Comparison of Medial Rectus Resection and Plication in Exotropic Patients

Purpose: To determine the surgical outcomes of the plication technique in comparison with the resection method on exotropic patients.

Methods: In this randomized clinical trial, a total of 52 exotropic patients (female, 51.9%) who are candidate for medial rectus strengthening will be randomly classified into plication (n=24) and resection (n=28) groups. The comprehensive visual and ocular examinations will be performed on all study subjects and they will be followed- up for three months postoperatively. Plication technique is the same as resection up to muscle suturing, in the next step, the sutures are passed through 2 scleral bites at 1 mm anterior to the muscle insertion, then the muscle was folded toward inside or outside by pulling and joining the sutures.

Study Overview

• Status: Unknown
• Conditions: Exotropia
• Intervention / Treatment: Procedure: Plication strabismus surgery; Procedure: Resection strabismus surgery

• Study Type: Interventional
• Enrollment (Anticipated): 52
• Phase: Phase 2; Phase 3

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

Patients with a residual exotropia and history of uni- or bilateral lateral rectus recession or recession and resection (R &R) and those exotropic patients who were going to have already recession and resection (R & R) operation due to unilateral constant exotropia will be considered as eligible cases to be included.

Exclusion Criteria:

Subjects with a history of prematurity, intellectual disability, lack of central fixation (nystagmus, eccentric fixation, retinopathy of prematurity) subjects with systemic or other ocular diseases, neurological disorders, uncooperative patients and participants with less than three-month postoperative follow-up will be excluded from this study.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Undergoing plication strabismus surgery	Procedure: Plication strabismus surgery; The technique was the same as resection up to muscle suturing, in the next step, the sutures were passed through 2 scleral bites at 1 mm anterior to the muscle insertion, then the muscle was folded toward inside or outside by pulling and joining the sutures. At the end, conjunctiva was repaired by vicryl 8/0.
Active Comparator: Undergoing resection strabismus surgery	Procedure: Resection strabismus surgery; resection strabismus surgery

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Postoperative ocular deviation	Postoperative ocular deviation will be measured at a distance of 6 meters three months after the surgery.	three months

Collaborators and Investigators

• Sponsor: Shahid Beheshti University of Medical Sciences

Study record dates

Study Major Dates

• Study Start (Anticipated): December 1, 2018
• Primary Completion (Anticipated): February 1, 2019
• Study Completion (Anticipated): May 1, 2019

Study Registration Dates

• First Submitted: December 6, 2018
• First Submitted That Met QC Criteria: December 6, 2018
• First Posted (Actual): December 7, 2018

Study Record Updates

• Last Update Posted (Actual): December 7, 2018
• Last Update Submitted That Met QC Criteria: December 6, 2018
• Last Verified: December 1, 2018

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Nervous System Diseases; Eye Diseases; Cranial Nerve Diseases; Ocular Motility Disorders; Strabismus; Exotropia
• Other Study ID Numbers: 13112

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: Undecided

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No