Question

For the PA axial projection of the knee, Camp Coventry method, which CR angulation is utilized?

1) 25-30 degrees caudal
2) 15-20 degrees cephalic
3) 40-50 degrees caudal
4) 25-30 degrees cephalic

Answer 1

The PA axial projection of the knee with the Camp Coventry method uses a 40-50 degrees caudal CR angulation. It matches the knee's flexion for proper imaging of the intercondylar fossa.

Step-by-step explanation:

For the PA axial projection of the knee using the Camp Coventry method, the correct central ray (CR) angulation utilized is 40-50 degrees caudal. This method typically requires the patient to be prone with the knee flexed at about 40-50 degrees, and the X-ray tube angled to match the degree of flexion so as to be perpendicular to the lower leg. This angulation allows for clear visualization of the intercondylar fossa region of the femur on the radiographic image.