ulna
no soft tissue overlap
open MCP joints
Evaluation criteria for the lateral hand
fingertips to ditsal radius and ulna
extended digits
superimposed distal radius and ulna
thumb free of motion and superimposition
Evaluation criteria for the PA Wrist
Distal radius and ulna
proximal half of metacarpals
no rotation in carpals, metacarpals, radius, and ulna
open radioulnar joint space
Evaluation criteria for the Lateral wrist
Distal radius and ulna
proximal half of metacarpals
Superimposed radius and ulna
Superimposed metacarpals
