A patient comes to radiology with a history of chondromalacia of the patella.Her physician orders a projection of the patellofemoral joint space.Due to advanced emphysema,the patient cannot lie recumbent for this projection.Which of the following projections would be best for this patient?

Question

Quizplus · Accepted Answer

The superoinferior sitting tangential method would be the best choice for this patient as they are unable to lie recumbent. This projection is performed with the patient sitting on a stool with their affected knee flexed and resting on the stool. The X-ray tube is positioned superoinferiorly and the central ray is directed through the patellofemoral joint space. This projection allows for visualization of the patellofemoral joint space without the patient needing to lie recumbent.

A Patient Comes to Radiology with a History of Chondromalacia