Lower Extremity CR

Question 1

CR for AP Toes?

Answer 1

perp thru third MTP joint

Question 2

CR for AP axial toes?

Answer 2

15 degrees posterior thru 3rd MTP joint

Question 3

CR for AP Oblique toes (medial)?

Answer 3

perp, entering 3rd MTP joint

Question 4

CR for Lateral Toes?

Answer 4

perp to IR plane, entering IP joint of great toe or prox IP of lesser toes

Question 5

CR for AP Foot?

Answer 5

perp to IR, entering base of 3rd metatarsal

Question 6

CR for AP Axial foot?

Answer 6

10 degrees toward heel entering base of 3rd metatarsal

Question 7

CR for AP Oblique foot, medial?

Answer 7

perp to base of 3rd metatarsal

Question 8

CR for Lateral foot, mediolateral?

Answer 8

perp to base of 3rd metatarsal

Question 9

CR for Calcaneus, Axial, Plantodorsal?

Answer 9

directed to IR midpoint at cephalic angle 40 to long axis of foot, entering base of 3rd metatarsal

Question 10

CR for Lateral Calcaneus (mediolateral?)

Answer 10

perp to calcaneus, 1” distal to medial malleolus

Question 11

CR for AP ankle?

Answer 11

perp thru ankle joint at a point midway between malleoli

Question 12

CR for Lateral ankle, mediolateral?

Answer 12

perp to ankle joint, entering medial malleolus

Question 13

CR for AP Oblique Ankle, medial? 45

Answer 13

perp to ankle joint, midway between malleoli

Question 14

CR for AP Oblique Mortise joint? 15-20 medial

Answer 14

perep, entering ankle joint, entering midway between malleoli

Question 15

CR for AP Tib/Fib

Answer 15

perp to center of leg

Question 16

CR for Lat Tib/Fib

Answer 16

perp to midpoint of leg

Question 17

CR for AP knee

Answer 17

@ point .5” inferior to patellar apex, (pelvis height 24 cm, 3-5 degrees cephalad

Question 18

CR for Lat Knee

Answer 18

directed to knee joint 1” distal to medial epicondyle, 5-7 degrees cephalad