- Discussion:
- tunnel radiograph of knee provides an angled PA projection of knee;
- patient is prone with the knee flexed at 40 deg;
- central beam directed caudally toward the knee joint at a 40 deg
angle from the vertical;
- clinical relevance:
- displays profile of intercondylar notch;
- profiles of posteriorsuperior articular surfaces of medial & lateral condyles;
- profiles the notch on the lateral surface of lateral femoral condyle from
which popliteus originates
- clinical correlation:
Osteochondritis Dissecans;
