CRANIOFACIAL MJS Flashcards

1
Q

You are treating a Markowitz III NOE via a bicoronal approach. You are doing transnasal wiring. Where do you put your drillholes

A

1-2mm Posterior to lacrimal fossa and inferior to the lacrimal crest. You want to over correct a little bit because telecanthus is so common.

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2
Q

Indications for ORIF of a condyle

A
  1. displacement of condyle into middle cranial fossa
  2. impossible to get adequate occlusion
  3. foreign body in the joint
  4. lateral extracapsular displacment of condyle
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3
Q

You see a patient with epibulbar dermoids. What condition do they have

A

Goldenhars

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4
Q

nasolacrimal duct drains where

A

inferior meatus

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5
Q

Painless, slow growing tumor of the parotid, what could it be.

A

if its bilateral, slow growing in old man is WARTHINS TUMOR. if its unilateral, nonpainful with no facial nerve involvment, its PLEOMORPHIC ADENOMA

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6
Q

NORMAL PARENTS + 1 KID WITH CLP
OR
1 PARENT WITH CLP + 0 KIDS WITH CLP

A

4% RISK FOR NEXT KID

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7
Q

NORMAL PARENTS + 2 KIDS WITH CLP

A

9%

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8
Q

1 PARENT + 1 KID WITH CLP

A

17%

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9
Q

1 PARENT WITH CLP AND LIP PITS (VAN DER WOUDES)

A

50%

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10
Q

tessier 7 cleft had what boney involvmenet

A

traverses the zygomatic arch and maxillary second molar

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11
Q

DIFFERENCE BETWEEN OVERBITE AND OVERJET IN ORTHONATHICS

A

overjet is the horizontal relationship between maxillary and mandibular incisors. overbite is the vertical overlap between the maxillary and mandibular incisiors.

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12
Q

lack of formation of mandibular ramus and condyle typica for which condition

A

HFM

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13
Q

abscence of malar bone and zygomatic arch seen in which condition

A

Treacher Collins

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14
Q

what percentage of patient undergoing BSSO get lower lip parasthesia

A

90%, its neuropraxic from the stretch

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15
Q

What are the criteria to operate on dupetrens disease

A

30 degree contracture of mCP or any contracture at PIP.

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16
Q

what are the contents of the anterior triangle of the neck

A

carotid sheath, CN 9, 10, 12, submandibular gland, tail of parotid, lymph nodes

17
Q

what are the contents of the posterior triangle of the neck

A

Accessory nerve, phrenic nerve, brachial plexus, lymph nodes

18
Q

what are the ducts for paroid gland, submandibular gland and sublingual gland

A

Stensons, Whartons and Ducts of Rivinus

19
Q

Name the only 5 free flaps you should be using in orpharyngeal recon (tounge, FOM, buccal muscosa)

A

RFFF, UFFF, ALT, Lateral Arm, PAP

20
Q

Neurologic innervation of glands of face

A

Parotid: auriculotemporal, CN 7, GAN, sympathetic plexus
Meibomian and lacrimal glands: lacrimal nerve (V1)
-orbital lobe: reflex secreter
-palpebral lobe: main secretor
Sublingual gland: lingual (V3)
Submandibular gland: chorda tympani (CN 7), submandibular ganglion (branch of lingual [V3]), and mylohyoid nerve (V3)

21
Q

Fibrous dysplasica is associated with malignant transformation to what?

A

osteosarcoma

22
Q

Define Lefort I, Lefort II and Lefort III

A

Le Fort I is a transverse fracture of the maxilla involving the
ZM and NM buttresses.
○ Le Fort II is a pyramidal fracture involving the ZM buttress,
inferior orbital rim, inferior and medial orbital wall, and
NF region.
○ Le Fort III causes craniofacial dysjunction and involves
the zygomatic arch, lateral orbital rim, lateral orbital
wall, orbital floor, medial orbital wall, and
NF region.