Feet & Ankle

Question 1

number of bones in the foot

Answer 1

26

Question 2

number of phalanges in the foot

Answer 2

14

Question 3

number of tarsal bones

Answer 3

7

Question 4

name of heel bone

Answer 4

calcaneus

Question 5

bone on lateral side between calcaneus and 4th and 5th metatarsals

Answer 5

cuboid

Question 6

bone on medial side between calcaneus and the cuneiforms

Answer 6

navicular

Question 7

largest cuneiform

Answer 7

medial cuneiform

Question 8

smallest cuneiform

Answer 8

intermediate cuneiform

Question 9

talus articulates with the calcaneus at the ____ joint

Answer 9

subtalar joint

Question 10

largest tarsal bone

Answer 10

calcaneus

Question 11

bone found on the plantar surface of first MTP joint

Answer 11

sesamoid bones

Question 12

degree of angulation for axial AP toes

Answer 12

15 degrees, drop 2 inches SID

Question 13

why toes are done AP axial

Answer 13

open the joint spaces and reduce foreshortening

Question 14

CR for AP axial toes enters at the

Answer 14

3rd MTP joint

Question 15

AP Oblique toes medial rotation degrees

Answer 15

30-45 degrees

Question 16

CR for AP oblique toes

Answer 16

perpendicular to third MTP joint

Question 17

Patient position for lateral great and second toe

Answer 17

lateral recumbent on unaffected side

Question 18

CR for lateral toes

Answer 18

PIP joint, or IP joint for great toe

Question 19

patient position for lateral third to fifth toes

Answer 19

lateral recumbent on affected side

Question 20

reasoning for axial projection AP foot

Answer 20

demonstrates the tarsometatarsal joint spaces and reduces foreshortening

Question 21

degree of angulation for AP axial foot

Answer 21

10 degrees, drop SID 1 inch

Question 22

rotation for oblique foot

Answer 22

30 degrees medial rotation

Question 23

rotation for lateral foot

Answer 23

mediolateral rotation

Question 24

Which open joint spaces should be seen for AP axial foot

Answer 24

open joint space between medial and intermediate cuneiforms

Question 25

Metatarsals free of superimposition on AP medial oblique foot

Answer 25

third through fifth metatarsals

Question 26

what is superimposed on AP oblique foot

Answer 26

bases of the first and second metatarsals superimposed on medial and intermediate cuneiforms

Question 27

aculsion fracture of the base of the fifth metatarsal

Answer 27

Jones fracture

Question 28

ankle joint is formed by articulation between the talus tarsal and

Answer 28

lateral malleolus of fibula, inferior surface of tibia, medial malleolus of tibia

Question 29

which tarsal bone forms part of the ankle joint

Answer 29

talus

Question 30

essential projections of the calcaneus

Answer 30

axial (plantodorsal) and lateral (mediolateral)

Question 31

part position for axial (plantodorsal) calcaneus

Answer 31

ankle in right-angle dorsiflexion

Question 32

CR angle and enter point for axial (plantodorsal) calcaneus

Answer 32

40 degrees cephalic, enters plantar surface at base of third metatarsal

Question 33

patient position for AP ankle

Answer 33

supine or seated with affected extremity fully extended, ankle in right-angle dorsiflexion

Question 34

CR for AP ankle

Answer 34

perpendicular through ankle joint midway between malleoli

Question 35

Collimation for AP ankle

Answer 35

1 inch on sides of ankle and 8 inches lengthwise to include the heel

Question 36

rotation for AP oblique ankle

Answer 36

medial rotation 45 degrees

Question 37

CR for AP oblique ankle

Answer 37

perpendicular to ankle joint, midway between the malleoli

Question 38

part position for AP oblique mortise joint

Answer 38

ankle centered to IR, intermalleolar plane parallel with IR

Question 39

rotation for AP oblique mortise joint

Answer 39

leg and foot rotated medially 15-20 degrees

Question 40

lateral ankle position

Answer 40

turned toward affected side, leg and ankle in lateral position

Question 41

CR enters here for lateral ankle

Answer 41

medial malleolus

Question 42

What needs to be included in lateral ankle image

Answer 42

heel and fifth metatarsal base

Question 43

Why AP Stress ankles are used

Answer 43

to verify ligamentous tears

Question 44

position for AP Stress Ankle

Answer 44

same as AP, with foot in extreme inversion and eversion positions, immobilization is required

Question 45

structures seen for axial calcaneus

Answer 45

non rotated calcaneus and calcaneocuboid joint

Question 46

what is in profile for lateral calcaneus

Answer 46

tuberosity in profile, with sinus tarsi, calcaneocuboid and talonavicular joints open

Question 47

joint space visualized for AP ankle

Answer 47

tibiotalar joint space

Question 48

visualization of ankle in true lateral

Answer 48

tibiotalar joint visualized, with medial and lateral talar domes superimposed

Question 49

Which projection is used to check for Jones fracture

Answer 49

lateral ankle

Question 50

Degree of rotation for AP oblique ankle

Answer 50

45 degrees

Question 51

Why we rotate 45 degrees for AP oblique ankle

Answer 51

open tibiofibular articulation, distal tibia and fibula overlap some of the talus