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Ear Reconstruction / Microtia
In total construction of the auricle (external
ear) the plastic surgeon must sculpt a delicate
convoluted framework from rib cartilage and cover it with a
fine skin envelope. Alloplastic (or artificial) frameworks are
not well-tolerated. At UCLA, it is believed that a patient's
rib (or costal) cartilage is the most reliable
framework.
The goal of the surgeon is to create
an acceptable representation of an external ear with proper
size, position and orientation to other facial structure. The
procedure is usually undertaken at 6 to 9 years of
age.
Generally, the reconstruction may be done is 4
stages (Brent technique) or 2 stages (Nagata technique)
depending on the patient's ear deformity (microtia type) and
surgeon preference for each case. The 4 staged technique
consists of: 1) Framework fabrication from rib cartilage;
2) Elevation of framework with skin graft and banked
cartilage; 3) Lobule (ear lobe) rotation; 4) Creation
of tragus (front of ear, covering the ear canal). The 2
stage technique consists of: 1) Framework fabrication from
rib cartilage, including the tragus; 2) Elevation of
framework with temporal parietal flap and skin
graft.
The first stage of the reconstruction requires
an overnight stay in the hospital. Other stages are outpatient
procedures. The entire process may take 6 months to one year
to complete.
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