Localizing the Lost Rectus Muscle Using the Connective Tissue Framework: Revisiting the Tunnel Technique.

Area of Science:

• Ophthalmology
• Ophthalmic Surgery

Background:

• Lost rectus muscles can occur during strabismus or retinal surgery, or due to ocular/orbital trauma.
• Accurate localization and reattachment are crucial for restoring ocular motility and function.

Purpose of the Study:

• To describe a simple and effective technique for localizing a lost rectus muscle.
• To facilitate successful reattachment of the rectus muscle during ophthalmic procedures or after trauma.

Main Methods:

• Retrospective chart review of 5 patients with lost rectus muscles (3 from strabismus surgery, 2 post-trauma).
• Inclusion criteria: lost rectus muscle during strabismus surgery or disinserted/lacerated muscle post-trauma.
• Primary outcome: successful reattachment of the rectus muscle.

Main Results:

• The described technique successfully identified and reattached the lost rectus muscle in all 5 patients.
• Gentle traction on the conjunctiva/Tenon edge guided the muscle through its Tenon capsule tunnel.
• No complications were reported, and orbital fat did not obscure the surgical field.

Conclusions:

• A simple and effective method for localizing lost rectus muscles has been demonstrated.
• The technique relies on understanding the orbital connective tissue framework.
• This approach offers a reliable solution for managing lost rectus muscles in ophthalmic surgery and trauma cases.