ORIGINAL RESEARCH article
Front. Med.
Sec. Ophthalmology
Volume 12 - 2025 | doi: 10.3389/fmed.2025.1571642
A Modified Swan Incision Combined with Lateral Rectus Suspension for Exotropia: A Retrospective Cohort Study Demonstrating Shorter Operative Time and Faster Recovery
Provisionally accepted
- 1Department of Ophthalmology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- 2Dalian No.3 People's Hospital, Dalian, Liaoning Province, China
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Background: A modified Swan incision (MSI) combined with lateral rectus muscle suspension surgery represents an innovative strabismus surgical technique developed by our research team. Compared to the conventional Swan incision, the MSI features a 50% reduction in length with more posterior placement. The suspension technique is a modified recession approach that corrects strabismus by creating a hammock-like structure to reposition the muscle at new insertion site, rather than directly suturing the muscle to the sclera. This study aims to evaluate the safety, efficacy, and potential advantages of this MSI technique for exotropia. Methods: A retrospective cohort study was conducted on 66 patients with exotropia treated from January 2024 to December 2024. The patients were divided into two groups based on actual surgical procedures: the MSI group (33 patients, 42 eyes) and the control group (33 patients, 36 eyes). The MSI group underwent the MSI technique, while the control group underwent traditional Parks incision combined with lateral rectus recession. The surgical time, postoperative recovery, and correction outcomes were compared between the two groups. This is a provisional file, not the final typeset article Results: The MSI group showed significantly shorter surgical time (P<0.0001) and lower redness score at 1 week postoperatively (P<0.001), with comparable surgical success rate to control group (P>0.9999). Conclusion: The MSI combined with lateral rectus suspension surgery demonstrates both efficacy in ocular alignment correction and favorable safety in surgery. This technique significantly shortens surgical time, reduces tissue damage, improves postoperative recovery, making it a valuable option for widespread application.
Keywords: exotropia1, modified Swan incision2, suspension3, inflammation4, strabismus surgery5
Received: 11 Feb 2025; Accepted: 01 Sep 2025.
Copyright: © 2025 Liu, Guo, Shen, Jiang, Chu, Wu and Hu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Kai Hu, Department of Ophthalmology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
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