Effect of vertical transposition of the medial rectus muscle on primary position alignment in infantile esotropia with A- or V-pattern strabismus

Anna Dickmann, Sergio Petroni, Annabella Salerni, Rosa Parrilla, Gustavo Savino, Remo Battendieri, Vittoria Perrotta, Cecilia Radini, Emilio Balestrazzi

Research output: Contribution to journalArticle

Abstract

Purpose: To determine the effect of vertical displacement of muscle insertions on the surgical dose-response relationship in patients undergoing bilateral medial rectus recessions. Methods: Retrospective chart review of patients undergoing bilateral medial rectus recessions for correction of congenital esotropia with or without vertical displacement for A or V patterns. Patients were clustered into A pattern, V pattern, and "simple" (no pattern) groups. Strabismus angle at distance and near before and after surgery was recorded. Surgical dose-response relationships (in prism diopters/mm) were determined at the 6-month follow-up visit and compared. Results: A total of 55 patients (28 male and 27 female patients; mean age, 6.9 years; range, 2-17 years) were included. Of these, 28 had either A pattern (18) or V pattern (10), and 27 were in the simple group. Mean preoperative angle of deviation was 34 Δ at distance and 40 Δ at near. The surgical dose-response relationship was significantly greater (at both distance and near) in the A pattern group (2.43 Δ/mm, distance [p = 0.005]; 2.76 Δ/mm, near [p = 0.04]) than in the simple group (1.56 Δ/mm, distance; 2.03 Δ/mm, near). The surgical response in the V pattern group (1.96 Δ/mm, distance [p = 0.34]; 2.03 Δ/mm, near [p = 0.94]) was not significantly different from the simple group. Conclusions: Upward displacement of the medial rectus muscles increased the surgical dose/response relationship in patients with A-pattern esotropia. A similar effect was not observed with downward displacement in patients with V-pattern strabismus. Surgeons should be aware of this enhanced response when planning surgery for A-pattern esotropia.

Original languageEnglish
Pages (from-to)14-16
Number of pages3
JournalJournal of AAPOS
Volume15
Issue number1
DOIs
Publication statusPublished - Feb 2011

Fingerprint

Esotropia
Strabismus
Muscles

ASJC Scopus subject areas

  • Ophthalmology
  • Pediatrics, Perinatology, and Child Health

Cite this

Effect of vertical transposition of the medial rectus muscle on primary position alignment in infantile esotropia with A- or V-pattern strabismus. / Dickmann, Anna; Petroni, Sergio; Salerni, Annabella; Parrilla, Rosa; Savino, Gustavo; Battendieri, Remo; Perrotta, Vittoria; Radini, Cecilia; Balestrazzi, Emilio.

In: Journal of AAPOS, Vol. 15, No. 1, 02.2011, p. 14-16.

Research output: Contribution to journalArticle

Dickmann, Anna ; Petroni, Sergio ; Salerni, Annabella ; Parrilla, Rosa ; Savino, Gustavo ; Battendieri, Remo ; Perrotta, Vittoria ; Radini, Cecilia ; Balestrazzi, Emilio. / Effect of vertical transposition of the medial rectus muscle on primary position alignment in infantile esotropia with A- or V-pattern strabismus. In: Journal of AAPOS. 2011 ; Vol. 15, No. 1. pp. 14-16.
@article{e39bdbafb0f4492d8b164d7ceefbc1b8,
title = "Effect of vertical transposition of the medial rectus muscle on primary position alignment in infantile esotropia with A- or V-pattern strabismus",
abstract = "Purpose: To determine the effect of vertical displacement of muscle insertions on the surgical dose-response relationship in patients undergoing bilateral medial rectus recessions. Methods: Retrospective chart review of patients undergoing bilateral medial rectus recessions for correction of congenital esotropia with or without vertical displacement for A or V patterns. Patients were clustered into A pattern, V pattern, and {"}simple{"} (no pattern) groups. Strabismus angle at distance and near before and after surgery was recorded. Surgical dose-response relationships (in prism diopters/mm) were determined at the 6-month follow-up visit and compared. Results: A total of 55 patients (28 male and 27 female patients; mean age, 6.9 years; range, 2-17 years) were included. Of these, 28 had either A pattern (18) or V pattern (10), and 27 were in the simple group. Mean preoperative angle of deviation was 34 Δ at distance and 40 Δ at near. The surgical dose-response relationship was significantly greater (at both distance and near) in the A pattern group (2.43 Δ/mm, distance [p = 0.005]; 2.76 Δ/mm, near [p = 0.04]) than in the simple group (1.56 Δ/mm, distance; 2.03 Δ/mm, near). The surgical response in the V pattern group (1.96 Δ/mm, distance [p = 0.34]; 2.03 Δ/mm, near [p = 0.94]) was not significantly different from the simple group. Conclusions: Upward displacement of the medial rectus muscles increased the surgical dose/response relationship in patients with A-pattern esotropia. A similar effect was not observed with downward displacement in patients with V-pattern strabismus. Surgeons should be aware of this enhanced response when planning surgery for A-pattern esotropia.",
author = "Anna Dickmann and Sergio Petroni and Annabella Salerni and Rosa Parrilla and Gustavo Savino and Remo Battendieri and Vittoria Perrotta and Cecilia Radini and Emilio Balestrazzi",
year = "2011",
month = "2",
doi = "10.1016/j.jaapos.2010.11.017",
language = "English",
volume = "15",
pages = "14--16",
journal = "Journal of AAPOS",
issn = "1091-8531",
publisher = "Mosby Inc.",
number = "1",

}

TY - JOUR

T1 - Effect of vertical transposition of the medial rectus muscle on primary position alignment in infantile esotropia with A- or V-pattern strabismus

AU - Dickmann, Anna

AU - Petroni, Sergio

AU - Salerni, Annabella

AU - Parrilla, Rosa

AU - Savino, Gustavo

AU - Battendieri, Remo

AU - Perrotta, Vittoria

AU - Radini, Cecilia

AU - Balestrazzi, Emilio

PY - 2011/2

Y1 - 2011/2

N2 - Purpose: To determine the effect of vertical displacement of muscle insertions on the surgical dose-response relationship in patients undergoing bilateral medial rectus recessions. Methods: Retrospective chart review of patients undergoing bilateral medial rectus recessions for correction of congenital esotropia with or without vertical displacement for A or V patterns. Patients were clustered into A pattern, V pattern, and "simple" (no pattern) groups. Strabismus angle at distance and near before and after surgery was recorded. Surgical dose-response relationships (in prism diopters/mm) were determined at the 6-month follow-up visit and compared. Results: A total of 55 patients (28 male and 27 female patients; mean age, 6.9 years; range, 2-17 years) were included. Of these, 28 had either A pattern (18) or V pattern (10), and 27 were in the simple group. Mean preoperative angle of deviation was 34 Δ at distance and 40 Δ at near. The surgical dose-response relationship was significantly greater (at both distance and near) in the A pattern group (2.43 Δ/mm, distance [p = 0.005]; 2.76 Δ/mm, near [p = 0.04]) than in the simple group (1.56 Δ/mm, distance; 2.03 Δ/mm, near). The surgical response in the V pattern group (1.96 Δ/mm, distance [p = 0.34]; 2.03 Δ/mm, near [p = 0.94]) was not significantly different from the simple group. Conclusions: Upward displacement of the medial rectus muscles increased the surgical dose/response relationship in patients with A-pattern esotropia. A similar effect was not observed with downward displacement in patients with V-pattern strabismus. Surgeons should be aware of this enhanced response when planning surgery for A-pattern esotropia.

AB - Purpose: To determine the effect of vertical displacement of muscle insertions on the surgical dose-response relationship in patients undergoing bilateral medial rectus recessions. Methods: Retrospective chart review of patients undergoing bilateral medial rectus recessions for correction of congenital esotropia with or without vertical displacement for A or V patterns. Patients were clustered into A pattern, V pattern, and "simple" (no pattern) groups. Strabismus angle at distance and near before and after surgery was recorded. Surgical dose-response relationships (in prism diopters/mm) were determined at the 6-month follow-up visit and compared. Results: A total of 55 patients (28 male and 27 female patients; mean age, 6.9 years; range, 2-17 years) were included. Of these, 28 had either A pattern (18) or V pattern (10), and 27 were in the simple group. Mean preoperative angle of deviation was 34 Δ at distance and 40 Δ at near. The surgical dose-response relationship was significantly greater (at both distance and near) in the A pattern group (2.43 Δ/mm, distance [p = 0.005]; 2.76 Δ/mm, near [p = 0.04]) than in the simple group (1.56 Δ/mm, distance; 2.03 Δ/mm, near). The surgical response in the V pattern group (1.96 Δ/mm, distance [p = 0.34]; 2.03 Δ/mm, near [p = 0.94]) was not significantly different from the simple group. Conclusions: Upward displacement of the medial rectus muscles increased the surgical dose/response relationship in patients with A-pattern esotropia. A similar effect was not observed with downward displacement in patients with V-pattern strabismus. Surgeons should be aware of this enhanced response when planning surgery for A-pattern esotropia.

UR - http://www.scopus.com/inward/record.url?scp=79952645887&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79952645887&partnerID=8YFLogxK

U2 - 10.1016/j.jaapos.2010.11.017

DO - 10.1016/j.jaapos.2010.11.017

M3 - Article

C2 - 21397800

AN - SCOPUS:79952645887

VL - 15

SP - 14

EP - 16

JO - Journal of AAPOS

JF - Journal of AAPOS

SN - 1091-8531

IS - 1

ER -