Document Detail

Effect of 10-mm superior oblique posterior tenectomy combined with frenulum dissection in A-pattern with superior oblique overaction.
MedLine Citation:
PMID:  19665106     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To evaluate the effect of 10-mm tenectomy of the posterior fibers of the superior oblique (SO) tendon combined with dissection of the frenulum for correction of A-pattern deviation and vertical deviation with SO overaction. DESIGN: Retrospective, interventional case series. METHODS: Seventy-five patients with A-pattern strabismus associated with SO overaction who underwent surgery between March 1, 2004 and August 31, 2007. Retrospective analysis of A-pattern strabismus patients with SO overaction who underwent unilateral or bilateral 10-mm SO posterior tenectomy combined with frenulum dissection and who underwent at least 12 months of follow-up. RESULTS: The mean preoperative amount of A-pattern for all patients was 21.20 +/- 7.25 prism diopters (PD), with a mean postoperative collapse of 17.63 +/- 5.33 PD (range, 10 to 30 PD), which was statistically significant (P = .001). After surgery, the mean A-pattern correction was 22.12 +/- 6.30 PD in the group that underwent bilateral posterior tenectomy and 13.33 +/- 5.20 PD in the group that underwent unilateral posterior tenectomy. The mean degree of preoperative vertical deviation in the group that underwent unilateral posterior tenectomy was 11.50 +/- 3.96 PD, and the mean correction was 9.21 +/- 4.22 PD (P = .01). There were no surgical complications, except in 5 patients, who manifested mild inferior oblique overaction. CONCLUSIONS: We believe that 10-mm SO posterior tenectomy combined with frenulum dissection effectively collapses A-pattern deviation of less than 25 PD with mild to moderate SO overaction and reduces associated vertical deviation of 10 PD.
Hwan Heo; Kwang Hoon Lee; Jae Kyoun Ahn; Dae Hyun Kim; Yeoung Geol Park; Sang Woo Park
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Publication Detail:
Type:  Journal Article     Date:  2009-08-07
Journal Detail:
Title:  American journal of ophthalmology     Volume:  148     ISSN:  1879-1891     ISO Abbreviation:  Am. J. Ophthalmol.     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-11-02     Completed Date:  2009-11-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370500     Medline TA:  Am J Ophthalmol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  794-9     Citation Subset:  AIM; IM    
Department of Ophthalmology, Chonnam National University Medical School & Hospital, Gwangju, South Korea.
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MeSH Terms
Child, Preschool
Eye Movements / physiology
Oculomotor Muscles / physiopathology,  surgery*
Ophthalmologic Surgical Procedures*
Refraction, Ocular / physiology
Retrospective Studies
Strabismus / physiopathology,  surgery*
Tendons / surgery*
Vision, Binocular / physiology
Visual Acuity / physiology
Young Adult

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