Flashcards on Treacher-Collins Syndrome: Surgical Management
Treacher-Collins Syndrome: Comprehensive Surgical Management
Tap to flip · Swipe to navigate
Craniofacial reconstructive surgery
44 cards
Card 1
Question: What are the four surgical stages commonly used in craniofacial reconstructive surgery for complex deformities?
Answer: 1) Correct functional emergencies (eg, airway, corneal exposure). 2) Zygomaticomaxillary reconstruction with cranial bone grafts (usually age 2–4). 3)
Card 2
Question: What functional emergencies are addressed in the first stage of craniofacial reconstruction and how are they managed?
Answer: Respiratory distress is managed with early mandibular distraction or tracheostomy; corneal exposure is managed with eyelid reconstruction.
Card 3
Question: What is the primary goal of the third stage (mandibular distraction) in craniofacial reconstruction?
Answer: Bilateral elongation of the ascending ramus and closure of the anterior open bite to establish proper mandibular function and occlusion.
Card 4
Question: When is distraction osteogenesis of the reconstructed zygomaticomaxillary complexes typically performed and why?
Answer: Usually between 5 and 8 years of age, when zygomaticomaxillary growth is the limiting factor in overall craniofacial growth.
Card 5
Question: What are the key surgical principles for reconstructing full-thickness lower eyelid colobomas?
Answer: Reconstruct all eyelid components; commonly use a superior eyelid myocutaneous flap rotated down (Z-plasty along coloboma borders), release the orbita
Card 6
Question: What donor site and graft design are preferred by the author for zygomaticomaxillary reconstruction and why?
Answer: Parietal (calvarial) bone grafts are preferred. A paper template of the malar bone, zygomatic arch, and lateral orbit is used to design bilateral sing
Card 7
Question: How are free parietal bone grafts fixed in zygomaticomaxillary reconstruction to ensure stability?
Answer: The grafts are fixed to the orbital and maxillary bone with 3–4 screws (about 16 mm); the posterior graft surface should contact the masseter and loca
Card 8
Question: What challenges are characteristic of zygomaticomaxillary reconstruction?
Answer: Large amount of bone required, need to adapt grafts to defect contour, achieve necessary projection, and avoid secondary bone resorption.
Card 9
Question: What preoperative assessments are important for patient selection in craniofacial reconstructive surgery?
Answer: Careful physical exam of retropharyngeal space for airway risk (micrognathia), assessment of hearing and speech, and dental impressions to plan mandib
Card 10
Question: What are the main treatment goals of craniofacial reconstructive surgery as described in the content?
Answer: Correct colobomas, reconstruct malar bones and zygomatic arches, establish adequate maxillomandibular relationship with functional occlusion, harmoniz