A Comparative Study Between Three Surgical Techniques in Large Angle Exotropia

Sohag University

Status: Not yet enrolling

Conditions: Exotropia Equal or More Than 50 Prism Diopter

Treatments: Procedure: Extropia squint surgery

Study type: Interventional

Funder types: Other

Identifiers

NCT07143032

Soh-Med-25-7-4MD

Details and patient eligibility

About

This is a randomized comparative interventional study that aims to compare the surgical outcomes of correcting large angle exotropia (≥50 prism diopter) by three different surgical techniques including: 1/ bilateral lateral rectus muscle recession with unilateral medial rectus muscle resection 2/bilateral medial rectus muscle resection, 3/unilateral medial rectus muscle resection with lateral rectus muscle transplantation,

Full description

This is a randomized comparative interventional study that will be conducted on patients with large angle exotropia before and after doing surgical correction using three different surgical techniques including : 1/ bilateral lateral rectus muscle recession with unilateral medial rectus muscle resection 2/bilateral medial rectus muscle resection, 3/unilateral medial rectus muscle resection with lateral rectus muscle transplantation ,to compare the surgical outcomes between them.

Enrollment: 60 estimated patients

Sex: All

Ages: 3 to 50 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients with large-angle exotropia (≥50 prism diopter).

Exclusion criteria

1. Patients with an exodeviation angle of less than 50 prism diopter.
2. History of previous strabismus surgery.
3. Restrictive or paretic strabismus or history of botulinum toxin injections for strabismus.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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60 participants in 3 patient groups

bilateral lateral rectus muscle recession with unilateral medial rectus muscle resection

Active Comparator group

Description:

patients with large angle exotropia treated by bilateral lateral rectus muscle recession with unilateral medial rectus muscle resection

Treatment:

Procedure: Extropia squint surgery

bilateral medial rectus muscle resection

Active Comparator group

Description:

patients with large angle exotropia treated by bilateral medial rectus muscle resection

Treatment:

Procedure: Extropia squint surgery

unilateral medial rectus muscle resection with lateral rectus muscle transplantation

Active Comparator group

Description:

patients with large angle exotropia treated by unilateral medial rectus muscle resection with lateral rectus muscle transplantation

Treatment:

Procedure: Extropia squint surgery