2 - Aldridge - Radiography of Upper Limb

Question 1

Answer 1

Boxer’s Fracture

Fracture of 5th Metacarpal

Question 2

Answer 2

Scaphoid Fracture

• Usually at waist of bone
• Pain in anatomical snuffbox
• Risk of avascular necrosis
• CAST event if initial x-rays appear negative!

Question 3

Answer 3

Scapholunate Dissociation

Terry Thomas Sign

Increased concentration of load, leads to arthritis

Pain/Swelling over dorsal scapholunate region, increased pain w/dorsiflexion

Question 4

Answer 4

Monteggia Fracture-Dislocation

• Fracture of Ulna and anterior dislocation of radial head at elbow
• FOOSH
• Radial head displacement into cubital fossa w/elbow pain

Question 5

Answer 5

Galeazzi Fracture-Dislocation

• Fracture of distal 1/3 of radius with dislocation of distal radioulnar joint

- Intact Ulna

• FOOSH
• Swelling at distal forearm and/or wrist with pain upon movement

Question 6

Answer 6

Radial Head fracture

FOOSH, most common in adults

May not be visible on x-ray

Look for posterior Fat Pad Sign (posterior)

Look for Sail Fat Pad Sign (anterior)

Question 7

Answer 7

AC Joint Separation (separated shoulder)

• Step Off Deformity (Trapezius pulls up)
• Torn Acromioclavicular / Coracoclavicular Ligaments

Question 8

Answer 8

Anterior Shoulder Dislocation

Anterior-Inferior final position

Application of indirect force to the arm, combination of abduction, extension, and external rotation