Toes Foot and ankle

An AP projection of the second toe reveals that the interphalangeal joints are not open What is the most likely cause for this radiographic outcome

Incorrect or inadequate CR centering or angle

Where is the central ray directed for an AP projection of the toes

third MTP joint

How is the patient placed for a lateral projection of the great toe and second toe

recumbent on affected side

How many degrees are the lower leg and foot rotated for the AP oblique projection of the toes in medial rotation

30 to 45 degrees

How many degrees of angulation are required to open the IP joint spaces of the toes on an AP projection

15 degrees

How many phalanges are in the great toe

Two

A patient comes to radiology for an evaluation of the longitudinal arch of the foot Which of the following projections would provide the best information about the arch

AP and lateral weight-bearing projections of foot

An AP oblique foot with medial rotation demonstrates superimposition of the third through fifth metatarsals How must the original position be changed to eliminate this problem

Decrease obliquity of the foot

An avulsion fracture of the base of the fifth metatarsal is called a ____ fracture

Jones

Extending the ankle joint or pointing the foot and toes downward is called

plantar flexion

For a lateral projection of the foot the central ray is directed to the

base of the third metatarsal

For an AP oblique projection of the foot in either medial or lateral rotation the plantar surface of the foot should form an angle of

30 degrees

How many bones are in the foot

26

How many tarsal bones are in the foot

Seven

How much CR angulation to the long axis of the foot is required for the plantodorsal axial projection of the calcaneus

40°

Intermediate cuneiform

E

Phalanges

A

Medial Cuneiform

D

Cuboid

H

Navicular

G

Tarsals

C

On which side of the foot does the cuboid lie

Lateral

tibiotalar joint

A

navicular

E

talus

D

sinus tarsi

B

The central ray angulation for an AP oblique projection of the foot is

0 degrees

The central ray is directed to which of the following for an AP or AP axial projection of the foot

Base of the third metatarsal

The inferior aspect of the foot is termed the _ surface

plantar

The most commonly performed oblique projection of the foot is the oblique in

AP medial rotation

The name of the small round bones located on the plantar surface of the foot typically beneath the first MTP joint is the

sesamoids

The superior surface of the foot is termed the _ surface

dorsal

The talus articulates with how many bones

4

Which lateral projection of the foot is the most commonly performed

Mediolateral lateral recumbent position

Which foot position is performed to demonstrate the cuboid

AP oblique in medial rotation

Which of the following projections would benefit from using a compensating filter

AP foot

A correctly positioned lateral ankle will demonstrate the lateral malleolus superimposed over the posterior half of the tibia

True

Extending the ankle joint or pointing the foot and toes downward is called

plantar flexion

For a lateral projection of the ankle the central ray enters the

medial malleolus

For an AP ankle projection the central ray should be directed to enter at the

ankle joint midway between the malleoli

How should the lower limb be positioned to achieve the projection shown in the image below

15- to 20-degree medial rotation

The medial and lateral oblique projections of the ankle require the leg and foot to be rotated how many degrees

45

To prevent lateral rotation how should the foot be positioned for a lateral projection of the ankle

In dorsiflexion

What anatomy is labeled with the letter D in the image below

Medial malleolus