RADT 150 LOWER EXTREMITIES COMP

AP 1st Toe

• 40” SID

• Digits to top of IR

• Maintain modesty

• Collimate to include part of adjacent toes and distal halves of metatarsals

• 50 – 65 kVp

• CR 10-15^o posteriorly to MTP joint

Oblique 1st Toe (medial rotation)

• 40” SID

• Digits to top of IR

• Maintain modesty

• Collimate to include part of adjacent toes and distal halves of metatarsals

• 50 – 60 kVp

• 30 - 45^o rotation

• CR perpendicular to MTP joint

Axial Calcaneus (plantodorsal)

• 40” SID

• Heel to bottom of IR

• Place ankle joint in middle of IR

• Dorsiflex foot

• Plantar surface perpendicular to IR

• Maintain modesty

• 65 – 75 kVp

• CR 40^o cephalad

• CR to base of 3rd MT to emerge posterior to malleoli

Lateral Calcaneus

• 40” SID

• Bend and abduct leg laterally

• Maintain modesty

• Dorsiflex foot

• Plantar surface at bottom of IR

• Planter surface perpendicular with IR

• Collimate to include distal tib/fib (ankle joint) and other tarsals

• 60 – 75 kVp

• CR 1 inch (2.5cm) inferior to medial malleolus

AP Foot

• 40” SID

• Digits to top of IR

• Maintain modesty

• 55 – 65 kVp

• CR 10^o angled posteriorly

• CR to base of 3rd MT

Lateral Foot (mediolateral)

• 40” SID

• Bend and abduct leg laterally

• Maintain modesty

• Dorsiflex foot

• Plantar surface at bottom of IR

• Planter surface perpendicular with IR

• Collimate to include distal tib/fib (ankle joint)

• 60 – 70 kV

• True Lateral

• CR to mid cuneiform (base of 3rd MT)

Mortise Ankle

• 40” SID

• Maintain modesty

• Plantar surface at bottom of IR

• Do not dorsiflex. Foot remains in natural plantar flexion

• Intermalleolar line parallel to IR: 15 to 20^o medial rotation (5th digit in line with calcaneus)

• CR midway between malleoli

• Collimate to include distal tib/fib and half of metatarsals

• • 60 – 75 kVp

AP Ankle

• 40” SID

• Maintain modesty

• Plantar surface at bottom of IR

• Dorsiflex foot (do not force)

• Planter surface perpendicular with IR

• Collimate to include distal tib/fib and half of metatarsals

• 60 – 75 kVp

• True AP

• CR midway between malleoli

Oblique Ankle

• 40” SID

• Maintain modesty

• Plantar surface at bottom of IR

• Rotate leg and foot medially 45 degrees

• Dorsiflex 80 to 85^o from IR (15 to 20 degrees from vertical

• Collimate to include distal tib/fib and half of metatarsals

• CR midway between

• malleoli

• 60 – 75 kVp

Lateral Ankle

• 40” SID

• Maintain modesty

• Plantar surface at bottom of IR

• Bend and abduct leg laterally

• Dorsiflex to 90^o when possible

• Collimate to include distal tib/fib and metatarsals

• CR medial malleoli

• 60 – 75 kVp

AP Tib/Fib

Lateral Tib/Fib

AP Knee

Oblique Knee

Tunnel View (Knee)

Sunrise View (bilateral) (patella)

AP Distal Femur

Lateral Distal Femur

Unilateral “Frog” Hip

Axiolateral Hip

AP Pelvis

Axial SI joint

Oblique SI Joint