Correction of V-pattern Strabismus by Graded Recession of Inferior Oblique Muscle .

Not Applicable

Completed

• Conditions: Monocular Exotropia With V Pattern; V Pattern Esotropia
• Interventions: Procedure: graded recession of inferior oblique muscle

• Registration Number: NCT05786053
• Lead Sponsor: Tanta University

Brief Summary

V pattern strabismus is the commonest of alphabet pattern. Its identification is essential to plan a proper surgical management. Graded recession is a very logical approach to treat inferior oblique overaction (IOOA). The aim Is to evaluate the efficacy of graded recession of inferior oblique muscle for correction of different grades of V pattern.

Detailed Description

prospective interventional study for forty patients with V pattern strabismus and primary inferior oblique overeaction will be evaluated by prism cover test to assess the grade of IOOA and amplitude of V-pattern. Graded recession of IO muscle depends on the amplitude of the V-pattern and degree of IOOA. Eight mm recession for amplitude 7.5 to 10 degree and mild IOOA (10 or +1) ,10 mm recession for amplitude 11- 15 degree and moderate IOOA (11-15 or +2) and maximum recession for amplitude more than 15 degree and marked IOOA ( more than 15 degree or +3). Simultaneous correction of the horizontal deviation will be performed at the same sitting. Follow up after I week,1 month ,3 month and 6-month.

Study Timeline

• Study Start: 2020-10-01
• Primary Completion: 2022-01-31
• Study Completion: 2023-01-01
• Study First Submitted: 2023-02-20
• Status Verified: 2023-03
• Study First Submitted QC: 2023-03-23
• Last Update Submitted: 2023-03-23
• Study First Posted: 2023-03-27
• Last Update Posted: 2023-03-27

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

• Cases with V pattern strabismus with the age of the patients will be ≥3 years.

Exclusion Criteria

• • Structural ocular pathology
• Significant neurodevelopmental delay

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
v pattern exotropia	graded recession of inferior oblique muscle	v pattern exotropia patients with associated inferior oblique overreaction
Pattern esotropia	graded recession of inferior oblique muscle	v pattern esotropia patients with inferior oblique overreaction

Primary Outcome Measures

Name	Time	Method
orthotropia in primary position with no v pattern esotropia or exotropia.	6 month	by measuring the distant angle of strabismus in primary and upgaze less than 10prism dioptre.

Secondary Outcome Measures

Name	Time	Method
No Inferior oblique overaction	6 month	2.No hypertropia in adducted position.Graded recession of IO muscle depends on the amplitude of the V-pattern and degree of IOOA. Eight mm recession for amplitude 7.5 to 10 degree and mild IOOA (10 degreeor +1) ,10 mm recession for amplitude 11- 15 degree and moderate IOOA (11 -15 or +2) and maximum recession for amplitude more than 15 degree and marked IOOA ( 15 or +3). Simultaneous correction of the horizontal deviation was performed at the same sitting.

Trial Locations

Locations (1)

Faculty of medicine; 🇪🇬 Tanta, ELGharbia, Egypt