What are the steps of dacryocystorhinostomy

summary

Dacryocystorhinostomy, this kind of operation may not be known. Chronic dacryocystitis is a very common disease, but because the effect of drug treatment is not good, so it is generally treated by surgery. Let's talk about the steps of dacryocystorhinostomy.

What are the steps of dacryocystorhinostomy

First, the patients need to make a longitudinal skin incision at 4-5mm of the nasal side of the inner canthus, the length of the incision is 15-20mm, and the curvature is not more than 10-15 degrees. The medial canthus ligament was exposed after separation. The medial canthus ligament was cut across the anterior lacrimal ridge.

Secondly, the periosteum was cut along the anterior lacrimal ridge 0.5mm from the nasal side of the anterior lacrimal ridge, and the periosteum was separated. The range of separation was as follows: up to the medial canthus ligament, up to about 3mm, down to the nasolacrimal duct orifice, and up to the posterior lacrimal ridge, so that the periosteum and dacryocyst left the lacrimal fossa together.

Third, making bone hole. The anterior lacrimal ridge is the center of bone foramen, and the upper opening of nasolacrimal duct is lower. The anteroposterior diameter is about 14mm, and the upper and lower diameter is about 18mm. Methods to use small hemostatic forceps to crush the thin lacrimal bone plate to create a small bone hole, and then extend into the small bone biting forceps to gradually expand the bone hole.

matters needing attention

Dacryocystorhinostomy is the most classic surgical treatment for chronic dacryocystitis. Patients in the treatment of nasal dacryocystorhinostomy, need to do a good job before the preparation. Of course, the treatment after the operation is also very important.