ArticleAmerican journal of ophthalmology2017
One- Versus Two-Muscle Surgery for Presumed Unilateral Fourth Nerve Palsy Associated With Moderate Angle Hyperdeviations.
Article in American journal of ophthalmology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed, 14 citations in OpenAlex.
- Types of Surgery Performed and Reoperation Rate for Congenital Superior Oblique Palsy: a Claims Database Study.Acta ophthalmologica · 2022Article
- Recurrent Superior Oblique Myokymia Treated by Distal Tendon Extirpation.Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society · 2019Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
Abstract
purposeTo compare 1-muscle vs 2-muscle surgery for moderate-angle hyperdeviations owing to presumed unilateral fourth nerve palsy.
designRetrospective chart review.
methodsSeventy-three patients (aged 5-86 years) underwent either 1- or 2-muscle surgery at our institution for moderate hyperdeviation owing to presumed unilateral fourth nerve palsy, measuring 14-25 prism diopters (PD) in straight-ahead gaze at distance fixation. Six-week and 1-year motor success was defined as zero vertical deviation or 1-4 PD undercorrection at distance, overcorrection as any reversal of hypertropia, and undercorrection as >4 PD. Diplopia success was defined as no diplopia, or only rarely for distance straight ahead and reading.
resultsTwenty-eight patients underwent 1-muscle surgery, and 45 patients underwent 2-muscle surgery. Motor success was similar (64% vs 67%, P > .99 at 6 weeks; 47% vs 55%, P = .8 at 1 year, n = 46), but there were more undercorrections at 6 weeks with 1-muscle surgery (36% vs 16%, P = .09) and more overcorrections at 6 weeks with 2-muscle surgery (0% vs 18%, P = .02). Diplopia success was also somewhat similar between 1- and 2-muscle surgery at 6 weeks (73% vs 60%, P = .5) and 1 year (45% vs 59%, P = .5).
conclusionFor moderate-angle hyperdeviations owing to presumed unilateral fourth nerve palsy, there appears no clear advantage of 2-muscle surgery for motor outcomes. Diplopia success was similar between 1- and 2-muscle surgery, owing to a greater number of less symptomatic undercorrections with 1-muscle surgery and a smaller number of more symptomatic overcorrections with 2-muscle surgery.
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