J Korean Ophthalmol Soc.  2009 Jul;50(7):984-988. 10.3341/jkos.2009.50.7.984.

A Modified Technique of Bicanalicular Silicone Tube Intubation in Congenital Nasolacrimal Duct Obstruction

• Lee TS
• Chang M

• KMID: 2212483
• DOI: http://doi.org/10.3341/jkos.2009.50.7.984

Abstract

PURPOSE
To introduce a modified technique of bicanalicular silicone tube intubation, which can reduce slitting of the canaliculus and protrusion of the tube. METHODS: This study included 46 patients who underwent modified surgery for Congenital Nasolacrimal Duct (CNLD) obstruction. To be included in this study, patients were older than 13 months and had a history of failed probing. Using our modified technique, tube lengths can be appropriately adjusted by either pulling or releasing the tube at the medial canthus until a tube loop is in place without any tension to the upper and lower canaliculi. Two threads of silicone tube were tied together using 5-0 nylon over a silicone sponge (5x5 mm) and left within the nasal cavity for several months without fixation to the nasal mucosa. A successful surgery was clinically defined as no epiphora and no dye retention in the conjunctival sac. RESULTS: The mean age of patients at the time of surgery was 32.8 (+/-18.9) months. There were 22 males and 24 females. Prior to intubation, patients had been probed an average of 1.5 (+/-1.3) times, and the mean follow-up period was 12.6 (+/-14.2) months. The tube was removed at 5.4 (+/-1.3) months postoperatively on average. The success rates were 88%. Tube protrusions occurred in three eyes, and canalicular splittings were recorded in two eyes. No other serious complications were encountered. CONCLUSIONS: This new technique might enable us to remarkably reduce both protrusion and slitting of the canaliculus in bicanalicular silicone intubation for congenital nasolacrimal duct obstruction.

Keyword

Canalicular laceration; Congenital NLD obstruction; Silicone tube intubation; Tube protrusion

MeSH Terms

Eye
Female
Follow-Up Studies
Humans
Hypogonadism
Intubation
Lacrimal Apparatus Diseases
Male
Mitochondrial Diseases
Nasal Cavity
Nasal Mucosa
Nasolacrimal Duct
Nylons
Ophthalmoplegia
Porifera
Retention (Psychology)
Silicones
Hypogonadism
Mitochondrial Diseases
Nylons
Ophthalmoplegia
Silicones

Figure

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  Figure 1. Bicanalicular silicone tube is in place and silicone sponge is placed 2∼3 mm below the inferior meatus.

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  Figure 2. Schematic diagram shows that the ideal position of the silicone tube intubated in modified surgery is in place without tension and the silicone sponge is placed 2∼3 mm below the inferior meatus.

Reference

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