Fracture, dislocation of patella
Patella, Knee joint
The patient may lie in the semi recumbent position, holding cassette superior the patella and in the landscape orientation.
Patient’s feet are closed to tube side of the table.
The knee should bent close to 30°
Assist the patient to maintain this position by placing a pillow behind the patient.
Size: 14’’x17’’ Orientation: landscape
The central ray will be angled 30°from horizontal, shooting inferior-superior towards the patella. This will require the tube to lie below the level of the examination table; hence the patient should be as possible
The apex of the patella
Collimate laterally to the knee skin margins, superiorly to the medial skin margin, inferiorly to the femoropatellar joint space.