RAD 118 Elbow and Humerus
What is CR angle/direction for the AP projection of the elbow, proximal forcarm, in partial flexion
0 degrees
What evaluation criteria indicates the humerus was properly positioned for the AP projection?
greater tubercle seen in profile
What is CR angle and direction for the axial lateral projection of the elbow (Coyle method)?
45 degrees toward the shoulder
What is CR angle/dinection required for the Axiolateral peojection (Coyle method) of the elbow
45 degrees toward the shoulder
What is the degree of fiexion required for the lateral projection of the elbow?
90 degree
The elbow is flexed for the lateratprojection.
90 degrees
Referring to the image above, positioning for what projection is demonstrated?
AP distal humerus acute flexion
Referring to the image sbove, positioning for what projection is demonstrated
AP distal humerus partial flexion
Which of the following will best demonstrate the greater tubercle in profile?
AP humerus
Which of the following places the coronoid process of the ulna in profile?
AP oblique elbow projection, medial rotation
This projection of the elbow will demonstrate the coronoid process in profile
AP oblique medial rotation
which of the following would best demonstrate the radial head and neck free from superimposition
AP oblique projection lateral rotation
Which of the following projections of the elbow will best demonstrate the coronoid process in profile
AP oblique, medial rotatin
In which oblique of the elbow is the hand peonated?
AP oblique, medial rotation
This projection of the elbow will demonstrate the radial head neck and tuberosity free from superimposition.
AP oblque lateral rotation
This projection of the humerus will demonstrate the greater tubercle in profle
AP projection
Referring to the image above, positioning for what projection is demonstrated?
PA proximal forearm, acute flexio
What anatomic landmak is the IR centered for the transthoracic latenal projection (lawrence method) the proximal humerus
Surgical neck of humerus
Referring to the image above, what projection is demonstrated?
Transthoracic lateral projection of the shoulder and proximal humerus
For the AP projection of the eibow, the humeral epicondyles are placed to the plane of the IR
parallel
How are the humeral epicondyles positioned in relation to the plane of the IR for the AP projection of elbow?
parallel
Why is the hand supinated for the AP projection of the elbow?
to prevent crossing of the radius/ulna
The coronoid process is best seen in profile in the lateral projection of the elbow
false
Approximately how far above the hamseral head should the upper margin of the IR be placed for projection of humerus?
1 1/2"
In the properly positioned AP oblique of the elbow with lateral rotation, what two digits should touch
1 and 2
Which of the following are positioned to be in be same plane for the lateral projection of the elbow
1. Wrist joint 2. elbow joist 3. shoulder joint
In the lateral projection, four position series for the radial head, which position of the hand places the tuberosity to face posteriorly?
1. hand pronated 2. hand rotated medially
Which projections would best demonstrate the distal humerus in the lateral projection for a patient with fracture?
1. lateral recumbent, distal humerus 2. dorsal recumbent, distal humerus (cross-table lateral)
Which of the following must be clearly demonstrated on the AP projection of the humerus?
1. shoulder joint 2. elbow joint
If the patient cannot raise their unaffected arm for the transthoracic lateral projection (Lawrence meth the proximal humerus, the CR may be angled:
10-15 cephalic
How much is the elbow joint rotated from the plane of the IR for the AP oblique projections?
45 degree
The elbow is to be rotated from the plane of the IR for the AP oblique projections.
45 degrees
Referring to the image above, identify the name of this projection and the anatomy of interest from the choices provided.
Axiolaterai elbow (Coyle method) for radial head and capitulum
Which of dhe following wold be used to image the radial head for a trauma patient?
Axiolateral projection (Coyle method)
Which of the following structures of the distal humerus does the radial head articulate with
Capitulum
Which of the following projections best deminstrates the Olecranon process in profie?
Lateral
Where is the capitulum located?
Lateral side of distal humerus
how is the hand positioned for the lateral projection of the elbow?
Lateral with thumb up
Referring to the image above, what structure is labeled as letter K?
Medial epicondyle
What depression is located on the posterior apect of the distal humerus
Olecranon fossa
The olecranon fossa is located on:
distal posterior humerus
Referring to the image above, what anatomy does the white line indicate?
left radial tuberosity
Why are humerus images often done with the patient in the upright or seated upright position?
less painful for patient
Where is the CR directed for the AP projection of the humerus?
mid humerus
Which of the following is necessary when positioning for a true lateral position of the elbow?
necessary 1. hand in lateral position 2. elbow flexed 90 degrees 3. humeral epicondyles superimposed
If the posterior fat pad of the elbow is visible on an image, what is indicated?
pathology or injury
For the lateral projection of the elbow the humeral epicondyles are placed to the plane of the IR
perpendicuiar
Referring to the above image, how are the humeral epicondyles positioned in relation to the plane of the IR
perpendicular
When performing the PA projection of the proximal forearm with the elbow in acute flexion, the CR is directed:
perpendicular to the forearm
How is the hand positioned for the axiolsteral projection (Coyle method) of the elbow?
pronated
What does the image above portray?
proximal ulna
As positioned in the image above, what structures of the elbow will be best demonstrated on the final image?
radial head and capitulum
Referring to the diagram above, what anatomy will be best demonstrated on the resulting image?
radial head free from superimposition
Which is dhe lateral bone of he forearm
radius
Where is the anatomical neck of the humerus located in relation to the surgical neck?
superior
What site is a common place for humerus fractures?
surgical neck
Which portion of the distal humerus does the trochlear notch of the ulna articulate with?
trochlea