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Innovations in Microtia Atresia Treatment: A 3D “Hearing” Ear in One Surgery

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1.  The most common Grade of Microtia seen for surgical reconstruction is: Grade 1 Grade 2 Grade 3 Grade 4

2.  Rib Cartilage ear reconstruction was first performed in the: 1940s 1950s 1960s 1970s

3.  Porous Implant Ear Reconstruction was first performed by Dr. Berghaus (Germany) in the: 1960s 1970s 1980s 1990s

4.  Porous polyethylene (Medpor, Su-Por) has all of the following characteristics except: Biocompatible 50% air Flexible Least reactive material

5.  The most critical component to a successful Porous Implant Ear Reconstruction (PIER) surgery is: Using a one-piece 3D implant instead of the traditional 2-piece implant Covering the front of the reconstruction with “ear-colored” skin Creating a meticulous fascial flap Symmetric position of the implant

6.  3D porous implants essentially eliminate which complication of ear reconstruction: Exposure Infection Fracture Malposition

7.  The advancement of 3d technology for Porous Implant Ear Reconstruction includes: Create implant that is mirror image of the non-microtia ear for an “exact” match Create a more realistic appearing, natural ear including a pseudo ear canal Reduce post-op complications All of the above

8.  Complications of Atresia Repair include: Facial nerve injury/facial paralysis Stenosis (closing of the canal) Hearing Loss (either gradual from the initial improvement or permanent hearing loss) All of the above

9.  What percentage of children with atresia should NOT have a surgical canal because the anatomy is too abnormal to achieve successful hearing? 30% 40% 50% 60%

10.  Combining Porous Implant Ear Reconstruction for Microtia with Bone Anchored Hearing System for a “hearing ear” can be completed in how many surgeries: 1 2 3 4