(Elbow) AP Oblique projection (medial rotation)

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Evaluation criteria

*evidence of proper collimation *Elbow joint open and centered to the central ray *45 degree medial rotation of elbow *coronoid process in profile *Elongated medial humeral epicondyle *Ulna superimposed by the radial head and neck *Trochlea *Olecranon process within the olecranon fossa *Soft tissue and bony trabecular detail

Central ray

*perpendicular to the elbow joint

Position of part

Extend the limb in position for an AP projection, and center the midpoint of the IR to the elbow joint *Medially(internally) rotate or pronate the hand, and adjust the elbow to place its anterior surface at the angle of 45 degrees. This degree of obliquity usually clears the coronoid process of the radial head *shield gonads

structures Shown

The image shows an oblique projection of the elbow with the coronoid process projected free of superimposition

Position of patient

seat the patient at the end of radiographic table with the arm extended and in contact with the table


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