Journal of the Korean Association of Oral and Maxillofacial Surgeons
- P-ISSN2234-7550
- E-ISSN2234-5930
- SCOPUS, KCI, ESCI
ISSN : 2234-7550
Feasibility of navigation-assisted endoscopic transnasal optic nerve decompression for the treatment of traumatic optic neuropathy in patients with midfacial fractures
Sakamoto Tatsunori (Department of Otorhinolaryngology-Head and Neck Surgery, Shimane University Faculty of Medicine, Izumo, Japan)
Morikura Ichiro (Department of Otorhinolaryngology-Head and Neck Surgery, Shimane University Faculty of Medicine, Izumo, Japan)
Okui Tatsuo (Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, JapanDepartment of Maxillofacial Diagnostic and Surgical Science, Kagoshima University, Kagoshima, Japan)
Ayasaka Kentaro (Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, Japan)
Okuma Satoe (Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, Japan)
Tatsumi Hiroto (Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, Japan)
Kanno Takahiro (Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, Japan)
Abstract
Objectives: Traumatic optic neuropathy (TON), a relatively rare condition, can cause visual functional impairment and permanent functional damage. Surgeons should be familiar with its diagnostic criteria and treatment to effectively manage cases of facial trauma with TON. We investigated the feasibility of navigation-assisted endoscopic trans-nasal optic nerve decompression (ETOND) to treat TON in maxillofacial trauma patients. Patients and Methods: We retrospectively analyzed data from the clinical investigation of four consecutive patients, two males and two females with an average age of 75 years, with midfacial fractures and TON between April 2021 and September 2023. All patients had swelling and subcutaneous periorbital hemorrhage accompanied by optic nerve canal and zygomaticomaxillary complex fractures on the affected side. Three patients had lacerations on the lateral eyebrow or upper eyelid. All patients were evaluated by an ophthalmologist for visual impairment; two patients could see hand motion at a 30 cm distance, one patient could perceive light, and one did not have any loss of visual acuity. Among the four patients, three had visual impairment immediately after the injury, and one showed delayed impairment. Results: The patients were treated with navigation-assisted ETOND conducted by an endoscopic rhinologist. Three of the ETONDs were performed along with open reduction and internal fixation (ORIF); the other ETOND was delayed. Orbital reconstruction was performed in three patients. Steroid therapy was administered to two patients, one pre-operatively and one post-operatively. The two patients with pre-operative vision loss showed improved visual acuity post-operatively, and the two patients with no pre-operative visual impairment had no vision loss associated with ORIF for their midfacial fractures. No patient had post-operative complications. Conclusion: Navigation-assisted ETOND can be performed easily by endoscopic rhinologists; and prompt examination, diagnosis, and treatment are important in patients with facial trauma and TON.
- keywords
- Traumatic optic neuropathy, Optic nerve canal fracture, Midfacial fracture, Navigation-assisted endoscopic trans-nasal optic nerve decompression
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