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Strengthening the weak superior oblique muscle
1Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota.
Ophthalmic Surgery
|December 1, 1987
Summary
Tucking the superior oblique tendon strengthens eye muscles but causes Brown's syndrome. A modified Harada-Ito procedure advances the tendon, avoiding this complication and offering an easier surgical option.
Area of Science:
- Ophthalmology
- Strabismus Surgery
- Oculomotor Mechanics
Background:
- Superior oblique tendon tucking is a common strabismus surgery for strengthening.
- Postoperative Brown's syndrome is a frequent complication of superior oblique tendon tucking.
Purpose of the Study:
- To present a modified Harada-Ito procedure to avoid Brown's syndrome after superior oblique tendon surgery.
- To describe an alternative to standard superior oblique tendon tucking.
Main Methods:
- A modification of the Harada-Ito procedure was utilized.
- The entire superior oblique tendon was advanced anterolaterally.
- The tendon was advanced without disinsertion or resection.
Main Results:
- The modified procedure effectively avoids transient postoperative Brown's syndrome.
- The surgical technique is straightforward to perform.
Conclusions:
- Advancing the superior oblique tendon using the modified Harada-Ito technique is a viable alternative to tucking.
- This method prevents the common complication of Brown's syndrome.
- The procedure's simplicity and potential for adjustable sutures enhance its utility.