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The Foot

The Foot. The Views. AP Oblique Lateral. Things to know. Cassette size: 10x12 lengthwise divided in half and 8 x 10 Shield Marker Hold still Measures: 6 70@2. Part Position for AP. Place patient supine on table with foot exposed. (No Shoe or sock)

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The Foot

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  1. The Foot

  2. The Views • AP • Oblique • Lateral

  3. Things to know • Cassette size: • 10x12 lengthwise divided in half and 8 x 10 • Shield • Marker • Hold still • Measures: 6 70@2

  4. Part Position for AP • Place patient supine on table with foot exposed. (No Shoe or sock) • Flex the knee to place foot flat on IR • Center foot to IR with long axis of foot with long axis of IR.

  5. Central Ray • Angled 10 degrees posterior toward heel • For every 5 Degrees angle drop SID by 1 in. • Center to Base of third metatarsal • SID 40 inches • Collimate to outer borders on all four sides

  6. Seen on Radiograph • Entire foot • All phalanges, metatarsals, navicular, cuneiforms and cuboid. • No rotation as seen by the bases of the first and second metatarsals separated. • 3-5 metatarsals are slightly overlapped

  7. Oblique • Use the other half of cassette • Shield • Hold still • Marker in light field

  8. Part position for Oblique • With foot flat against the IR. • Rotate foot medially 30- 40 degrees

  9. Center to Base of third metatarsalSID 40 inches

  10. Seen on Radiograph • Entire foot • From phalangles to Calcaneus • 3-5 metatarsals are free of imposition • Joint space around cuboid is open • The Sinus tarsi is seen.

  11. Lateral Foot • 8 X 10 or 10x12 for larger foot • Turn diagonally • Measures 8 • 66 @ 4 • Mark • Shield • Hold still

  12. Part position • Turn patient on side so the lateral portion of foot is in contact with IR • Flex knee of affect foot • Place opposite leg behind the injured leg. • Place the plantar surface of foot perpendicular to IR. • Do not over rotate.

  13. 40 SIDTo Medial cuneiform

  14. Seen on Radiograph • Entire foot • 1 inch of distal tib/fib • Metatarsals superimposed • Tibiotalar joint is open • Distal fibular is superimposed by distal tibia..

  15. Lets work on the Heel

  16. Things to knows • Cassette size:8 x 10 crosswise divided in half • Measures: 10 70@ 5 • Done on table top • 2 ViewsAxial and Lateral

  17. Position of Part for Axial • Patient seated on table with leg fully extended • Place the back of heel on IR • Dorsiflex foot until plantar surface is perpendicular with IR • Can use gauze or something to assist patient with position.

  18. Angle 40 Degrees celphald Base of third metatarsal SID 40 Inches

  19. Seen on Radiograph • Entire calcaneus • Open talocalcaneal joint.

  20. Lateral View • Other half of cassette • Measures 10

  21. Part position • Roll patient with affected side down • Center heel to IR • Plantar surface perpendicular to film • same as lateral foot

  22. SID 401 inch below the medial malleolous

  23. Seen on Radiograph • Calcaneus in profile • Open joint space of calcaneus and cuboid • Imposition of distal tib/fib

  24. Ankle

  25. Views • Ap • Lateral • Internal and external Obliques

  26. Things to know • Cassette: 10 x 12 crosswise divided in half • Measures 8 • 65 @ 6 • Shield • Marker • Hold still

  27. Part Position for AP • Place patient supine on table • Do not flex foot allow it to be in a natural position • Point toes up to ensure a true AP of lower leg and ankle.

  28. 40 SID Perpendicular to a point mid-way between malleoli

  29. Seen on Radiograph • The Distal tib/fib • The lateral and medial malleoli • The talus • Proximal half of metatarsals

  30. Lateral • The other half of the 10x 12 cassette • Shield • Marker • Hold still

  31. Part Position • Rotate patient on side of affect foot • Place unaffected leg behind affected leg • Dorsiflex foot for a true 90 degree angle

  32. 40 SID Perpendicular to the medial malleolus

  33. Seen on Radiograph • Distal third of tib/fib superimposed • The talus • The calcaneus • The navicular and cuboid • Tibotalar joint open

  34. Obliques 10 x12 cassette divided in half Shield Marker Hold still

  35. Part Position for oblique • Start like on an AP • Patient supine and heel against cassette toes up • Center ankle to center of Cassette • Rotate leg medially (internal) 45 degrees • Rotate leg laterally (external) 45 degrees

  36. 40 SID Perpendicular to mid-way between malleoli

  37. 40 SID Perpendicular to mid-way between malleoli

  38. Seen on internal oblique • Distal third of tib/fib • the malleoli • the talus and proximal half of metatarsals • tibiofibular joint open • the lateral malleoli and talus joint open • the medial malleoli and talus partially imposed.

  39. Seen on external oblique • The Calcaneal sulcus • The superior portion of the calcaneus • The distal tib/fib superimposed anterior

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