Lower Extremity Flashcards

1
Q

CR for the PA Axial Foot:

A

10 degrees posterior angulation Cephalic/proximally to the base of the third metatarsal

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2
Q

KNOW FOOT ANATOMY

A
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3
Q

When performing a medial oblique of the foot, the plantar surface forms a _____ angle to the plane of the IR

A

30 degree angle

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4
Q

All of the following are best demonstrated on a medial oblique of the foot except:

Base of fifth metatarsal
Cuboid
Third Cuneiform
First cuneiform

A

First Cuneiform

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5
Q

On a 30 degree oblique of the foot you best demonstrate on a lateral all of the following except:

1st cuneiform
2nd cuneiform
Navicular
Cuboid

A

Cuboid

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6
Q

Which of the following will best demonstarte the longitudinal arch of the foot?

A

Lateral weight bearing method

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7
Q

How should you routinely perform the longitudinal arch of the foot?

A

Lateromedial Projection

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8
Q

Where the foot and the tib fib make a 90 degree angle:

A

Dorsiflexion

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9
Q

Axial Calcaneous:

A

30 degree Cephalic angulation to the long axis of the foot at the base of the third metatarsal

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10
Q

The patient is seated on the table their leg is fully extended and their foot is hyper flexed the CR enters with a 40 degree Cephalic Angulation to the long axis of the foot at the base of the third metatarsal:

A

Axial Calcanious

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11
Q

AP Ankle:

A

The foot is dorsiflexed
The CR enters halfway between the medial and lateral malioulus

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12
Q

How many degrees do you oblique the part for the mortise oblique of the ankle?

A

15-20 degree medial oblique to the midline

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13
Q

What is the purpose of performing stress methods of the ankle? Who stressed the joint?

A

Inversion Eversion for ligament tear
Physician

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14
Q

Which bone is the weight bearing bone?

A

Tibia

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15
Q

Which bone is the non weight bearing bone of the lower leg?

A

Fibula

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16
Q

Which bone projects down more distally the Tibia or Fibula?

A

Fibula

17
Q

Which bone projects down more distally the Tibia or Fibula?

A

Fibula

18
Q

The tibia is _____ in relationship to the fibula

A

Medial and Anterior

19
Q

The fibula is ______ in relationship to the Tibia.

A

Lateral and Posterior

20
Q

Clinically we have a long bone and want to include both joint spaces what do you do as a technologist?

A

Increase SID
Turn the Cassette Diagonally

21
Q

KNOW ANATOMY OF THE KNEE

A
22
Q

The Knee CR

A

1/2 inch below the apex of the patella

23
Q

Anytime an anatomical part measures 19 cm or less on a pelvis we angle:

A

3-5 degree caudad angulation

24
Q

Anytime an anatomical part measures 19 cm-24cm on a pelvis we angle:

A

Perpendicular

25
Q

Anytime an anatomical part measures greater than 24 cm we angle the tube for the pelvis:

A

3-5 degree Cephalic

26
Q

When we position a lateral knee you flex the anatomical part:

A

20-30 degrees

27
Q

When you place a 3-5 degrees Cephalic angulation on the lateral knee the purpose is to:

A

Superimpose the condyles and epicondyles

28
Q

BE ABLE TO LOOK FOR ROTATION ON A LATERAL KNEE:

A

Rotated clean up
If the proximal tib fib relationship start to see the superimposition go away/move further apart: over rotated
If the fibula stays well within the tibia: under rotation

29
Q

Which of the following will best demonstrate the:
Menisci
Joint spaces
cartilage and it’s joint spaces
Arthritis

A

Bilateral AP Weight Bearing Knees

30
Q

When you perform a 45 medial oblique of the knee what is best being demonstrated?

A

Proximal Tibiofibular Joint Spaces without superimposition

31
Q

The patient is kneeling on all fours they lean forward 20 degrees, 70 degree angle the CR enters:

A

Perpendicular to the Tib Fib

32
Q

If you demonstrate any tunnel view of the knee the CR must always be:

A

Perpendicular to the Tib Fib/lower leg

33
Q

The patient is kneeling on all fours, lean forward 20 degrees, to create a 70 degree angle this is called:

A

Homblad

34
Q

The largest sesamoid bone in the body:

A

Patella

35
Q

Prone flexed at 90 degrees:

A

Settagast

36
Q

When a patient presents with a perforation:

A

Water soluble

37
Q

A tangential projection of the patella is not to be performed until you rule out what type of fracture of the lateral?

A

Transverse Fractures

38
Q

A tangential projection of the patella shows what type of fractures?

A

Vertical Fractures