Improved suture for fornix-based conjunctival flap in filtering surgery

Area of Science:

• Ophthalmology
• Surgical Techniques
• Glaucoma Surgery

Background:

• Early postoperative complications following filtering surgery, such as hypotony, anterior chamber flattening, and choroidal detachment, can significantly impact patient outcomes.
• Goniotrephination with a fornix-based conjunctival flap is a common filtering procedure for glaucoma management.
• Effective conjunctival closure is crucial for minimizing these adverse events.

Purpose of the Study:

• To describe and evaluate a new suture technique for conjunctival closure in goniotrephination surgery.
• To assess the efficacy of this technique in reducing early postoperative complications.

Main Methods:

• A novel meander-like running suture technique using 10.0 nylon was employed for conjunctival closure in 104 consecutive goniotrephinations.
• The technique involves dissecting the conjunctiva and suturing it into a shallow groove behind the limbus.
• Conjunctival closure was performed in a meander-like fashion to achieve a tight wound seal.

Main Results:

• The new suture technique resulted in a low incidence of external fistulation.
• Complications such as hypotony, anterior chamber flattening, and choroidal detachment were mild and infrequent.
• The mean induced astigmatism was -1.2 +/- 1.2 D, typically with-the-rule.

Conclusions:

• The described running suture technique provides a secure and effective method for conjunctival closure in goniotrephination.
• This approach significantly reduces the risk of major early postoperative complications, enhancing surgical safety and efficacy.
• The technique is a valuable addition to the surgical armamentarium for glaucoma management.