Positioning

Question 1

AP foot projection is also known as?

Answer 1

AP axial and Plantodorsal

Question 2

What knee projection places the IR under the pts knees on top of the wheelchair seat?

Answer 2

Holmblad

Question 3

An AP mortise projection of the ankle rotates the foot how many degrees?

Answer 3

15-20 degrees medially

Question 4

What is the SID for a lower leg projection?

Answer 4

44-48

Question 5

What is the CR angle on a mediolateral knee?

Answer 5

5-7 degrees cephalad

Question 6

When performing an AP mortise ankle the intermalleolar lines are what to the IR?

Answer 6

parallel

Question 7

Which projection is performed for the lis-franc injury?

Answer 7

weight bearing bilateral foot

Question 8

Where do you center for an AP knee?

Answer 8

1/2 in distal to the apex of the patella

Question 9

Where do you center for a mediolateral calcaneous?

Answer 9

1 in distal to the medial malleolus

Question 10

How much do you rotate the foot on an oblique projection of the foot?

Answer 10

30-45 degrees medially

Question 11

What do you do to a patients legs on an AP hip projection?

Answer 11

internally rotate them 15-20 degrees internally

Question 12

If the pt is in a Cleaves position, what position are the legs?

Answer 12

abducted 45 degrees

Question 13

Where should the CR enter for a plantodorsal projection of the calcaneous?

Answer 13

base of the third metatarsal angled 45 degrees

Question 14

What is the tube angle for an AP axial foot?

Answer 14

10 degrees toward heel of foot

Question 15

When the fibula is superimposed over the superior aspect of the proximal tibia, which way is the leg rotated?

Answer 15

externally

Question 16

How do you position the plantar surface of the foot for an AP ankle projection?

Answer 16

perpendicular to the IR

Question 17

Which ankle projection best demonstrates the distal tib/fib joint open?

Answer 17

45 internally rotated oblique

Question 18

Damage to the longitudinal arches of the foot are best demonstrated with what projection?

Answer 18

Lateral weight bearing foot

Question 19

Where is the patella visualized on an AP oblique knee with medial rotation?

Answer 19

superimposed over the medial condyle of the femur

Question 20

On an AP knee if the pt’s waist is 25in or more how is the CR angled?

Answer 20

3-5 degrees cephalic

Question 21

What type of projection are the Houston and Settagast?

Answer 21

tangential

Question 22

Which method is demonstrated with a PA axial projection of the knee when the pt is prone with a 45 degree flexion of the knee?

Answer 22

Camp coventry

Question 23

Which projection of the knee uses a curved cassette

Answer 23

Beclere

Question 24

Where do you center for toe projections?

Answer 24

Head of the metatarsals

Question 25

Which lateral toes are projected lateromedial?

Answer 25

1st through 3rd

Question 26

Which lateral toes are performed mediolateral?

Answer 26

4th and 5th

Question 27

What does a tangential projection of the toes demonstrate?

Answer 27

Sesmoid bones at the head of the 1st metatarsal

Question 28

Where is the CR for a tangential foot projection?

Answer 28

- 1st metatarsophalangeal joint - foot dorsiflexed 15-20 degrees - pt prone to reduces OID

Question 29

Where is the CR on an AP oblique foot medial rotation?

Answer 29

- base of the third metatarsal - foot rotated 30-35 degrees medially - open sinus tarsi - all of navicular and 3rd cuneiform visualized

Question 30

How can you tell if an AP foot is underrotated?

Answer 30

the sinus tarsi and other joints are closed

Question 31

What is visualized on a lateral foot if the heel is elevated?

Answer 31

- unaligned talar domes | - fibula is posterior alone

Question 32

What is visualized on a lateral foot if the forefoot is elevated?

Answer 32

- fibula is anterior | - talar domes seen separately

Question 33

Where to you center on a mediolateral foot projection?

Answer 33

base of the third metatarsal and midcuneiform

Question 34

Where is the CR on an AP and lateral weightbearing foot projection?

Answer 34

15 degrees cephalic at the base of the metatarsals

Question 35

Which joint spaces are open on a mediolateral calcaneous?

Answer 35

navicular calcaneous and cuboid- tarsals closest to IR

Question 36

Where do you center on a mediolateral calcaneous?

Answer 36

1 in inferior to the medial malleolus

Question 37

Where do you center on an AP ankle?

Answer 37

mid malleolar line

Question 38

The plantar surface of the foot is ___ to the IR on and AP ankle?

Answer 38

perpendicular

Question 39

How much of the tib/fib should be shown on an ankle projection?

Answer 39

distal 1/3

Question 40

How much of the foot should be seen on an ankle projection?

Answer 40

the proximal 1/2

Question 41

What is the projection on a lateral ankle?

Answer 41

mediolateral-always

Question 42

What is the position of the foot on a lateral ankle?

Answer 42

dorsiflexed

Question 43

Which way is the foot rotated on an inversion AP stress ankle?

Answer 43

medially

Question 44

Which way is the foot turned on an eversion AP stress ankle?

Answer 44

laterally

Question 45

What is the tube angle for a pt with a 19cm or less waist?

Answer 45

3-5 degrees caudal

Question 46

What is the tube angle on an AP knee for a pt with a waist 19-24cm?

Answer 46

0 angle

Question 47

Which joint is open on a AP oblique knee with 45 degree medial rotation?

Answer 47

the proximal tib/fib joint

Question 48

What do the tib/fib look like on an AP oblique knee with lateral rotation?

Answer 48

they are superimposed

Question 49

Where do you center for an lateral knee?

Answer 49

1in distal to medial epicondyle

Question 50

Where do you center for a cross table lateral knee?

Answer 50

1in distal to lateral epicondyle

Question 51

What are the 3 method names of the projections that demonstrate the interconylar fossa?

Answer 51

- Camp Coventry - Holmblad - Beclere

Question 52

Which two intercondylar fossa projections are axial and what is the angle on the tube?

Answer 52

- Camp Coventry (pa axial) - Beclere ( ap axial) - tube angled 40-50 to match degree of flexion of the knee

Question 53

What are the 5 tangential projections done for the patella?

Answer 53

- Merchant Bilateral - Inferiosuperior - Hughston - Settagast - Superioinferior sitting

Question 54

What is visualized on the tangential knee projections?

Answer 54

- intercondylar sulcus and patella are visualized | - patellofemoral joint space are open

Question 55

Which tangential patella projections require the pt to be prone?

Answer 55

- settagast- 90 degree knee flexion | - houston- 55 degree knee flexion

Question 56

How much is the knee flexed on a mediolateral patella?

Answer 56

5-10 degrees

Question 57

Where do you center for an AP pelvis?

Answer 57

Midway between the asis (2in distally) and symphosis pubis

Question 58

Where do you center for a Bi-lateral frog leg?

Answer 58

3 in below the asis at the midline of the body

Question 59

What is the pt position for a bilateral frog leg?

Answer 59

pt supine with knees bent 60 degrees and abducted 40-45 degrees

Question 60

Where do you center for an AP unilateral hip?

Answer 60

2 inches medially to the asis and 3-4in inferiorly

Question 61

What is the method name for the unilateral frog leg?

Answer 61

Modified Cleaves

Question 62

Where do you center for a modified cleaves?

Answer 62

at the femoral neck/ mid crease of thigh

Question 63

What type of projection is the Danielus-Miller?

Answer 63

Inferiosuperior

Question 64

Where do you place the cassette for a danielus-miller?

Answer 64

in the crease above the iliac crest and parallel to femoral neck

Question 65

Where is the lesser trochanter on a modified cleaves?

Answer 65

in profile on the medial side of the femur