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  • Title: Ocular motility complications after endoscopic sinus surgery with powered cutting instruments.
    Author: Bhatti MT, Giannoni CM, Raynor E, Monshizadeh R, Levine LM.
    Journal: Otolaryngol Head Neck Surg; 2001 Nov; 125(5):501-9. PubMed ID: 11700450.
    Abstract:
    OBJECTIVE: The purpose of this study was to describe 2 unique cases of ocular motility dysfunction after powered endoscopic sinus surgery and identify potential risk factors for extraocular muscle injury. STUDY DESIGN: Interventional case series. RESULTS: Patient 1 developed a restrictive global ophthalmoplegia after inadvertent entry into the medial orbit during powered endoscopic sinus surgery. Patient 2 had complete loss of adduction of the left eye as a result of transection of the medial rectus muscle by a powered cutting instrument. CONCLUSIONS: Despite advances in endoscopic sinus surgery technique and instrumentation, serious ophthalmic complications may still occur. Inadvertent entry into the medial orbital wall can result in ocular motility complications. Furthermore, it is possible that attraction of orbital contents into the tip of a powered cutting instrument may occur without significant entry into the orbital cavity. SIGNIFICANCE: It is important for endoscopic sinus surgeons to be aware of the intimate anatomical relationship between the orbit and sinuses, as well as the potential risks of the current instruments used in endoscopic sinus surgery.
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