foot

Question 1

• supine
• flex knee and rest sole
• center IR base of 3rd metatarsal
• CR perpendicular to the base of
  the 3rd metatarsal or 10 degrees towards the heel to the base of the third metatarsal
• anterior to the talus, metatarsals, and phalanges
• localizing foreign bodies, determining the location of fragments in fractures of the metatarsals and anterior tarsals, and performing general surveys of the bones of the foot

Answer 1

AP or AP Axial Projection

Question 2

• supine
• rotate the patient’s leg until the plantar surface of the foot forms an angle of 30 degrees to the plane of the IR.
• CR perpendicular to the base of the 3rd metatarsal.
• interspaces between the following:
• cuboid and the calcaneus;
• cuboid and the 4th and 5th
  metatarsals;
• cuboid and the lateral cuneiform
• the talus and the navicular bone.
• sinus tarsi is also well demonstrated

Answer 2

AP OBLIQUE PROJECTION Medial rotation

Question 3

• rotate the leg until the plantar surface of the foot forms an angle of 30 degree to the IR.
• CR perpendicular to the base of the 3rd metatarsal
• interspaces between the 1st and 2nd metatarsals and between the medial and intermediate cuneiforms

Answer 3

AP OBLIQUE PROJECTION Lateral rotation

Question 4

• prone
• demonstrate the interspace between the 1st and 2nd metatarsals, rotate the heel medially approximately 30 degrees
• CR perpendicular to the base of 3rd metatarsal
• 1st and 2nd metatarsal bases free of superimposition
• Medial cuneiform projected without superimposition
• Navicular bone seen in profile.

Answer 4

PA OBLIQUE PROJECTIONS GRASHEY METHODS Medial rotation

Question 5

• prone
• CR perpendicular to the base of 3rd metatarsal
• heel laterally rotated 20 degrees.
• 3rd through 5th metatarsal bases
  free of superimposition
• Tuberosity of the 5th metatarsal
  and Cuboid

Answer 5

PA OBLIQUE PROJECTIONS GRASHEY METHODS Lateral rotation

Question 6

• patient lie on the radiographic table and turn toward the affected side
• center the IR to the midarea of the foot.
• dorsiflex the foot to form a 90 degree angle with the lower leg.
• CR perpendicular to the base of the 3rd metatarsal
• entire foot in profile, the ankle joint, and the distal ends of the tibia and fibula

Answer 6

Mediolateral Lateral Projection

Question 7

• patient’s body will be in an LPO or RPO position and the medial side of the foot is in contact with the IR.
• Adjust the foot so that the plantar surface is perpendicular to the I R.
• CR perpendicular to the base of the 3rd Metatarsal
• true lateromedial projection of the foot, ankle joint, and distal ends of the tibia and fibula

Answer 7

Lateromedial Lateral Projection

Question 8

• Have the patient stand in a natural position, one foot on each side of the IR with the weight of the body equally distributed on the feet.
• CR perpendicular to a point just above the base of the 3rd metatarsal
• demonstrates the structural status of the longitudinal arch

Answer 8

WEIGHT-BEARING METHOD

Question 9

• patient in the standing upright position.
• patient place the opposite foot one step backward for the exposure of the forefoot and one step forward for the exposure of the hind foot or calcaneus.
• CR directed to the base of the 3rd metatarsal with a 15 degrees posterior angulation.
• Directed to the posterior surface of the ankle with a 25 degrees anterior angulation
• full outline of the foot is projected free of the leg

Answer 9

AP AXIAL PROJECTION WEIGHT-BEARING COMPOSITE METHOD