Tibia/Fibula - AP

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Radiographic Positioning

Other related pages of interest

Name of projection Tibia / Fibula - AP
Area Covered Entire tibia / fibula, knee joint proximally and ankle joint distally
Pathology shownFractures, dislocation, foreign body, bony lesions, osteomyelitis
Radiographic AnatomyTibia / Fibula Radiographic Anatomy
IR Size & Orientation 35 x 43 cm
Film / Screen Combination Regular
(CR and DR as recommended by manufacturer)
Bucky / Grid No
Exposure 50 kVp
5 mAs
FFD / SID 115cm
Central Ray Midpoint of tibia / fibula
Perpendicular to IR
Collimation Collimate on sides to the soft tissue borders of the tibia / fibula
Lower margin to include ankle joint, Upper margin to include knee joint
Markers Distal and Lateral
Marker orientation AP
Shielding Gonadal (check your department's policy guidelines)
Respiration Not applicable
  • Patient's leg fully extended on the table
  • Place IR under tibia / fibula of the affected leg diagonally
  • Place the lower leg in the AP position
  • The foot is dorsiflexed so that the plantar surface is perpendicular to the table
  • Centre to the midpoint of tibia / fibula, perpendicular to IR

Area Covered
Special Notes