Figure 1-7. Ossicles of the middle ear (separated and articulated).
1-19. EAR OPERATIONS
Ear operations are done on the canals, the middle and inner ears, and the
mastoid sinuses (airspaces within the temporal bone). Surgery may be done to correct
the effects of trauma or disease, or in an effort to correct hearing disorders.
1-20. PREP FOR EAR SURGERY
a. For operations involving the ear, preparation normally consists of washing the
outer ear and surrounding skin with an anti-bacterial detergent and irrigating the canal
with a mild antiseptic solution. The canal may also be cleaned with cotton applicators.
The hair should be shampooed.
b. Depending upon the approach in surgery and local policy, a 2-inch strip may
be shaved at an area of incision. This would also be true in mastoid operations. If hair
is to be shaved from the patient's head, the specialist should check local policy
regarding the disposition of the hair.
c. Positioning and draping.
(1) Quietness and immobility of the patient are most important in otological
(ear) surgery. The head must be carefully immobilized by whatever method is
prescribed for a particular procedure. The patient is to be placed on his back with his