title: Sino-orbital fistula: two case reports.
abstract: A fistula between the paranasal sinuses and the orbit as a late complication of orbital fractures is rare and may present with intermittent symptoms due to air passing into the orbit. A case note review of two patients with sino-orbital fistula is presented. Two patients, 23- and 30-year-old males, presented with intermittent symptoms of globe displacement, diplopia or discomfort months after repair of an orbital floor fracture with a synthetic orbital floor implant. The symptoms occurred after nose blowing. They were both cured by removal of the implant and partial removal of the tissue surrounding the implant. A sino-orbital fistula may complicate the otherwise routine repair of an orbital floor fracture, but may be cured by removal of the implant and part of the surrounding pseudocapsule.
authors.affiliation: Orbital Plastic and Lacrimal Clinic, Royal Victorian Eye and Ear Hospital, Melbourne, Australia. amcnab@medeserv.com.au
authors.forename: A A
authors.initials: AA
authors.lastname: McNab
mesh_terms: D000328:Adult; D004172:Diplopia / Q000175:diagnosis / Q000209:etiology; D005402:Fistula / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008297:Male; D009757:Nylons / Q000009:adverse effects; D009916:Orbital Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D009917:Orbital Fractures / Q000601:surgery*; D010254:Paranasal Sinus Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D019736:Prostheses and Implants / Q000009:adverse effects*; D012086:Reoperation; D012826:Silicone Elastomers / Q000009:adverse effects; D014057:Tomography, X-Ray Computed; D014792:Visual Acuity
chemical_list: D009757:Nylons; D012826:Silicone Elastomers