| What
Happens in a Bone Anchored Hearing Aid Operation |
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A - The Incision is made behind the ear
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| B - The bone surface is exposed
by elevating the skin and the periousteum. Using gentle surgical techniques
under profuse irrigation with salt solution to avoid tissue trauma,
a 3-4mm hole is prepared. This hole is threaded with a titanium |
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C - Three to four months later the second operation
is performed. Hair bearing skin above the fixture is removed and
a subcutaneous reduction of tissue is performed. A thin skin transplant,
free from hair sacs is taken from the fold behind the auricle.
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| D - The hair-free transplant is trimmed and applied
over the fixture. |
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| E - The transplant is sutured in place and the
defect behind the ear is closed. |
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| F - To allow the skin-penetrating abutment to
be fitted, a hole is punched in the transplant. The cover screw, which
has been protecting the inner threading of the fixture, is removed. |
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| G - The skin penetrating abutment consists of
a titanium coupling device which is held in place by an inner screw. |
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| H - A healing cap is fitted to the titanium coupling
device. This secures a strip of gauze during the healing period of
two to three weeks. |
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