title: Accident entry of titanium screw into the sphenoid sinus during paranasal augmentation with porous polyethylene implant.
abstract: We report a rare case of accident entry of titanium screw into the sphenoid sinus during paranasal augmentation with porous polyethylene implant. The screw was finally retrieved from the sphenoid sinus by a nasal endoscope. We emphasize that, on this surgery region, the simple fixation skill must be performed delicately. Otherwise, an adverse event may still happen.
authors.affiliation: Department of Maxillofacial Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
authors.forename: Xiao-Jun
authors.initials: XJ
authors.lastname: Tang
authors.forename: Zhi-Yong
authors.initials: ZY
authors.lastname: Zhang
authors.forename: Lei
authors.initials: L
authors.lastname: Shi
authors.forename: Hong-Yu
authors.initials: HY
authors.lastname: Yin
authors.forename: Lin
authors.initials: L
authors.lastname: Yin
mesh_terms: D001863:Bone Screws; D004724:Endoscopy; D005260:Female; D005547:Foreign Bodies / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D020959:Polyethylene; D016062:Porosity; D019736:Prostheses and Implants; D011859:Radiography; D013101:Sphenoid Sinus / Q000000981:diagnostic imaging / Q000293:injuries* / Q000601:surgery*; D014025:Titanium; D014950:Wounds, Penetrating / Q000000981:diagnostic imaging / Q000601:surgery*; D055815:Young Adult
chemical_list: D020959:Polyethylene; D014025:Titanium