Wrist images

Question 1

PA wrist

Answer 1

Perp to the midcarpal area

Distal radius and ulna, carpals, and proximal half of metacarpal

Open radioulnar joint space

Question 2

LAT wrist

Answer 2

Perp to the midcarpal area

Distal radius and ulna, carpals, and proximal half of metacarpals

Superimposed distal radius and ulna

Superimposed metacarpals

Question 3

Lat oblique wrist

Answer 3

Perp to the midcarpal area

pt angle 45

Distal radius and ulna, carpals, and proximal half of metacarpals

45-degree rotation of anatomy

Slight interosseous space between the third, fourth, and fifth metacarpal bodies

Slight overlap of the distal radius and ulna

Carpals on lateral side of wrist

Trapezium and distal half of the scaphoid without superimposition

Open trapeziotrapezoid and scaphotrapezial joint space

Question 4

PA ulnar deviation

Answer 4

Perp to scaphoid

Angle 10 - 15 proximally or distally sometimes

hand turned laterally

Distal radius and ulna, carpals, and proximal half of metacarpals

Scaphoid with adjacent articulations open

Maximum ulnar deviation, as revealed by the angle formed between the longitudinal axis of the ulna and the longitudinal axis of the fifth metacarpal

Question 5

PA axial stecher

Answer 5

Perp to scaphoid

If IR not elevated (20 at finger end), 20 toward elbow

Distal radius and ulna, carpals, and proximal half of the metacarpals

Scaphoid with adjacent articulations open

Question 6

Tangential carpal canal (Gaynor-Hart )

Inferosuperior

Answer 6

1” distal to the base of the third metacarpal

25 - 30 towards bottom of palm

dorsiflex the wrist as much as is tolerable

Carpals in an arch arrangement

Pisiform in profile and free of superimposition

Hamulus of hamate

Question 7

Tangential carpal canal (Gaynor-Hart )

Superoinferior

Answer 7

Tangential to the carpal canal at the level of the midpoint of the wrist

25 - 30

dorsiflex the wrist as much as is tolerable

Carpals in an arch arrangement

Pisiform in profile and free of superimposition