ABPS ABPS Craniofacial & Pediatric Plastic Surgery

Question 1

Which suture is prematurely fused in scaphocephaly (dolichocephaly)?

Accepted Answer

Sagittal suture

Answer

Premature fusion of the sagittal suture restricts lateral skull growth, producing a long, narrow head shape called scaphocephaly.

Question 2

Tessier's classification system organizes craniofacial clefts along which anatomical axes?

Accepted Answer

Numbered clefts 0–14 running through soft tissue and skeleton

Answer

Tessier numbered craniofacial clefts 0–14, describing their paths through both soft tissue and the underlying skeletal structures.

Question 3

In unilateral cleft lip repair, the Millard rotation-advancement technique primarily achieves lip length by which mechanism?

Accepted Answer

Rotating the medial lip element down and advancing the lateral flap

Answer

The Millard technique rotates the medial lip element inferiorly and advances the lateral flap into the gap to restore normal lip height.

Question 4

Velopharyngeal insufficiency (VPI) following cleft palate repair is best evaluated with which study?

Accepted Answer

Nasopharyngoscopy and nasometry

Answer

Nasopharyngoscopy visualizes velopharyngeal closure directly, while nasometry objectively measures nasal air emission during speech.

Question 5

Apert syndrome is caused by a mutation in which gene?

Accepted Answer

FGFR2

Answer

Apert syndrome results from gain-of-function mutations in FGFR2 (fibroblast growth factor receptor 2), causing craniosynostosis and syndactyly.

(ABPS) Certified American Board of Plastic Surgery Practice Test