Face and Skull Fracture

Question 1

T/F: Conventional radiography for the evaluation of head injury has become practically obsolete

Answer 1

True

Question 2

What consists of 80% of skull fractures Identified as radiolucent line that unlike vascular grooves tends to cross sutures?

Answer 2

Linear skull Fractures

Question 3

Where are Linear Skull fractures most commonly found in?

Answer 3

Parietal and Temporal bones

Question 4

What kind of skull fracture results when Bones are directly pushed into the underlying meninges and often brain parenchyma and almost always in cranial vault bones due to high energy impact?

Answer 4

Depressed skull fracture

Question 5

What kind of fracture is a depressed skull fracture?

Answer 5

Open fracture

Question 6

What is the best imaging to diagnose Depressed skull fracture?

Answer 6

CT

Question 7

What kind of fracture may be seen in new born infants as an inward buckling of the calvaria without osseous fragments and also seen as a continuous smooth inward indentation of the skull calvaria?

Answer 7

Ping-Pong Fracture

Question 8

How large is a sutural diastasis at birth?

Answer 8

> 1cm

Question 9

How large is a sutural diastasis at age 2?

Answer 9

> 3mm

Question 10

How large is a sutural diastasis at age 3?

Answer 10

> 2mm

Question 11

T/F: Radiographic signs of basilar fracture can be very subtle or not seen at all

Answer 11

True

Question 12

What part of the skull are basilar fractures most commonly seen in?

Answer 12

Sphenoid and temporal bones

Question 13

What is the key clinical sign for Basilar fracture?

Answer 13

Battle sign and Raccoon eyes

Question 14

What is the best imaging for Basilar skull fracture?

Answer 14

CT

Question 15

What radiographic shape does an epidural hematoma partake?

Answer 15

Lentiform shaped

Question 16

What radiographic shape does a subdural hematoma partake?

Answer 16

Crescent shaped

Question 17

What Develops due to a meningeal tear and interposition of the leptomeninges and CSF with or w/o cerebral parenchyma?

Answer 17

Leptomeningeal cyst (growing fracture)

Question 18

What is the most common facial bone fracture?

Answer 18

Nasal fracture

Question 19

What is the best imaging to diagnose nasal fractures?

Answer 19

CT

Question 20

What is the result of sudden impact to the globe? And where is the most common site?

Answer 20

Blow-out fracture

Inferior orbit

Question 21

What kind of fracture is a form of a blow-out fracture that causes the Inferior rectus to be trapped?

Answer 21

Trapped-door fracture

Question 22

50% of Blow-out fractures involve what?

Answer 22

Medial wall

Question 23

What view may show opacification of the maxillary sinus from a blow-out fracture?

Answer 23

Water’s skull

Question 24

What is the best imaging modality for diagnosing Blow-out fractures?

Answer 24

CT

Question 25

What is the 2nd most common facial fracture (40% of mid-face fractures)?

Answer 25

Tripod fracture

Question 26

What is the most common mechanism of tripod fractures?

Answer 26

Blow to the malar region of the face

Question 27

Where are the fractures specifically seen to make it a tripod fracture?

Answer 27

1) zygomatic arch 2) orbital process of zygomatic bone and superior-lateral maxillary sinus wall 3) maxillary process of zygomatic bone

Question 28

Where does the fracture have to be in order to conclude it is a LeFort fracture?

Answer 28

Pterygoid plate

Question 29

What type of LeFort fracture involves horizontal maxillary fracture producing separation of the upper teeth from the face?

Answer 29

LeFort 1

Question 30

What type of LeFort fracture involves pyramidal-shaped fracture with the upper teeth at the base and the nasal-frontal suture at the apex?

Answer 30

LeFort 2

Question 31

What type of LeFort fracture involves cranial-facial separation?

Answer 31

LeFort 3

Question 32

What is a common facial fracture that is a result from assault?

Answer 32

Mandibular fracture

Question 33

T/F: Most mandibular fractures seem to be unilateral (>45%)

Answer 33

True

Question 34

What is the most common location of mandibular fractures?

Answer 34

Manibular condyle