eMedicine Specialties > Otolaryngology and Facial Plastic Surgery > External Ear Diseases

External Ear, Aural Atresia: Follow-up

Author: Stephen S Park, MD, Professor and Vice-Chairman, Department of Otolaryngology-Head and Neck Surgery, Director, Division of Facial Plastic and Reconstructive Surgery, University of Virginia Medical Center/Cosmetic Surgery Center
Coauthor(s): David H Chi, MD, Assistant Professor, Department of Otolaryngology, Children's Hospital of Pittsburgh
Contributor Information and Disclosures

Updated: Nov 25, 2008

Outcome and Prognosis

The outcomes of microtia repair are reflected in the psychological benefit and satisfaction of the patient and/or parent. Brent surveyed his patients in 1992 and noted that those grading themselves as severely affected prior to surgery were 100% pleased with the result.11 Among patients who considered themselves moderately disturbed by microtia and underwent the procedure when younger than 14 years, 95.5% were satisfied with the decision to pursue surgery. In regards to the chest donor site, 62% of all people surveyed reported no concern, and 35% noted the scar as a concern but thought the operation to be worthwhile. Few patients (3%) expressed concern about the appearance of the chest scar.

Future and Controversies

The future of microtia repair includes the development of tissue engineering. Restrictions of present techniques include the limited availability of cartilage to repair the defect and the surgical morbidity of autogenous costal cartilage. Investigations have begun in which a small amount of cartilage may be harvested and expanded in vitro and in vivo. The initial procedure, which was proposed by Peer, used diced autogenous cartilage and placed it in a Vitallium ear mold.12 The mold was subsequently banked and harvested, but the results were not consistent.

More recently, investigations have demonstrated the ability to seed bovine chondrocytes on a biodegradable template and implant these molds into an athymic mouse; this process resulted in an auricle-shaped cartilage. Other studies have shown that autogenous transfer of tissue-engineered cartilage is possible in a rabbit model. The cells are placed on a biodegradable template that engineers 3-dimensional morphology and guides the growth of the new cartilage into an anatomic graft (see Image 15). Tissue-engineered cartilage may represent the implant of the future because of its ability to encompass the advantages of alloplastic and autogenous grafts.

 


More on External Ear, Aural Atresia

Overview: External Ear, Aural Atresia
Workup: External Ear, Aural Atresia
Treatment: External Ear, Aural Atresia
Follow-up: External Ear, Aural Atresia
Multimedia: External Ear, Aural Atresia
References

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Further Reading

Keywords

aural atresia, auricular atresia, congenital auricular deformity, small auricle, microtia, anotia, lop ear, cup ear, Stahl ear, peanut ear, anotic ear, peanut deformity, hypoplasia, hypoplastic ear, prominent ear, hemifacial microsomia, Goldenhar syndrome, Treacher Collins syndrome, Franceschetti syndrome, oculoauricular vertebral dysplasia, ear deformity, aural atresia, ear reconstruction

Contributor Information and Disclosures

Author

Stephen S Park, MD, Professor and Vice-Chairman, Department of Otolaryngology-Head and Neck Surgery, Director, Division of Facial Plastic and Reconstructive Surgery, University of Virginia Medical Center/Cosmetic Surgery Center
Stephen S Park, MD is a member of the following medical societies: American Academy of Facial Plastic and Reconstructive Surgery, American Academy of Otolaryngology-Head and Neck Surgery, American College of Surgeons, American Medical Association, American Rhinologic Society, Society of University Otolaryngologists-Head and Neck Surgeons, Triological Society, and Virginia Society of Otolaryngology-Head and Neck Surgery
Disclosure: Nothing to disclose.

Coauthor(s)

David H Chi, MD, Assistant Professor, Department of Otolaryngology, Children's Hospital of Pittsburgh
David H Chi, MD is a member of the following medical societies: American Academy of Otolaryngology-Head and Neck Surgery and Phi Beta Kappa
Disclosure: Nothing to disclose.

Medical Editor

Robert A Battista, MD, FACS, Assistant Professor of Otolaryngology, Northwestern University Medical School; Physician, Ear Institute of Chicago, LLC
Robert A Battista, MD, FACS is a member of the following medical societies: American Academy of Otolaryngology-Head and Neck Surgery, American College of Surgeons, American Neurotology Society, and Illinois State Medical Society
Disclosure: Nothing to disclose.

Pharmacy Editor

Francisco Talavera, PharmD, PhD, Senior Pharmacy Editor, eMedicine
Disclosure: Nothing to disclose.

Managing Editor

Gregory C Allen, MD, Assistant Professor, Department of Otolaryngology-Head and Neck Surgery, University of Colorado School of Medicine
Gregory C Allen, MD is a member of the following medical societies: American Academy of Otolaryngology-Head and Neck Surgery, American Academy of Pediatrics, American Cleft Palate/Craniofacial Association, American College of Surgeons, American Laryngological Rhinological and Otological Society, American Medical Association, Christian Medical & Dental Society, and Colorado Medical Society
Disclosure: Nothing to disclose.

CME Editor

Christopher L Slack, MD, Otolaryngology-Facial Plastic Surgery, Private Practice, Associated Coastal ENT; Medical Director, Treasure Coast Sleep Disorders
Christopher L Slack, MD is a member of the following medical societies: Alpha Omega Alpha, American Academy of Facial Plastic and Reconstructive Surgery, American Academy of Otolaryngology-Head and Neck Surgery, and American Medical Association
Disclosure: Nothing to disclose.

Chief Editor

Arlen D Meyers, MD, MBA, Professor, Department of Otolaryngology-Head and Neck Surgery, University of Colorado School of Medicine
Arlen D Meyers, MD, MBA is a member of the following medical societies: American Academy of Facial Plastic and Reconstructive Surgery, American Academy of Otolaryngology-Head and Neck Surgery, and American Head and Neck Society
Disclosure: Covidien Corp Consulting fee Consulting; US Tobacco Corporation unstricted gift unknown

 
 
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