If the elbow is in a 90 degree flexion, the position will be

If the elbow is in a 90 degree flexion, the position will be

• A. Lateral
• B. Tangential
• C. Lateral-oblique
• D. PA

Answer: (A)

When the elbow is flexed to about 90 degrees, the standard projection is a lateral view. This position places the forearm in true side profile, allowing the radius and ulna to superimpose and the olecranon to be seen from the posterior aspect. That alignment is ideal for evaluating joint alignment, dislocations, and fractures around the elbow. Other projections serve different purposes: tangential views aim to angle the beam to the surface of a structure, not to capture the elbow in a true lateral profile; lateral-oblique rotates the arm to reveal alternative surfaces (like the radial head or coronoid process); and a PA (or AP) view is a front-facing view with the elbow extended and the forearm in a different orientation.

When the elbow is flexed to about 90 degrees, the standard projection is a lateral view. This position places the forearm in true side profile, allowing the radius and ulna to superimpose and the olecranon to be seen from the posterior aspect. That alignment is ideal for evaluating joint alignment, dislocations, and fractures around the elbow.

Other projections serve different purposes: tangential views aim to angle the beam to the surface of a structure, not to capture the elbow in a true lateral profile; lateral-oblique rotates the arm to reveal alternative surfaces (like the radial head or coronoid process); and a PA (or AP) view is a front-facing view with the elbow extended and the forearm in a different orientation.