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A modified removable suture in trabeculectomy

C T Hsu1, S S Yarng

  • 1Department of Ophthalmology, Chang Gung Memorial Hospital, Taipei, Taiwan.

Ophthalmic Surgery
|September 1, 1993
PubMed
Summary
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A novel externalized hemibow tie suture technique for trabeculectomy (glaucoma surgery) offers a safe and adjustable method for managing intraocular pressure and filtration post-surgery.

Area of Science:

  • Ophthalmology
  • Surgical Innovation
  • Glaucoma Management

Background:

  • Trabeculectomy is a common glaucoma surgery to reduce intraocular pressure.
  • Scleral flap closure is a critical step influencing surgical outcomes.
  • Current methods may lead to overfiltration or inadequate filtration.

Purpose of the Study:

  • To evaluate a modified scleral flap closure technique using an externalized hemibow tie suture.
  • To assess the safety, efficacy, and complication rates of this new method.

Main Methods:

  • An externalized hemibow tie suture was used for scleral flap closure in 28 eyes (20 trabeculectomies, 8 combined procedures).
  • Sutures were removable in the early postoperative period (mean 16.75 days).
  • Mean follow-up was 11.36 months.

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Main Results:

  • Overall success rate was 78.6%.
  • Immediate and long-term efficacies were 77% and 56%, respectively.
  • Lower incidence of overfiltration complications compared to other methods; adjustable filtration was possible.

Conclusions:

  • The externalized hemibow tie technique is a safe and simple method for scleral flap closure in trabeculectomy.
  • This technique allows for adjustable filtration and reduces postoperative complications.
  • It provides a valuable alternative for glaucoma surgical management.