Elbow MA 209

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In the AP elbow, proximal forearm projection, the:

forearm rests on the IR

Which of the following is shown "in profile" on a lateral projection of the elbow?

olecranon process

For the AP projection of the elbow, the humeral epicondyles are:

parallel to the IR

What is the central ray for the AP elbow?

perpendicular midway between the humeral epicondyles

What is the central ray for the lateral elbow?

perpendicular to the lateral condyle

Which surface of the elbow is in contact with the IR when taking an AP projection of the elbow?

posterior surface

What position will the hand be in for the AP oblique with medial rotation?

pronated

The capitulum of the humerus articulates with the:

radial head

What specific anatomy is demonstrated without superimposition in the AP oblique projection in 45 degree lateral rotation?

radial head and capitulum

The head of the radius fits into a depression on the lateral aspect of the coronoid process of the ulna. This depression is called the:

radial notch

What position is the hand placed in for the AP projection of the elbow?

supinated

How many degrees should the elbow be angles for an AP oblique projection with medial rotation?

45 degrees

For the lateral projection of the forearm, the elbow should be flexed:

90 degrees

Which projection and position demonstrates the coronoid process of the ulna without superimposition?

AP oblique projection; 45 degrees medial rotation position

Which projection should be performed if the primary area of interest is the radial head?

AP oblique with lateral rotation

Which projection should be performed if the primary area of interest is the coronoid process?

AP oblique with medial rotation

Which of the following projections of the elbow will demonstrate the olecranon process within the olecranon fossa?

AP oblique, medial rotation

True or False: The alternate positions for the AP elbow require three separate positions.

False

True or False: The trochlea articulates with the tochlear notch of the radius.

False

A fracture of the ulna with dislocation of the radial head is called a:

Monteggia fracture

True or False: In the correctly positioned lateral elbow radiograph, the radial tuborsity faces anteriorly.

True

True or False: The humeral condyles are parallel to the IR for the AP projection of the elbow.

True

True or false: The radial head articulates with the capitulum of the humerus.

True

Which of the following is demonstrated free of superimposition on an Ap oblique projection of the elbow in lateral rotation?

capitulum

Which of the following would be projected free of superimposition for an Ap oblique projection of the elbow with medial rotation?

coronoid process

Which of the following should be in the same plane for a lateral projection of the elbow?

elbow joint, wrist joint, and shoulder joint

Soft tissue radiographs of the elbow in the lateral position are often ordered to demonstrate:

fat pads


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