Related Experiment Video
Updated: Jul 10, 2026
05:25
Knotless Independent Double-Row Repair and Biceps Augmentation for Anterosuperior Rotator Cuff Tears
Published on: January 23, 2026
Superior oblique anterior tenectomy
Alejandra Roizen1, Federico G Velez, Arthur L Rosenbaum
1Division of Pediatric Ophthalmology and Strabismus, Department of Ophthalmology, Jules Stein Eye Institute, UCLA, Los Angeles, California, USA.
Summary
Anterior tenectomy of the superior oblique muscle effectively reduces incyclotorsion in patients. This surgical approach for torsional strabismus showed significant improvement, with minimal risk of complications.
Area of Science:
- Ophthalmology
- Strabismus Surgery
- Oculomotor Muscle Physiology
Background:
- Incyclotorsion, a form of torsional strabismus, can cause significant visual disturbances like diplopia.
- The superior oblique muscle plays a crucial role in eye movement, including torsion.
Purpose of the Study:
- To detail a surgical technique for weakening the anterior cyclotorsional fibers of the superior oblique muscle.
- To evaluate the efficacy of this approach in patients diagnosed with incyclotorsion.
Main Methods:
- Retrospective analysis of five patients with diplopia and incyclotorsion.
- Unilateral tenectomy of the anterior superior oblique fibers, with or without concurrent rectus muscle surgery.
Main Results:
- Preoperative mean incyclotorsion of 7.2 degrees was reduced to a mean of 2 degrees postoperatively.
- The procedure corrected an average of 5.2 degrees of incyclotorsion.
- No induced vertical deviations or excyclotorsion-related diplopia were observed.
Conclusions:
- Anterior tenectomy of the superior oblique tendon is a potentially beneficial surgical option for incyclotorsion.
- This technique is particularly suitable for patients without primary vertical deviation or those at risk of specific complications.
- It offers a targeted approach to managing incyclotorsion without compromising other ocular functions.
