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ENT

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Diseases of The Ear

Question
23 out of 24
 

A newborn presents with bilateral microtia and external auditory canal atresia. Corrective surgery is usually performed is: [DNB Dec 2011]



A < 1 year of age
B 5-7 years of age

C Puberty
D Adulthood

Ans. B 5 -' 7 years

Classification

Grade I

-Grade II

Grade III

Mild deformity like

Low set ear (, inferiorly angled auricular cartilage)

Cupped ear (Has a deep conchal bowl)

All pinna structures are present but tissue deficiency and significant deformity exist

Also k/a classic microtia or peanut ear.

There is no recognizable landmark of auricle. It

includes anotia also

Treatment

Classical treatment involves auricular reconstruction in multiple stages. Patients undergo observation until the.aqe of 5 years to allow for growth of rib cartilage which is harvested for reconstruction. This approach offers the benefit of reconstruction with autogenous material which ultimately requires little or no maintainance.Typically reconstruction occurs in 4 stages.

Stages in reconstruction of Microtia

A. A Stage I

B. Stage II

C. Stage III

D. Stage IV

Auricular Reconstruction

After 2 - 3 months

Lobule Transposition After 3 months

Post Aurlcularskln grafting

After several months

Tragal Reconstruction and-soft tissue debulking

Goal- Symmetry in position of the reconstructed

cartilaginous ear framework with normal ear

Note -'Watch for pneumothorax postoperatively

(as Rib is used)

Goal- To align the lobule with the reconstructed cartilage framework

Goal- A post auricular sulcus is created to allow the ear

to project away from mastoid.

Note - skin for creation of sulcus is harvested from

groin, lower abdomen, buttocks, contralateral posterior sulcus or back

Diseases of The Ear Flashcard List

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