Journal of Yeungnam Medical Science

Case Report

Injury of the Medial Rectus Muscle by Using a Microdebrider During Endoscopic Sinus Surgery : A Case Report.: Yoon Seok Choi, Chang Hoon Bai, Si Youn Song, Yong Dae Kim; Yeungnam Univ J Med. 2006;23(2):240-246. Published online December 31, 2006; DOI: https://doi.org/10.12701/yujm.2006.23.2.240

Abstract PDF: A microdebrider is increasingly used in endoscopic sinus surgery. Although it has many advantages over conventional instruments, it has been associated with severe complications. We treated a case of rupture of the left medial rectus muscle after use of a microdebrider during endoscopic sinus surgery in a 50 year-old female patient who complained of binocular diplopia and exotropia. The patient showed marked limitation on adduction and about 40 prism diopters of left exodeviation. The orbital computed tomography showed a bony defect at the left medial orbital wall, and injury of the medial rectus muscle. The exodeviation was corrected after ophthalmologic surgery. We report a case of the rupture of the medial rectus muscle after use of a microdebrider during endoscopic sinus surgery and review the medical literature.

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