Long Term Effect of Muscle Transplantation in Large Angle Esotropia and Exotropia | ||
| SVU-International Journal of Medical Sciences | ||
| Volume 6, Issue 2, July 2023, Pages 863-879 PDF (1.61 M) | ||
| Document Type: Original research articles | ||
| DOI: 10.21608/svuijm.2023.234530.1697 | ||
| Authors | ||
| Doaa Abody Ahmed Mohamed* 1; Ahmed Mostafa Eid2; Sahar Torky Abdelrzik Abdelaziz2; Ahmed Hassan Aldghaimy1 | ||
| 1Ophthalmology Department, Faculty of Medicine, South Valley University, Qena, Egypt | ||
| 2Ophthalmology Department, Faculty of Medicine, Minia University, Minia, Egypt | ||
| Abstract | ||
| Background: In cases of large-angle horizontal strabismus, standard two-horizontal muscle surgery is insufficient. Utilizing supramaximal recession and resection techniques would result in limited duction. True muscle transplantations have been explored in this scenario as a potential solution for this large angle deviation. Objectives: to evaluate the long-term effects of muscle transplantation on patients with large-angle horizontal strabismus, assessing success rate, ocular alignment improvement, and patient satisfaction post-surgery. Patients and methods: This prospective case series with 30 cases, divided into Group A (large-angle esotropia) and Group B (large-angle exotropia). The surgical procedure involved muscle transplantation using a recession technique. Preoperative evaluations, including comprehensive ophthalmic examinations, were conducted to determine the angle of deviation, visual acuity, and ocular motility. The participants underwent follow-up visits post-surgery. Results: In Group A, the mean preoperative distance angle of deviation, measured in prism diopters (PD), was 80.67±11.63. The mean preoperative adduction and abduction restriction was -0.07±0.26, -0.73±0.96, respectively. The amount of lateral rectus (LR) resection, and medial rectus (MR) recession ranged from 6 to 9 mm, and 2 to 5 mm, respectively. In Group B, the mean preoperative distance angle of deviation, measured in prism diopters (PD), was 75.67±13.61. The mean preoperative adduction and abduction restriction was -1.47±1.36, - 0.53±0.74, respectively. The amount of medial rectus (MR) resection, and lateral rectus (LR) recession ranged from 6 to 8 mm, and 3 to 10 mm, respectively. Conclusion: Muscle transplantation is an effective surgical technique for large angle horizontal strabismus. It leads to significant improvements in ocular alignment and movement restrictions. | ||
| Keywords | ||
| Large angle strabismus; Autograft; Muscle transplantation | ||
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