Intercondylar fossa and tangential patella

Patient and part

The intercondylar fossa (tunnel) views show the notch between the femoral condyles, the posterior condyles, the intercondylar eminence and the tibial plateaus. They are used for loose bodies, osteochondritis dissecans and joint space narrowing. For the PA axial Camp-Coventry method, the patient is prone with the knee flexed 40 to 50 degrees, the lower leg on a support. For the Holmblad method, the patient kneels on the table with the affected knee over the IR and leans forward so the femur is 60 to 70 degrees from the table (20 to 30 degrees from vertical); a standing version rests the knee on a stool. For the AP axial Béclère method, the patient is supine with the knee flexed 40 to 45 degrees over a curved IR or support. The Rosenberg view is a PA weight-bearing view of both knees flexed 45 degrees, which shows cartilage loss that a straight-leg AP misses.