12 Tympanoplasty Tympanoplasty type 1, alternatively called myringoplasty, is the reconstruction of the perforated tympanic membrane using a material such as temporalis fascia. Perforation of the tympanic membrane. Following dissection of the soft tissues, and exposure of the external auditory canal and mastoid, the temporal bone is ready for the procedure. Care has been taken to preserve the tympanic membrane and the skin of the external auditory canal. EAC: External auditory canal MT: Mastoid tip TL: Temporal line ZR: Zygomatic root Using a curved micro knife, an incision is made in the skin of the posterior wall of the external auditory canal, at a distance of 3–4mm from the annulus fibrosis, parallel to it. II: Curved micro knife MIL: Annulus fibrosis AF: Annulus fibrosis HS: Henle spine TM: Tympanic membrane Next, a second incision is made superiorly using a No.11 blade or sickle knife. This incision should begin just anterior to the short process of malleus medially, and join the superior edge of the first incision laterally. II: No.11 blade or sickle knife MIL: Short process of malleus Definitions and Tips
Definition
Indications
Anatomical Orientation
Surgical Steps
Tympanoplasty
Only gold members can continue reading. Log In or Register a > to continue