Simultaneous Surgical Correction of Vertical and Horizontal Deviations

Alvaro, Moacyr E.

doi:10.1159/000300892

Cited by 22 publications

(4 citation statements)

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“…Alvaro [1], correcting vertical deviations, observed that 1 mm of transplantation of the tendon corresponds approximately to 1°. Parks [26] also gives a guide to the quantity of surgery.…”

Section: Discussionmentioning

confidence: 99%

Ein Dosierungsvorschlag zur kombinierten Schieloperation des Strabismus Convergens — eine retrospektive Studie

Seher

Thaler

Schneider

et al. 1997

Spektrum Augeheilkd

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A retrospective study was performed in 177 esotropic patients, evaluating the long-term results after combined surgery. The up to now unpublished Holland-tables were applied for grading of recession/resection surgery. Analysis of the Holland-tables revealed a slight undercorrection in small angle squint and ideal results in large angle squint. In our hands an undercorrection in the large angle group appeared to be caused by too cautious applications of the Holland-tables.The Holland-tables proved to be a useful guide for quantification of surgery for convergent squint. Ein Dosierungsvorschlag zur kombinierten Schieloperation des Strabismus Convergens -eine retrospektive StudieZusammenfassung. Seit 1990 wird das Dosierungsschema nach Holland bei kombinierten Schieloperationen an unserer Abteilung eingesetzt. Unsere Ergebnisse werden anhand von 177 Patienten dargestellt.Die von uns angewandte Operationsmethode ergab bei kleinen Ausgangsschielwinkeln eine geringe Unterdosierung. Bei groBen Schielwinkeln wurde bewuit vorsichtig dosiert. Dies ergab in dieser Gruppe einen groBeren postoperativen Restwinkel.Die Dosierungsrichtlinien nach Holland bewahrten sich zur Quantifizierung der kombinierten Schieloperation bei Strabismus convergens.

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“…Alvaro [1], correcting vertical deviations, observed that 1 mm of transplantation of the tendon corresponds approximately to 1°. Parks [26] also gives a guide to the quantity of surgery.…”

Section: Discussionmentioning

confidence: 99%

Ein Dosierungsvorschlag zur kombinierten Schieloperation des Strabismus Convergens — eine retrospektive Studie

Seher

Thaler

Schneider

et al. 1997

Spektrum Augeheilkd

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“…75 the monocular field of each eye, and the authors refrained, therefore, from operating, so as not to interfere with the visual advantage which the exotropia gave this boy. Vision was 10/10 in each eye, the right eye requiring no correction and the left a correction of -0.…”

Section: Surgi Cal Treat Enmentioning

confidence: 99%

Strabismus

Burian¹

1951

Archives of Ophthalmology

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“…One option is to vertically transpose the medial and lateral rectus muscle of an eye in the same direction during a combined recession-resection or recession-plication surgery for horizontal strabismus. 1 The advantage over operating on a third extraocular muscle is a shorter surgery and -at least in theory -a smaller risk of intra-and postoperative complications.…”

Section: Introductionmentioning

confidence: 99%

“…Although there is some literature on the effect of horizontal rectus muscle vertical transposition to treat hypertropia, most studies were small and there is considerable variation regarding the effect of such transpositions. [1][2][3][4][5] Based on previous studies, [6][7][8] we expected an effect of 1 PD change in vertical alignment per mm vertical transposition of the horizontal recti in the same direction when planning the surgeries. In order to better define the effect of vertical transposition of the horizontal rectus muscles during unilateral eye muscle surgery for mainly horizontal strabismus, we analyzed our results with this approach.…”

Section: Introductionmentioning

confidence: 99%

Effect of unilateral vertical transposition of the horizontal rectus muscles on vertical strabismus

Rossel

Bergholz

Salchow

2020

European Journal of Ophthalmology

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Purpose: To study the effect of vertically transposing both horizontal eye muscles of one eye in the same direction on vertical strabismus. Methods: Retrospective analysis of 33 patients in whom vertical transposition of the medial and lateral rectus muscles was combined with a recession/resection or recession/plication procedure. Preoperative ocular alignment was compared with that 1 day and 3 months postoperatively. Results: Mean preoperative vertical deviation was 7.8 ± 4.3 (median 7.5, range 3–25) prism diopters (PD) at distance and 7.8 ± 4.1 (7, 0–18) PD at near. Vertical transposition of the horizontal rectus muscles averaged 5.6 ± 1.6 mm and reduced the vertical deviation to 3.4 ± 4.2 PD (2, 0–16) at distance and 2.9 ± 3.7 PD (2, 0–14) at near. Mean effect on the vertical deviation was 0.9 ± 0.7 (0.8, –0.8 to 2.13) PD/mm at distance and 0.9 ± 0.9 (0.83, –1 to 3) PD/mm at near, it was similar in patients operated on for esotropia and for exotropia. The surgical effect on the horizontal deviation was 2.1 ± 1.1 PD/mm (distance) and 2.6 ± 1 PD/mm (near). Both the vertical and horizontal surgical dose correlated with the effect in a linear way, but the variability was greater for the vertical transposition. Conclusions: Vertical transposition of the horizontal rectus muscles in the same direction allows for correction of vertical strabismus. This procedure may be performed during primarily horizontal strabismus surgery, without operating on an additional extraocular muscle. The transposition distance correlates with the surgical effect but predictability of the effect is limited.

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Simultaneous Surgical Correction of Vertical and Horizontal Deviations

Cited by 22 publications

References 0 publications

Ein Dosierungsvorschlag zur kombinierten Schieloperation des Strabismus Convergens — eine retrospektive Studie

Ein Dosierungsvorschlag zur kombinierten Schieloperation des Strabismus Convergens — eine retrospektive Studie

Strabismus

Effect of unilateral vertical transposition of the horizontal rectus muscles on vertical strabismus

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