CRANIOFACIAL MJS

Question 1

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

Answer 1

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.

Question 2

Indications for ORIF of a condyle

Answer 2

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

Question 3

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

Answer 3

Goldenhars

Question 4

nasolacrimal duct drains where

Answer 4

inferior meatus

Question 5

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

Answer 5

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

Question 6

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

Answer 6

4% RISK FOR NEXT KID

Question 7

NORMAL PARENTS + 2 KIDS WITH CLP

Answer 7

9%

Question 8

1 PARENT + 1 KID WITH CLP

Answer 8

17%

Question 9

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

Answer 9

50%

Question 10

tessier 7 cleft had what boney involvmenet

Answer 10

traverses the zygomatic arch and maxillary second molar

Question 11

DIFFERENCE BETWEEN OVERBITE AND OVERJET IN ORTHONATHICS

Answer 11

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

Question 12

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

Answer 12

HFM

Question 13

abscence of malar bone and zygomatic arch seen in which condition

Answer 13

Treacher Collins

Question 14

what percentage of patient undergoing BSSO get lower lip parasthesia

Answer 14

90%, its neuropraxic from the stretch

Question 15

What are the criteria to operate on dupetrens disease

Answer 15

30 degree contracture of mCP or any contracture at PIP.

Question 16

what are the contents of the anterior triangle of the neck

Answer 16

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

Question 17

what are the contents of the posterior triangle of the neck

Answer 17

Accessory nerve, phrenic nerve, brachial plexus, lymph nodes

Question 18

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

Answer 18

Stensons, Whartons and Ducts of Rivinus

Question 19

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

Answer 19

RFFF, UFFF, ALT, Lateral Arm, PAP

Question 20

Neurologic innervation of glands of face

Answer 20

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)

Question 21

Fibrous dysplasica is associated with malignant transformation to what?

Answer 21

osteosarcoma

Question 22

Define Lefort I, Lefort II and Lefort III

Answer 22

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.