Subtalar Joint - Lateromedial Oblique (Isherwood)

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Name of projection	Subtalar Joint - Lateromedial Oblique - Medial Rotation (Isherwood)
Area Covered	Distal tibia and fibula, entire talus and calcaneum, proximal tarsal bones
Pathology shown	Shows anterior talar articular surface
Radiographic Anatomy
IR Size & Orientation	18 x 24cm Landscape
Film / Screen Combination	Detail (CR and DR as recommended by manufacturer)
Bucky / Grid	No
Filter	No
Exposure	60 kVp 3.2 mAs
FFD / SID	100cm
Central Ray	CR perpendicular to a point 2cm distal and 2cm anterior to lateral malleolus
Collimation	Four sides of collimation collimate to ankle jont and calcaneum
Markers	Proximal and Anterior Marker orientation AP
Shielding	Gonadal (check your department's policy guidelines)
Respiration	Not applicable
Positioning	Patient semi supine and turned away from affected side Knee flexed and foot dorsiflexed to 90° Place IR under the ankle Medial border of foot resting on IR Place 45° degree sponge under elevated leg Adjust the leg so that its long axis is in the same plane as the central ray CR perpendicular to a point 2cm distal and 2cm anterior to lateral malleolus
Critique PACEMAN	Positioning Area Covered Collimation Exposure
Special Notes

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