Knee - Oblique (Lateral)

Adult

Other related pages of interest

Name of projection	Knee - Oblique - Lateral (External Rotation)
Area Covered	Distal femur, proximal tibia & fibula, patella, and knee joint.
Pathology shown	Fractures, lesions, bony changes secondary to degenerative joint disease.
Radiographic Anatomy	Knee Radiographic Anatomy
IR Size & Orientation	18 x 24cm Portrait
Film / Screen Combination	Detail (CR and DR as recommended by manufacturer)
Bucky / Grid	No
Filter	No
Exposure	62 kVp 8 mAs
FFD / SID	100cm
Central Ray	Directed to the midpoint of the knee 1.2cm distal to apex of patella Perpendicular to IR
Collimation	Collimate on the sides to skin margins Collimate to IR borders to include maximum femur and tibia / fibula
Markers	Distal and Lateral Marker orientation AP
Shielding	Gonadal (check your department's policy guidelines)
Respiration	Not applicable
Positioning	Patient in a semi-supine position on the X-ray table Cushion for head Entire body and leg rotated partially away from side of interest Place support under elevated hip Align and centre leg and knee to CR and to midline of IR Rotate entire leg externally 45° (Interepicondylar line should be 45° to plane of IR) If needed stabilise foot and ankle in this position with sandbags CR directed to the midpoint of the knee, 1.2cm distal to apex of patella, perpendicular to IR
Critique PACEMAN	Positioning Area Covered Collimation Exposure
Special Notes

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