- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04286945
Lateral Rectus Muscle Tendon Elongation
Lateral Rectus Muscle Tendon Elongation by an Auto Graft From the Resected Medial Rectus Muscle as a Monocular Surgery for Large Angle Sensory Exotropia
Study Overview
Status
Detailed Description
A prospective study done in Tanta university in the period between January 2017 and June 2018.It included 16 patients with sensory exotropia ≥50PD. Full history was taken. Visual acuity, cycloplegic refraction and fundus exam of both eyes was performed prior to surgery. Strabismus angles were measured at near and distance by alternate prism cover test. Any limitation of adduction or abduction was scaled from -4 to 0. Patients were followed for 6 months.
SURGICAL PROCEDURE:
The MR muscle was dissected through a limbal incision. Two single arm 6-0 Vicryl sutures were placed at desired distance from the insertion as the routine resection of rectus muscle and another pair of 6-0 Vicryl was placed at the insertion. The muscle was then incised from its insertion, and the posteriorly (distally) placed 6-0 Vicryl sutures were passed through the original insertion. The resected segment is then put in saline. A vicryl 6-0 suture was tied at the LR muscle insertion. The muscle was incised from its insertion. Next, the stump of the resected segment was then sutured to the sclera at the desired position measured by the strabismus caliber according to the surgical dosage sufficient to correct the premeasured distant angle (taking into consideration the length of the added segment, which will be added to the amount of recession), and the distal end of this stump was sutured with the proximal end of LR with the 6-0 Vicryl already placed on the LR. Now the elongated muscle was sutured at desired site from the original insertion of LR as done in routine rectus muscle recession.
The patients were followed at 1day after surgery, 2 weeks, 3 month, and 6 months.
In each visit the distant angle of deviation was measured by prism cover test, any limitation of adduction and abduction was scaled, and patient satisfaction with results at last follow up was obtained, all results were recorded and tabulated.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patients with monocular low vision or loss of vision due to congenital or acquired cause with exodeviation of the poorly seeing eye ≥ 50PD.
Exclusion Criteria:
- Patients with exotropia other than sensory type (alternating exotropia, intermittent exotropia)
- Angle of deviation less than 50 PD.
- visual acuity more than 0.2 decimal in affected eye .
- A or V pattern exotropia.
- Nystagmus .
- Refusal of surgery by the adult patients or caregiver of children.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: NA
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
OTHER: SENSORY EXOTROPIA PATIENTS WITH LARGE ANGLES .
Patients with monocular low vision or loss of vision due to congenital or acquired cause with exodeviation of the poorly seeing eye ≥ 50PD, were included in the study.
|
After resection of the medial rectus muscle, the resected segment is sutured to the lateral rectus muscle after dissection and marking to elongate and slaken the muscle then the elongated muscle is sutured to the sclera at the desired amount of conventional recession.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Distant angle of deviation after surgical correction
Time Frame: 6month
|
Measured by alternate prism cover test for near and far,which is considered successful if within10 prism diopter esotropia or exotropia.
|
6month
|
limitation of adduction and abduction
Time Frame: 6month
|
measured by a scale from -4 to 0; with-4 implying no adduction or abduction beyond midline, -3 implying for 75% deficit,-2 for 50% deficit,-1 for 25% deficit and 0 for full ductions.
|
6month
|
patient satisfaction with the procedure
Time Frame: after 6 month
|
score assesed by questionnaire of 3questions based on satisfaction with degree of alignment, aesthetic appearance, limitation of adduction and abduction. 0: I am not satisfied, 1: I am moderately satisfied, 2: I am satisfied, 3: I am very satisfied, and Iwould recommend it to another. Based on the score (0-3 unsatisfied, 4-6 moderately satisfied, 7-9 very satisfied). |
after 6 month
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 21423
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Time Frame
IPD Sharing Access Criteria
IPD Sharing Supporting Information Type
- STUDY_PROTOCOL
- SAP
- CSR
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