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Podiatry Handbook notes > Radiology > Flashcards

Radiology Flashcards

1
Q

Angle of gait: definition and normal values

A

amount foot deviates from line of progression

-7 to 10 degrees

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2
Q

Base of gait: definition and normal value

A
  • Distance between medial malleoli

- 1 inch

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3
Q

Ap radiographic: position of beam

A
  • beam 15 degrees from perpendicular in cephalad direction

- aim for MTJ (base of 3rd)

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4
Q

Lateral radiograph: position of beam

A

-foot parallel to film

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5
Q

Medial Oblique radiograph: position of beam and what can you see

A
  • tube at 45 degrees

- can view the cuboid, navicular, lateral foot

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6
Q

Hindfoot alignment view: position of beam and what is measured

A
  • beam at 10 degrees

- to measure RF coronal plane axis

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7
Q

Calcaneal axial view: to view what

A

posterior calcaneus to visualize calcaneal trauma

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8
Q

Harris Beath view : to view what

A

views medial and posterior STJ facets

-great for coalitions

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9
Q

Broden view: position of foot and beam

A
  • Ankle is dorsiflexed, with leg internally rotated 30 degrees
  • X-ray beam is cephalic tilt of 10-40 degrees
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10
Q

Ankle mortise view: position of the leg

A

AP view with 15 degrees of internal rotation

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11
Q

Cyma line: pronation vs supination

A
  • Anterior break (pronated)- TN joint over CC

- Posterior break (supinated)-TN joint posterior to CC

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12
Q

Kirby’s sign

A
  • posterior facet of talus abuts calcaneal floor and occludes sinus tarsi
  • sign of maximum pronation
  • opposite of bullet hole sinus tarsi
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13
Q

Seiberg’s index

A
  • used to diagnose MPE

- relationship of the sagittal plane of 1st MT neck

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14
Q

Critical components needed to read Xray (4)

A
  • Labelled (name, age) Marker R/L
  • Views
  • WB/ NWB
  • Quality
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15
Q

Soft tissue descriptors to look on X Ray (7)

A

density

foreign body

calcifications

contour

gas/ emphysema

defects

tumors/mass

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16
Q

Bone descriptors to look for on Xray (9)

A

cortex integrity

thickness of cortex

density

periosteal reaction

erosions

bone tumor/masses

fractures

subchondral sclerosis

physeal plates

17
Q

Joint descriptors to look for on X-ray (6)

A

subchondral sclerosis

width

congruency

position

loose bodies/joint mice

coalition

18
Q

Biomechanical descriptors to look for on X-ray

A

ONLY FOR WEIGHTBEARING

  • joint deformities
  • angles
19
Q

General rules for angles changing in flatfoot and cavus foot

A

All angles decrease in cavus and all angles increase in planus EXCEPT:

  • talar head uncovering
  • 1st MT head declination
  • 1st MT calc angle
  • navicular height

Podiatry Handbook notes (10 decks)

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