Elbow TRAUMA

Question 1

Where is the CR for a partial flexion: AP proximal forearm?

Answer 1

Perpendicular to the elbow joint and long axis of the forearm

Question 2

What are the structures seen for a Partial flexion: AP proximal forearm?

Answer 2

• Proximal radius and ulna without rotation or distortion
• Radial head, neck, and tuberosity slightly superimposed over the ulna
• partially open elbow joint
• Foreshortened distal humerus

Question 3

Where is the CR for a partial flexion: distal humerus?

Answer 3

Perpendicular to the condyloid area of the humerus

Question 4

What structures are seen for a partial flexion: AP distal humerus?

Answer 4

• Distal humerus without rotation or distortion
• proximal radius superimposed over ulna
• closed elbow joint
• Foreshortened proximal forearm

Question 5

Where should the IR be centered for an Acute flexion: PA proximal forearm?

Answer 5

The epicondylar area of the humerus

Question 6

Where is the CR for an Acute flexion: PA proximal forearm?

Answer 6

Perpendicular to the flexed forearm, entering 2” distal to the olecranon process

Question 7

Doe the CR need to be angle for a Acute flexion: PA proximal forearm?

Answer 7

Yes

Question 8

What are the structures seen for an Acute flexion: PA proximal forearm?

Answer 8

• Proximal radius and ulna without rotation
• Forearm and humerus superimposed

Question 9

Where should the center of the IR be for an Acute flexion: AP distal humerus?

Answer 9

Proximal to the epicondylar area of the humerus

Question 10

Where is the CR for an Acute flexion: AP distal humerus?

Answer 10

Perpendicular to the humerus, entering 2” superior to the olecranon process

Question 11

Does the CR need to be angled for an Acute flexion: AP distal humerus?

Answer 11

No

Question 12

What are the structures seen for a Acute flexion: AP distal humerus?

Answer 12

• Distal humerus and olecranon process are seen
• No rotation
• Forearm and humerus are superimposed

Question 13

Where is the CR for an Axiolateral projection of the radial head (Coyle method)?

Answer 13

Directed toward the shoulder at a 45 degree angle to the radial head and enters the elbow joints

Question 14

What degree is the elbow flexed for a Axiolateral projection of the radial head (Coyle method)?

Answer 14

90

Question 15

What are the structures seen for a Axiolateral projection of the radial head (Coyle method)?

Answer 15

• Open joint space between radial head and capitulum
• Radial head, neck, and tuberosity should be free of superimposition
• Humeral epicondyles appear distorted

Question 16

Where is the CR for a Axiolateral projection of the coronoid process (Coyle method)?

Answer 16

DIrected away from the shoulder at a 45 degrees angle to the coronoid process and enters the elbow joint

Question 17

What degree is the elbow flexed for a Axiolateral projection of the coronoid process (Coyle method)?

Answer 17

80

Question 18

What are the structures seen for a Axiolateral projection of the coronoid process (Coyle method)?

Answer 18

• The distal portion of the coronoid process appears elongated
• Open joint space between coronoid process and trochlea
• Radial head and neck superimposed by ulna