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NYCC Bone & Joint > C3-C7 Fractures > Flashcards

C3-C7 Fractures Flashcards

1
Q

What is the diagnosis?

A

Compression Fx

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2
Q

What is the mechanism of a cervical compression fracture?

A

Compressive (axial load) hyperflexion

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3
Q

What is the stability of a cervical compression fracture?

A

Stable
(No neuro deficit, uncomplicated healing)

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4
Q

What are the radiographic findings of a cervical compression fracture?

A

Anterior wedging on lateral view (post. column intact)

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5
Q

If you have a patient with a history of acute trauma, and a wedged vertebra on radiographs, how would you determine a new injury from an old one?

A

(Dx: compressio Fx)
- Compare with old imaging
- if none, MRI for bone marrow edema

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6
Q

What structures are injured in a cervical burst fracture?

A

Fx of anterior and posterior parts of body, possibly post. elements

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7
Q

What is the mechanism of a cervical burst fracture?

A

Axial compression (^^force) w/ or w/o flexion

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8
Q

What is the stability of a cervical burst fracture?

A

Unstable
(85% have neuro deficit d/t cord damage)

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9
Q

What are the radiographic findings of a burst fracture?

A
  • Loss of anterior & posterior body height
  • retropulsion of fragments
  • angular kyphosis, spinous fanning, facet dislocation
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10
Q

What are the most common levels of an articular pillar fracture?

A

C4-C7, usually unilateral

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11
Q

What is the mechanism of an articular pillar fracture?

A

Hyperextension w/ or w/o lateral flexion

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12
Q

What is the stability of an articular pillar fracture?

A

Stable

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13
Q

What is the clinical presentation of an articular pillar fracture?

A

Focal pinpoint tenderness of posterior elements

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14
Q

What are the radiographic findings of an articular pillar fracture?

A
  • loss of pillar height
  • frequent associated Fx (pedicle, lamina)
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15
Q

What imaging modality is best to visualize an articular pillar fracture?

A

CT

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16
Q

What is the differential diagnosis for an articular pillar fracture?

A

asymmetric pillars

17
Q

What are the most common levels of a clay shoveler fracture?

A

C6-T2

18
Q

What is the mechanism of a clay shoveler fracture?

A
  • flexion avulsion of SP (eg. shoveling wet snow, squats w/ wt on spine)
  • direct impact
19
Q

What is the stability of a clay shoveler fracture?

A

stable
(heals non-union)

20
Q

What are the radiographic findings of a clay shoveler fracture?

A

“double spinous” sign on AP view (SP displaces inferiorly)

21
Q

What is the differential diagnosis for a clay shoveler fracture?

A

nuchal bone

22
Q

What is the diagnosis?

A

Articular pillar Fx

23
Q

What is the diagnosis?

A

Burst Fx

24
Q

What is the diagnosis including spinal level?

A

Clay shoveler Fx at C4 and C7

25
Q

What is the diagnosis?

A

Compression Fx

26
Q

What radiographic sign is present?

A

“Double spinous” sign
(Dx: clay shoveler Fx at C6)

NYCC Bone & Joint (20 decks)

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