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Ankle. Views. Ap Lateral Internal and external Obliques. Things to know. Page 224 in book Cassette: 10 x 12 crosswise divided in half Measures 8 Shield Marker Hold still. Part Position for AP. Place patient supine on table Do not flex foot allow it to be in a natural position

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  • Ap
  • Lateral
  • Internal and external Obliques
things to know
Things to know
  • Page 224 in book
  • Cassette: 10 x 12 crosswise divided in half
  • Measures 8
  • Shield
  • Marker
  • Hold still
part position for ap
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.
central ray
Central Ray
  • 40 SID
  • Perpendicular to a point mid-way between malleoli
  • Collimate to lateral skin borders and included distal tib/fib and proximal half of metatarsals.
seen on radiograph
Seen on Radiograph
  • The Distal tib/fib
  • The lateral and medial malleoli
  • The talus
  • Proximal half of metatarsals
  • The other half of the 10x 12 cassette
  • Shield
  • Marker
part position
Part Position
  • Rotate patient on side of affect foot
  • Place unaffected leg behind affected leg
  • Dorsiflex foot for a true 90 degree angle
central ray11
Central ray
  • 40 Sid
  • Perpendicular to the medial malleolus
seen on radiograph12
Seen on Radiograph
  • Distal third of tib/fib superimposed
  • The talus
  • The calcaneus
  • The navicular and cuboid
  • Tibotalar joint open

10 x12 cassette divided in half



part position for oblique
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
central ray17
Central ray
  • 40 SID
  • Perpendicular to mid-way between malleoli
seen on internal oblique
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.
seen on external oblique
Seen on external oblique
  • The Calcaneal sulcus
  • The superior portion of the calcaneus
  • The distal tib/fib superimposed anterior
the views
the Views
  • AP
  • Lateral
things to know22
Things to know
  • Cassette size: 14 X 17 turned diagonally
  • one cassette per view
  • Shield
  • Marker
  • Measures 10
part position for ap23
Part position for AP
  • Patient Supine on table
  • Place shield over lap
  • leg fully extended
  • place leg in true AP position for knee and ankle
  • Femoral condyles parallel to IR
  • foot flexed to 90 degree (TOES up)
  • include both joints (knee & ankle) IR.
central ray25
Central Ray
  • 40 SID
  • perpendicular to mid-leg
  • Collimate to skin borders on lateral and medial sides.
  • Leave collimation open from top to bottom
  • ** can go up to 44 or 48 SID to include more of part**
seen on radiograph26
Seen on Radiograph
  • The entire tibia and fibula
  • both ankle and knee joint
  • the condyles of tibia and femur in profile
  • the intercondylar eminence centered in the intercondylar fossa
  • some imposition of distal and proximal tib/fib
lateral tib fib
Lateral Tib/Fib
  • 14 X 17 diagonally
  • shield
  • Marker
part position for lateral
Part position for lateral
  • Patient on side with injured side down
  • flex knee about 45 degree to ensure true lateral
  • plane of patella should be perpendicular to IR
  • opposite leg behind injured one
  • both joints included on IR
central ray30
Central Ray
  • perpendicular to mid-leg
  • collimation to skin borders on sides
  • open fully top to bottom
  • ** can go up to 44 or 48**
seen on radiograph31
Seen on Radiograph
  • Entire tib/fib
  • both joints
  • tibial tuberosity in profile
  • fibula head imposed by tibia
  • distal fibula imposed on posterior portion of tibia
  • femoral condyles superimposed.
important note
!!!Important Note!!!!
  • If you can not fit entire leg on on film...
  • You must include the joint nearest the injury on the film and take a separate picture of the other joint.