Lower extremity Projections

Question 1

For all toe projections the cassette size used?

Answer 1

10x12

Question 2

For all toe projections the SID is?

Answer 2

40”

Question 3

For all toe projections the Collimation is?

Answer 3

1” on all sides

Question 4

For toes AP/PA Axial what is the IR?

Answer 4

center 3rd MTP joint

Question 5

For toes AP/PA Axial what is the CR?

Answer 5

perpendicular to 3rd MTP joint CR angle 15 degrees posteriorly or elevate foot

Question 6

For toes AP/PA Axial what is the criteria to be met?

Answer 6

entire toes to distal metatarsals
no rotation
open interphalangeal and metatarsophalangeal joints

Question 7

For toes AP oblique Medial what is the IR?

Answer 7

center toes to IR

Question 8

For toes AP oblique Medial what is the CR?

Answer 8

perpendicular entering 3rd MTP joints- pt is rotated 30-45 degrees

Question 9

For toes AP oblique Medial what is the criteria to be met?

Answer 9

entire toes to distal metatarsal
open interphangeal and 2-5 metatarsophalangeal joints spaces
1st MTP not always open

Question 10

For all foot projections the cassette size is?

Answer 10

10x12

Question 11

For all foot projections the collimation is?

Answer 11

1” on all sides

Question 12

For Foot AP/AP Axial what is the IR?

Answer 12

center to base of 3rd metatarsal

Question 13

For Foot AP/AP Axial what is the CR?

Answer 13

10 degree toward heel entering base of 3rd metatarsal

Question 14

For Foot AP/AP Axial what is the criteria to be met?

Answer 14

toes to tarsals
no rotation of foot
overlap of 2-5 metatarsal
open joint spaces

Question 15

For Foot AP Oblique Medial what is the IR?

Answer 15

parallel to long axis center foot

Question 16

For Foot AP Oblique Medial what is the CR?

Answer 16

perpendicular to base of 3rd metatarsal- patient at 30 degree angle

Question 17

For Foot AP Oblique Medial what is the criteria to be met?

Answer 17

entire foot: toes to heel 
3-5 metatarsal free of superimpostion 
navicular, lateral cuneiform and cuboid with less superimpostion
tuberosity of 5th metatarsal
sinus tarsi seen

Question 18

For Foot Lateral what is the IR?

Answer 18

center to midfoot, 90 degree dorsifelxion

Question 19

For Foot Lateral what is the CR?

Answer 19

perpendicular to base of 3rd metatarsal

Question 20

For Foot Lateral what is the Criteria to be met?

Answer 20

entire foot
superimposed plantar surface of metatarsal head
fibula overlapping tibia
tibiotalar joint

Question 21

For Calcaneus Axial what is the cassette size?

Answer 21

10x12

Question 22

For Calcaneus Axial what is the IR?

Answer 22

center midline of ankle

Question 23

For Calcaneus Axial what is the CR?

Answer 23

midpoint of IR with cephalic angle of 40 degrees

Question 24

For Calcaneus Axial what is the criteria to be met?

Answer 24

calcaneus and calcaneocuboid joint

no rotation

Question 25

For Calcaneus Lateral what is the cassette size?

Answer 25

10x12

Question 26

For Calcaneus Lateral what is the IR?

Answer 26

long axis parallel to plantar surface

Question 27

For Calcaneus Lateral what is the CR?

Answer 27

1" distal to medial malleolus

Question 28

For Calcaneus Lateral what is the Criteria to be met?

Answer 28

entire calcaneus tuberosity in profile sinus tarsi open calcaneocuboid and talonavicular joint open

Question 29

For all Ankle projections what is the cassette size?

Answer 29

10x12

Question 30

For all ankle projections what is the collimation?

Answer 30

1" on sides, 8" lengthwise

Question 31

For ankle AP what is the IR?

Answer 31

center ankle, foot pointing up and flex

Question 32

For ankle AP what is the CR?

Answer 32

perpendicular through ankle joint

Question 33

For ankle AP what is the criteria to be met?

Answer 33

medial and lateral malleoli talus-overalapping distal fibula normal overlapping tibiofibular articulation

Question 34

For Ankle Lateral what is the IR position?

Answer 34

parallel with long axis , center to ankle joint

Question 35

For Ankle Lateral what is the CR position?

Answer 35

perpendicular to ankle joint

Question 36

For Ankle Lateral what is the criteria to be met?

Answer 36

ankle centered distal tibia, fibula, talus, calcaneus, and adjacent tarsals 5th metatarsal base and tuberosity seen

Question 37

For Ankle Oblique (Mortise) what is the IR?

Answer 37

center ankle joint with 15-20 degree rotation

Question 38

For Ankle Oblique (Mortise) what is the CR?

Answer 38

enter ankle joint

Question 39

For Ankle Oblique (Mortise) what is the criteria to be met?

Answer 39

entire ankle mortise distal tibia, fibula and talus talofibular open tibiotalar open

Question 40

For all Leg projections the cassette size is?

Answer 40

14x17

Question 41

For all leg projections the collimation is?

Answer 41

1" on sides, 1.5" beyond ankle/knee

Question 42

For AP leg what is the IR?

Answer 42

femoral condyles parallel to IR

Question 43

For AP leg what is the CR?

Answer 43

perpendicular to center of leg

Question 44

For AP leg what is the criteria to be met?

Answer 44

ankle/knee joint included | prox and distal articulation of tibia/fibula

Question 45

For Lateral Leg what is the IR?

Answer 45

patella/femoral condyles perpendicular to IR

Question 46

For Lateral Leg what is the CR?

Answer 46

perpendicular to midpoint of leg

Question 47

For Lateral Leg what is the criteria to be met?

Answer 47

ankle/knee joint included distal fibula superimposed by half tibia moderate separation of tibial/fibular bodies

Question 48

For all Knee projections the cassette size is?

Answer 48

10x12 except for bilateral then its 14x17

Question 49

For all knee projections the the collimation is?

Answer 49

8x10

Question 50

For AP knee what is the IR position?

Answer 50

1/2" below patellar apex

Question 51

For AP knee what is the CR Position?

Answer 51

1/2" below patellar apex less than 19cm= 3-5 degree caudal angle 19-24 cm= 0 degree more than 24 cm= 3-5 degree cephalic angle

Question 52

For AP knee what is the criteria to be met?

Answer 52

femoral condyles symmetrical slight superimposition of fibular head patella superimposed open femorotibial joint

Question 53

For Lateral knee what is the IR position?

Answer 53

patella/epicondyles perpendicular to IR

Question 54

For Lateral knee what is the CR position?

Answer 54

1" below medial epicondyle with a 5-7 degree cephalic angle | patient will flex knee 20-30 degrees

Question 55

For Lateral knee what is the criteria to be met?

Answer 55

fibular head and tibia slightly superimposed patella in lateral profile open patellofemoral joint spaces

Question 56

For AP weight bearing knee what is the IR position?

Answer 56

1/2" below apices of patella

Question 57

For AP weight bearing knee what is the CR position?

Answer 57

1/2" below apices of patella

Question 58

For AP weight bearing knee what is the criteria to be met?

Answer 58

both knees without rotation | knee joint spaces centered

Question 59

For AP oblique Lateral knee what is the IR position?

Answer 59

1/2" below apex of patella

Question 60

For AP oblique Lateral knee what is the CR position?

Answer 60

``` 1/2" below patellar apex Patient in 45 degree rotation less than 19cm= 3-5 degree caudal angle 19-24 cm= 0 degree more than 24 cm= 3-5 degree cephalic angle ```

Question 61

For AP oblique Lateral knee what is the criteria to be met?

Answer 61

medial femoral and tibial condyles tibial plateaus fibular superimposed over tibia open knee joint

Question 62

For AP oblique Knee Medial what is the IR position?

Answer 62

1/2" below patellar apex

Question 63

For AP oblique Knee Medial what is the CR position?

Answer 63

1/2" below patellar apex with patient in 45 degree rotation

Question 64

For AP oblique Knee Medial what is the criteria to be met?

Answer 64

tibial plateau tibia/fibula seperated at proximal articulation lateral condyles of femur open knee joint

Question 65

For PA Axial Homblad (intercondylar fossa) what is the cassette size?

Answer 65

10x12

Question 66

For PA Axial Homblad (intercondylar fossa) what is the IR Position?

Answer 66

@ level of apex of patella

Question 67

For PA Axial Homblad (intercondylar fossa) what is the CR position?

Answer 67

enter superior popliteal fossa exit @ level of patellar apex

Question 68

For PA Axial Homblad (intercondylar fossa) what is the criteria to be met?

Answer 68

open intercondylar fossa tibial plateaus in profile apex not superimposing

Question 69

For PA Axial Homblad (intercondylar fossa) what is the collimation?

Answer 69

8x10

Question 70

For PA Axial Camp-Coventry what is the cassette size?

Answer 70

10x12

Question 71

For PA Axial Camp-Coventry what is the IR position?

Answer 71

center the knee joint

Question 72

For PA Axial Camp-Coventry what is the collimation?

Answer 72

8x10

Question 73

For PA Axial Camp-Coventry what is the CR Position?

Answer 73

enter popliteal fossa exit patellar apex, CR angle will match knee angle

Question 74

For PA Axial Camp-Coventry what is the criteria to be met?

Answer 74

open intercondylar fossa apex not superimposing tibial plateau in profile

Question 75

For all Patella projections what is the cassette size?

Answer 75

10x12

Question 76

For AP and Lateral Patella projections what are the collimations?

Answer 76

AP-6x6 | Lateral- 4x4

Question 77

For AP Patella what is the IR position?

Answer 77

center to patella

Question 78

For AP Patella what is the CR position?

Answer 78

perpendicular to midpopliteal area exiting patella patient will rotate heel laterally 5-10 degrees

Question 79

For AP Patella what is the criteria to be met?

Answer 79

patella superimposed by femur | no rotation

Question 80

For Lateral Patella what is the IR position?

Answer 80

patella perpendicular to IR

Question 81

For Lateral Patella what is the CR position?

Answer 81

perpendicular entering @ midpatellofemoral joint patient will flex knee 5-10 degrees

Question 82

For Lateral Patella what is the criteria to be met?

Answer 82

knee flexed 5-10 degrees | patell in lateral profile

Question 83

For Tangential Settegast Method (sunrise) what is the cassette size?

Answer 83

10x12

Question 84

For Tangential Settegast Method (sunrise) what is the collimation?

Answer 84

4x4

Question 85

For Tangential Settegast Method (sunrise) what is the IR position?

Answer 85

patella perpendicular to IR, Center to joint space between patella and femoral condyles

Question 86

For Tangential Settegast Method (sunrise) what is the CR position?

Answer 86

perpendicular to joint space between patella and femoral condyles. CR angled 15-20 degrees cephalic

Question 87

For Tangential Settegast Method (sunrise) what is the criteria to be met?

Answer 87

patella in profile femoral condyles and intercondylar sulcus open patellofemoral articulation

Question 88

For all Femur projections what is the cassette size?

Answer 88

14x17

Question 89

For all Femur projections the collimation is?

Answer 89

1" on sides, 17" length

Question 90

For AP Femur what is the IR position?

Answer 90

thigh midline to IR knee included: 2" below knee joint hip included: top of IR @ ASIS Patient will rotate extremity 10-15 degrees

Question 91

For AP Femur what is the CR position?

Answer 91

Perpendicular to Midfemur

Question 92

For AP Femur what is the criteria to be met?

Answer 92

lesser trochanter not seen no knee rotation most femur and joint of interest in profile femoral neck not foreshortened

Question 93

For Lateral Femur what is the IR position?

Answer 93

with knee: 2" beyond knee | with Hip: @ level ASIS

Question 94

For Lateral Femur what is the CR position?

Answer 94

perpendicular to midfemur

Question 95

For Lateral Femur what is the criteria to be met?

Answer 95

most of femur and joint of interest