Cited by 143Reconstructive Facial Surgery TechniquesCongenital Ear and Nasal AnomaliesCraniofacial Disorders and Treatments

Nonsurgical correction of congenital auricular deformities

Matsuoy, Kiyoshi, Hayashi, Reiko, Kiyono, Mart, Hirose, Takeshi, Netsu, Yahiro·1990·Clinics in Plastic Surgery

Abstract

Congenital auricular deformities are found in 55.2 per cent of neonates at birth. When the deformities are not hypoplastic, nonsurgical correction is very easy and reliable. Lop ear and Stahl's ear respond well to the nonsurgical correction only during the neonatal period, while protruding ears and cryptotia respond until approximately 6 months of age. We noticed that there are variations in the time period for response to nonsurgical correction in the different types of auricular deformities. We have continually observed the natural changes in 1000 babies' auricular shapes from birth to 1 year of age. Lop ear and Stahl's ear were auricular deformities that appeared in 47 per cent of all newborn babies. Eighty-four per cent of these deformities disappeared spontaneously during the first year of life. They were present in 7 per cent of the 1000 babies at 1 year of age. On the other hand, the percentage of protruding ears increases from 0.4 per cent at birth to 5.5 per cent at 1 year of age. Our observations show that most of the protruding ears are acquired deformities. If a baby is placed in a supine position, the weight of the baby's head will fold the ear forward when the baby turns its head to one side; this is the mechanism presented as the probable cause for the acquired protruding ear.

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Crossref · 10.1016/s0094-1298(20)31252-9

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2 of 2 references verified0 citation errors · 0 not checkable

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  • Matsuo et al. reported auricular deformity rates of 55.2% at birth, 31.7% at 1 month, and 16.1% at 1 year in a Japanese population.

    “Matsuo et al. [13] reported auricular deformity rates of 55.2% at birth, 31.7% at 1 month, and 16.1% at 1 year in a Japanese population.”
  • The incidence of neonatal auricular malformations is reported to be 55.2-57.5%.

    “The incidence of neonatal auricular malformations is reported to be 55.2–57.5% (7).”
  • More than half of the untreated ears at 1 month had spontaneously resolved at 1 year.

    “That is, more than half of the untreated ears at 1 month had spontaneously resolved at 1 year.”
  • Self-correction rates differ greatly between different study populations, varying from 0% to 84%, which might depend on ethnicity or type of ear anomaly.

    “Self-correction rates differ greatly between different study populations, varying from 0%52 to 84%,53 which might depend on ethnicity or type of ear anomaly.53”

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Authors
Matsuoy, K., Hayashi, R., Kiyono, M., Hirose, T., & Netsu, Y.
Affiliations
Shinshu University Hospital (JP)
Venue
Clinics in Plastic Surgery
Publisher
Elsevier BV
Published
1990-04
Volume
17
Issue
2
Pages
383-395
ISSN
0094-1298 (ISSN-L)
OpenAlex
W76292813
Cited by
143
References
2
Citations by year
2026: 3 · 2025: 5 · 2024: 11 · 2023: 6 · 2022: 8 · 2021: 8 · 2020: 10 · 2019: 7 · 2018: 4 · 2017: 7 · 2016: 6 · 2015: 2 · 2013: 7 · 2012: 4
FWCI
1.08
Type
journal article
Language
en
Open access
closed
Locations
  • Clinics in Plastic Surgery (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Surgery › Reconstructive Facial Surgery Techniques
  • Health Sciences › Medicine › Genetics › Congenital Ear and Nasal Anomalies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Craniofacial Disorders and Treatments
Keywords
congenital auricular deformities, lop ear, protruding ears, cryptotia, spontaneous resolution, neonatal period, supine position, infant head shape
MeSH terms
Ear, External, Female, Humans, Infant, Infant, Newborn

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