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Single-knot sewing-machine suture: the first results

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Session Details

Session Title: Training and Innovation

Session Date/Time: Tuesday 10/10/2017 | 16:30-18:00

Paper Time: 17:30

Venue: Room 4.4

First Author: : M.Oliveira PORTUGAL

Co Author(s): :    P. Gil   J. Silva   J. Providencia   J. Povoa   C. Lobo   J. Murta     

Abstract Details


To report the first results of the single-knot sewing-machine suture, an approach to the correction of iridodialysis presented by our group in the Journal of Cataract and Refractive Surgery in 2016.


Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra - CHUC, Coimbra, Portugal


Consecutive case series of patients with traumatic iridodialysis who underwent single-knot sewing-machine suture, a new technique with single-thread single-knot suture in the managing of iridodialysis. All patients were evaluated for surgical indications, pre- and postoperative refractive status (visual acuity and corneal astigmatism), postoperative stability for implantation of an iris-fixated IOL and endothelial cell density. Visual acuity and intra ocular pressure were registered in clinical visits on 1st week, 1st month and biannually.


We included ten eyes from ten patients with post-traumatic iridodialysis of more than 30º. The included subjects underwent a surgical procedure using the single-knot sewing-machine suture. Some patients required secondary implantation of an iris-fixated IOL for correction of the refractive error. All patients presented an improvement of best corrected visual acuity with a reduction of endothelial cell density of less than 10%, in the last follow-up visit. A stable satisfactory aesthetic result was achieved in all cases, and no major complications were observed. The minimum follow-up period was 3 months and the maximum was 2 years.


Single-knot sewing-machine suture is a safe and effective technique for iridodialysis’ repair, being a simple and innovative substitute to the methods currently described in the medical literature.

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