Fingers, hand, wrist, forearm + elbow

Question 1

Basic wrist projections

Answer 1

PA wrist
Lateral wrist

Question 2

Scaphoid series

Answer 2

PA with ulnar deviation
Oblique
Lateral
PA Ulnar deviation cranial angulation

Question 3

Sample adult exposure factors PA wrist

Answer 3

55kVp 1.6mAs

Question 4

Sample adult exposure factors lateral wrist

Answer 4

57kVp 1.6 mAs

Question 5

Basic forearm projections

Answer 5

AP forearm
Lateral forearm

Question 6

Adult exposure factors AP forearm

Answer 6

60kVp 1.6mAs

Question 7

Adult exposure factors lateral forearm

Answer 7

60kVp 1.6mAs

Question 8

Basic elbow projections

Answer 8

AP elbow
Lateral elbow

Question 9

Supplementary elbow projection

Answer 9

Radial head series

Question 10

Centering for PA wrist

Answer 10

Midway between radial and ulnar styloid processes perpendicular to IR

Question 11

Collimation for PA wrist

Answer 11

Proximal 2/3 of metacarpals to distal 1/3 of radius and ulna, skin margins laterally

Question 12

Centering for lateral wrist

Answer 12

Radial styloid process perpendicular to IR

Question 13

AVN

Answer 13

Avascular necrosis

Question 14

POP

Answer 14

Post operative pain

Question 15

Centering for AP forearm

Answer 15

Vertical beam midway between radial and ulnar styled processes

Question 16

Collimation for AP forearm

Answer 16

Include elbow joint proximally, wrist distally including base of metacarpal bones and lateral skin margins

Question 17

Don’t do forearm in PA position because …

Answer 17

Radius + ulna cross over

Question 18

Centering point for lateral forearm

Answer 18

Vertical beam is centered midway between wrist + elbow

Question 19

Collimation for lateral forearm

Answer 19

Skin borders anteriorly and posteriorly
Proximally: numeral epicondyles
Distally: base of metacarpals

Question 20

Centering point for lateral elbow

Answer 20

Vertical beam over lateral epicondyle of humerus

Question 21

Collimation for lateral elbow

Answer 21

Include distal 1/3 of humerus, proximal 1/3 of radius + ulna, skin borders anterior and posterior

Question 22

Centering for AP elbow

Answer 22

Vertical beam is centered to elbow joint 2,5 cm distal to line joining epicondyles, in the midline.

Question 23

Collimation for AP elbow

Answer 23

Distal 1/3 of humerus, proximal 1/3 of radius and ulna, skin borders anterior and posterior

Question 24

Adult exposure factors AP elbow

Answer 24

60kvp 1.6mas

Question 25

Adult exposure factors lateral elbow

Answer 25

60kvp,1,6mas

Question 26

Radial head series

Answer 26

Projection 1: standard lateral with lateral hand position
Projection 2: hand rotated medially until palm rests on table
Projection 3: hand rotated further medically until palm faces away from body

Question 27

Centering for radial head series

Answer 27

Lateral epicondyle of humerus

Question 28

Collimation for radial head

Answer 28

Distal 1/3 of humerus, proximal 1/3 of radius and ulna, skin borders anterior and posterior

Question 29

MOI

Answer 29

Mechanism of injury

Question 30

Colles fracture

Answer 30

Fracture of distal radius + posterior displacement

Question 31

Greenstick fracture

Answer 31

Pediatric
Incomplete fracture where the bone bends and “splinters”

Question 32

Torus fracture

Answer 32

Incomplete fracture creating a buckle of the cortex

Question 33

Contrecoup fracture

Answer 33

Force on one side of forearm may result in injury to the opposite side

Question 34

Sail sign

Answer 34

Indicates presence of elbow joint effusion

Question 35

Supracondylar fracture

Answer 35

Pediatric
Fracture distal humerus often posterior displacement

Question 36

Radial head fracture

Answer 36

FOOSH with elbow flexion