XRAY position

Question 1

what is chopart joint?

Answer 1

midtarsal joints

-the talonavicular and calcaneocuboid

Question 2

Lisfrancs joint

Answer 2

-joint between tarsal bones and 5 mets

Question 3

anterior posterior (shows? central ray?)

Answer 3

• shows: phalagnes, sesamoids, metatarsals, tarsal bones

- central ray: angle 15* cephlad base of 3rd met

Question 4

Medial oblique view (projection name? shows? central ray?)

Answer 4

• proj: lateral oblique projection

- central: angle tube 45* aim at lateral cuneiform

Question 5

lateral oblique view (proj, shows? central ray?)

Answer 5

• proj: phalanges, mets, tarsal, sesamoids

- ray: angle tube 45* at medial cuneiform

Question 6

Lateral projection of the foot

Answer 6

• shows: 1st met, hallux, medial cunieform, navicular, talus, calcaneus
• ray: 90* to lateral cuneiform

Question 7

raised lateral hallux

Answer 7

• shows: proximal/ distal phalanges of the hallux
• ray: 90* to the center of hallux
• pt is standing with a foam under hallux

Question 8

Sesamoid or plantar axial

Answer 8

• shows: inferior aspect of mets and sesamoids
• ray:90* to the film and aim at inferior heel
• pt standing w/ foot on block

Question 9

calcaneal axial

Answer 9

• shows: subtalar, talocalcaneal joint and the calcaneus

- ray: 45* arimed at posterior subtalar/ talocalc joint

Question 10

Anterior-posterior of the ankle

Answer 10

• shows: tibia, fib, talus, ankle joint
• ray: anterior ankle joint
• pt standing w/ orthoposer with back of leg against the film

Question 11

Ankle mortise

Answer 11

• shows: tib, fib, talus, ankle joint (dec overlap between tibia/fibula)
• ray: anterior ankle joint
• pt foot rotated toward midline 15*

Question 12

lateral projection of the ankle

Answer 12

• shows: tibi, fibula, talus, calcaneus, ankle joint
• ray: 90* to film w/ ray entering lateral malleolus
• pt stands w/ medial malleolus against film