Complete video of the surgical procedure for otolith disease

Jun 06, 2023 Source: Cainiu Health
Dr. Xu Gang
Introduction
Semicircular canal occlusion is a procedure in which a bony window is opened through the mastoid, the endolymph is aspirated, and then the lumen of the semicircular canal is filled via the bony window with a mixture of fibrin glue and uniform bone dust. This presses the membranous semicircular canal firmly against the bony wall opposite the window opening. Another fascia graft is then placed over the bony window to seal it. For surgery related to otolith disorders (e.g., benign paroxysmal positional vertigo), patients are advised to go to a正规 hospital and have the procedure performed by a qualified specialist.

Generally, surgical treatment for otolith disorders primarily includes semicircular canal occlusion and posterior ampullary nerve section. Taking semicircular canal occlusion as an example, the specific procedural steps are as follows:

1. After general anesthesia, position the patient in a lateral decubitus position, and disinfect and drape the head and neck area with sterile drapes.

2. Make a postauricular skin incision to fully expose and open the mastoid surgical field.

3. Use a drill to outline the posterior semicircular canal. Draw an imaginary line backward from the horizontal semicircular canal; at the intersection point with the posterior semicircular canal, create a bony window using a micro diamond burr to open the outer lymphatic space.

4. Subsequently, use a small cottonoid pledget to absorb the lymphatic fluid.

5. After clearly visualizing the membranous semicircular canal, fill the lumen of the canal through the bony window with fibrin glue and uniformly sized bone dust particles, firmly pressing the membranous canal against the opposite bony wall of the window.

6. Finally, cover the bony window with a fascial graft, sealing its edges with biological glue to prevent perilymph leakage.

Postoperatively, all patients may experience transient mixed hearing loss. Otolith disorder surgery should be performed at a正规 hospital by qualified specialists.