Ch 34 Facial Trauma Flashcards

1
Q

14 facial bones

A

nasal
lacrimal
zygomatic
inferior nasal conchae
vomer
maxilla
mandible

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2
Q

8 cranial bones

A

ethmoid
parietal
teporal
frontal
ethmoid
occ

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3
Q

Bones of the orbit

A

frontal bone
shenoid
zygomatic
lacrimal
maxilla
palatine
optic

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4
Q

Fx orbit

A

zygoma
palatine
maxilla

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5
Q

Fx of orbit which m starts here

A

inferior rectus

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6
Q

Superior orbital fissure CN?

A

CN 3, 4, 6

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7
Q

CN 5: jobs

A

m mastication
sensation
V1, V2 and V3

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8
Q

Branches of CN7

A

cervical
zygomatic
temporal
buccal
marginal mandibular

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9
Q

Denver Criteria RF

A

High E teauam mech
complx skull fracture
sev TBI
seatblt
thoracic injuries
scalp degloving

severe facial #
mandible fracture
hanging or clothes line neck injury
TBI or thacic injury
blunt cardiac rupture
first rib fracture

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10
Q

Clinical signs and sx consistent with + Denver criteria

A

arterial hemorrhage
cervical bruit
expanding cervical hematoma
focal neurological deficit
neuro finding not explained by CT
Ischemic stroke on secondary CT

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11
Q

Seidel sign

A

+ globe rupture: a clear band appears below the suspected injury site, indicating a leak. This is caused by the fluorescein diluting in the leaking fluid

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12
Q

Frontal bone injury site concerning features, imaging, management

A

sign trauma mech, ams, tender ndema over fronta lbone, CSF rhinorr

ct scan imaging (head/cspine, max face)

ATLS consultation specialty

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13
Q

Orbital injury site concerning features, imaging, management

A

**NEED TO ADD

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14
Q

Rhinorrhea concerning for ?

A

dural tear

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15
Q

Frontal sinus fracture requires what kind of exam?

A

ocular

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16
Q

Anterior table fracture: how to manage

A

admit

sinus prec: no nose blow, cough and sneeze muth open, hob 30deg

+ ctx 1-g IV q24h

+/- surg

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17
Q

Posterior table surgery # - consult?

A

Nsx
as can have dural tear

need abx

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18
Q

Superior orbital fissure syndrome

A

fracture of SOF =
fixed dilated pupil, upper lid ptosis, loss of corneal reflex, opthalmoplegia

*CN not involved - this is orbital apex syndrome (decr vis acuity)

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19
Q

Orbital blowout fracture - what is this?

A

inferomedial wall of orbit #

20
Q

Orbital blowout fracture - on exam?

A

visual acuity, pupillary exam, slit lamp with florescien, ocular pressure test

21
Q

Globe rupture concerning pupil change?

A

tear drop

22
Q

Orbital blowout fracture - Retrobulbar hematoma concern?

A

high iop, enopathlmos

Oculocardiac reflex - bradycardia
nausea syncope

23
Q

Retrobulbar hematoma tx

A

lateral canthotomy + methypredn 30mg then load then in 2H 15mg/kg q6h, acetazolamide and mannitol

24
Q

EOM - if upward gaze diplopia - concern what m?

A

inferior oblique m or inferior rectus mm

unconscious - forced adduction

25
Q

Nasal fracture - need to r/o ?

A

septal hematoma
drain
rhino rocket/anterior pack
abx

26
Q

Naso orbital ethmoid complex # - see?

A

loss of dorsonasal prominence
periorbital and glabellar ecchymosis
telecanthus - inner canthus’ >35mm (N 30-32)
+ bow string: lateral traction –> concern if can move whole thing

27
Q

Cribiform plate # may see?

A

rhinorrhea

28
Q

Naso orbital ethmoid complex - plan for management

A

nsx
CSF leak watch
optho to r/o rlobe
abx - clinda and 3rd gen cephalosprin

29
Q

Zygomaticomaxillary complex #/Tripod fracture - which 4 bones are fractures?

A

zygo arrticlates with frontal, sphenoid maxillary and temporal bone

30
Q

Zygomaticomaxillary complex #/Tripod fracture - findings

A

enopthalmos
periorbital and subjunctival hemorrhages
flattening of midface/malar asymm
trimus
inferior displ of globe and lateral canthus -> diplopia
infra orbital injury paresthesia of cheek/upper lip/atn incisors/alar of nose
intraoral hematoma

31
Q

Zygomaticomaxillary complex #/Tripod fracture - gold standard imaging

A

ct

32
Q

Zygomaticomaxillary complex #/Tripod fracture - nondisplaced vs displaced #

A

non - home, soft diet x6 weeks, elevive repair 1-14d

displaced or trismus = surg

33
Q

Le Fort # - I

A

floating palate

horizontal maxilla fracture, alveolar ridge, lateral nose and inf wall of maxillary sinus

34
Q

Le Fort # - II

A

floating maxilla

pyramidal # with teeth at base and nasofrontal suture at apex

fracture arch through posterior alveolar ridge, lateral walls of maxillary sinuse, inferior orbital rim and nasal bones

35
Q

Le Fort # - III

A

floating face ie craniofacial dysfunction

transverse # through nasofrontal suture, maxillo frontal suture, orbital walls and zygomatic arch

36
Q

Le Fort # needs what involved to call lefort?

A

sphenoid bone pterygoid plate involvement

37
Q

Mandible fracture: uni fracture - what to do?

A

look for another spot! U shaped

38
Q

Mandible fracture: assessment?

A

malocclusion
trismus
crepitus/bony step off
mandibular instability/lacs

inatraoral ecchymosis/loose teeth
open bite vs deviation on jaw

39
Q

Mandibular # management

A

early split wires/bar - comminuted dusplaced/injfected = soon

40
Q

Ellis classifcation for dental alveolar trauma

A

I fracture in enamel - tooth white

II fracture reaches dentin - tooth yellow

III fracture into pupl (tooth red)

41
Q

If newly missing teeth, how to find?

A

CXR

bronchoscopically in airway

cxr below diaphragm is fine

42
Q

Reimplanatation of teeth

A

amox clav
tetanus

43
Q

Lip lacs tx

A

approx each layer full thickness
m - monocryl 3.0, 4-0, vircyl 3-0
skin - nylon/prolene 6-0, 7-0
mucosa - chromic 3-0, 4-0

44
Q

Auricular hematoma

A

drain with 18g needle or scalpel

45
Q

TMJ reduction

A

syringe technique - between teeth and rolle AP
two fingers in and front of mandible and