Toes, Foot, and Calcaneus

What is the field size for an AP Axial Foot?

10 x 12 LW or 11 x 14 LW (collimate on 4 sides)

How should the patient be positioned for an AP Axial Foot?

Supine or seated, knee flexed, plantar surface flat on IR

How should the foot (part) be positioned for an AP Axial Foot?

Center IR to the base of the 3rd metatarsal

What is the central ray for an AP Axial Foot?

10° cephalic angle to the base of the 3rd metatarsal

What anatomy is demonstrated in an AP Axial Foot?

Open MTP joints, phalanges, metatarsals, cuneiforms, cuboid, normal overlap of 2nd–3rd cuneiforms

What is the field size for an AP Oblique Foot?

10 x 12 or 11 x 14 LW (collimate on 4 sides)

How should the patient be positioned for an AP Oblique Foot?

Supine or seated, knee flexed, plantar surface on IR

How should the foot (part) be positioned for an AP Oblique Foot?

Medially rotate leg & foot until plantar surface makes about a 30° angle to IR

What is the central ray for an AP Oblique Foot?

Perpendicular to the base of the 3rd metatarsal

What anatomy is demonstrated in an AP Oblique Foot?

Sinus tarsi, cuboid, 3rd cuneiform, and bases of 3rd–5th metatarsals without superimposition

What is the field size for a Lateral Foot?

10 x 12 or 11 x 14 LW (long axis to foot)

How should the patient be positioned for a Lateral Foot?

Lying on affected side, knee flexed, support given to keep foot true lateral

How should the foot (part) be positioned for a Lateral Foot?

Dorsiflex foot with plantar surface perpendicular to IR

What is the central ray for a Lateral Foot?

Perpendicular to the base of the 3rd metatarsal

What anatomy is demonstrated in a Lateral Foot?

Entire foot, ankle joint, distal fibula superimposed over posterior tibia

What is the field size for AP Toes?

8 x 10 CW IR (collimate on 4 sides)

How should the patient be positioned for AP Toes?

Supine or seated, knee flexed, plantar surface flat on IR

How should the toes (part) be positioned for AP Toes?

Center toes to IR, ensure plantar surface is flat

What is the central ray for AP Toes?

15° cephalic angle to the MTP joint of the toe of interest

What anatomy is demonstrated in AP Toes?

All phalanges and distal metatarsals with open joint spaces

What is the field size for AP Oblique Toes?

8 x 10 CW IR (collimate on 4 sides)

How should the patient be positioned for AP Oblique Toes?

Supine or seated, knee flexed, plantar surface on IR

How should the toes (part) be positioned for AP Oblique Toes?

Medially rotate foot 30° so toes angle upward from IR

What is the central ray for AP Oblique Toes?

Perpendicular to the MTP joint of the toe of interest

What anatomy is demonstrated in AP Oblique Toes?

All phalanges and distal metatarsals with medial rotation shown

What is the field size for Lateral Toes?

8 x 10 CW IR (collimate on 4 sides)

How should the patient be positioned for Lateral Toes (1st–2nd)?

Lie on unaffected side

How should the patient be positioned for Lateral Toes (3rd–5th)?

Lie on affected side

How should the toe (part) be positioned for Lateral Toes?

Toe of interest placed in true lateral; use gauze/tape to separate toes

What is the central ray for Lateral Toes?

MTP joint for 1st toe, PIP joint for 2nd–5th toes

What anatomy is demonstrated in Lateral Toes?

Toe of interest in profile with open joint spaces

What is the field size for Axial Calcaneus?

8 x 10 CW IR (collimate on 4 sides)

How should the patient be positioned for Axial Calcaneus?

Seated with leg extended; use gauze/tourniquet to pull foot into dorsiflexion

How should the foot (part) be positioned for Axial Calcaneus?

Dorsiflex foot so plantar surface is perpendicular to IR

What is the central ray for Axial Calcaneus?

40° cephalic entering at base of 3rd metatarsal

What anatomy is demonstrated in Axial Calcaneus?

Entire calcaneus, subtalar joint, sustentaculum tali, trochlear process

What is the field size for a Lateral Calcaneus?

8 x 10 CW IR (collimate on 4 sides)

How should the patient be positioned for a Lateral Calcaneus?

Lying on affected side with knee flexed, support under leg for true lateral

How should the foot (part) be positioned for a Lateral Calcaneus?

Dorsiflex foot; plantar surface perpendicular to IR; center calcaneus to IR

What is the central ray for a Lateral Calcaneus?

Perpendicular to midpoint of calcaneus (1" distal to medial malleolus)

What anatomy is demonstrated in a Lateral Calcaneus?

Calcaneus in profile, sinus tarsi, talus, distal tibia/fibula, cuboid, navicular