The elbow internal oblique view is a specialized projection, utilized to demonstrate both the coronoid process in profile and the olecranon process sitting within the olecranon fossa of the humerus. The affected limb is pronated.
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Indications
The medial oblique view is not a standard projection of the elbow, however helpful when occult fractures of the coronoid process are suspected.
Patient position
- the patient is seated alongside the table
- fully extended arm and forearm, in a pronated position
- ensure the anterior portion of the elbow is roughly 45 degrees from the IR
Technical factors
- anteroposterior medial oblique projection
-
centering point
- mid elbow joint
-
collimation
- superior to the distal third of the humerus
- inferior to include one-third of the proximal radius and ulna
- lateral to include the skin margin
- medial to include medial skin margin
-
orientation
- portrait
-
detector size
- 18 cm x 24 cm
-
exposure
- 50-60 kVp
- 2-5 mAs
-
SID
- 100 cm
-
grid
- no
Image technical evaluation
- the coronoid process should be seen in profile
- a clear visualization of the olecranon sitting in the olecranon fossa
- the radial head and proximal ulna are superimposed
Practical points
Keep in mind patient comfort when performing this examination.
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