All Knee

Question 1

List 3 method names that may be performed to demonstrate the intercondylar fossa of the femur/knee:

Answer 1

1. Holmblad Method
2. Camp- Coventry Method
3. Beclere Method

Question 2

State the 3 projections that are utilized for a routine patella series:

Answer 2

1. PA
2. Lateral
3. Axial- Merchant, Sunrise, Sunset, Skyline

Question 3

In what order should these projections be performed and why?

Answer 3

Lateral and PA first to rule out transverse fx

Question 4

List 2 things that will be demonstrated on an axial patella image.

Answer 4

1. verticle fx of the patella
2. Articulating surfaces of the patellofemoral articulations
3. Patella in profile

Question 5

What method will demonstrate the majority of the patella without superimposing?

Answer 5

Kuchendorf (sp?)

Question 6

The axial patella will demonstrate –1– fractures of the patella.

Answer 6

vertical

Question 7

The lateral patella will demonstrate –1– fractures of the patella.

Answer 7

transverse

Question 8

For a prone patient with their lower leg flexed 50 degrees up from the table and their foot resting on a support in order to demonstrate the intercondylar fossa, the CR angle should be –1–.

Answer 8

50 degrees caudal

Question 9

When the AP medial oblique projection of the knee is performed the patella will be seen –1–?

Answer 9

over the medial femoral condyle-internal rotation

Question 10

For proper positioning of all methods used to demonstrate the intercondylar fossa the CR should be –1–.

Answer 10

perpendicular to the lower leg

Question 11

Beclere Method

Answer 11

E. flex knee joint 60 degrees

Question 12

Camp Coventry

Answer 12

C. flex the knee joint 40 degrees

Question 13

Holmblad

Answer 13

F. adjust femur forward 20 degrees

Question 14

Settegast

Answer 14

B. hyperflex the knee joint

Question 15

PA Patella

Answer 15

D. adjust intercondylar plane parallel to the IR

Question 16

Lateral Patella

Answer 16

A. flex the knee joint 5-10 degrees

Question 17

The AP upright projection weight bearing exam of the knee will require the CR to be placed –1–.

Answer 17

Horizontal

Question 18

The above position/projection will demonstrate –1–.

Answer 18

tibiofemoral joint space narrowing

Question 19

Fill in the proper CR angle for the patient size for the AP projection knees.
19 to 24 cm (avg. pelvis) –1–
greater than 24 cm (large pelvis) –2–
less than 19 cm (thin pelvis) –3–

Answer 19

1. Perpendicular
2. 3 degrees- 5 degrees cephalic
3. 3 degrees- 5 degrees caudal

Question 20

The inferior portion of the patella is the –1–.

Answer 20

Apex

Question 21

The medial and lateral AP Oblique Projections of the knee require the leg be rotated –1– degrees.

Answer 21

45 degrees

Question 22

The CR should be directed to –1– for the AP and AP Oblique projections of the knee.

Answer 22

1/2 inch inferior to patellar apex

Question 23

The CR should be directed to –1– for the lateral projection knee.

Answer 23

the knee joint 1 inch distal to the medial epicondyle at an angle of 5-7 degrees cephalic

Question 24

Which femoral condyle is lower?

Answer 24

Medial condyle- 7 to 5 degrees lower

Question 25

How many degrees of flexion is required for the routine lateral knee?

Answer 25

20-30 degrees

Question 26

What method for intercondylar fossa utilizes a curved or built up IR?

Answer 26

Beclere Method

Question 27

When performing the axial/tangential projections of the patella, the CR will always be --1--.

Answer 27

Paralell to the patella

Question 28

What is the primary purpose for performing the PA patella rather than the AP?

Answer 28

Less Mag

Question 29

The term tangential means --1--.

Answer 29

skimming

Question 30

When performing the AP projection knee radiographs, the CR should be --1-- to the joint space and project the patella up and out of the joint space.

Answer 30

Parallel

Question 31

Name 2 "layman's terms" that may be seen on orders for the tangential axial patella.

Answer 31

sunrise or skyline

Question 32

List the degree/angle that is formed between the following structures when performing the Holmblad Method. - -1-- degrees between femur and IR - -2-- degrees between femur and lower leg - -3-- degrees between CR and lower leg - -4-- degrees between CR and femur

Answer 32

1. 70 degrees 2. 110 degrees 3. 90 degrees 4. 20 degrees

Question 33

How many degrees of flexion should be performed for the routine lateral patella and why?

Answer 33

5-10 degrees. You don't want to flex the knee anymore than this because if there is a patellar fx, you may make it worse and cause more px for the patient.

Question 34

The projection utilized for a lateral knee or patella should be --1--.

Answer 34

mediolateral

Question 35

Define the term varus.

Answer 35

turned inward. "knock knees"

Question 36

What is the method name for the standing flexion images of the knees?

Answer 36

Rosenberg Method