AP Projection
- The patient is seated or placed supine on the table;
- Flex the knee;
- sole of the foot in IP;
- The contralateral limb in extension.
Central ray
perpendicular through the third metatarsophalangeal joint.
Evaluation
criteria:
- No rotation of phalanges;
- Toes separated from each other;
- Distal ends of the metatarsals;
- Appropriate exposure values (visualization of the all bony trabeculation and soft tissue).
AP Oblique Projection
- The patient is seated or placed supine on the table;
- Flex the knee and rest the sole of the foot on the IP;
- Medial rotation of the leg and the foot 45º.
Central ray
perpendicular through the third metatarsophalangeal joint.
Evaluation
Criteria:
- Visualization of all phalanges;
- Oblique toes and separate from each other;
- Open interphalangeal and second through fifth metatarsophalangeal joint space;
- The first metatarsophalangeal joint isn’t always open;
- Appropriate exposure values (visualization of the all bony trabeculation and soft tissue).
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