title: Blow-in fracture of the orbit.
abstract: We report 2 patients with blow-in fractures of the orbital floor caused by different mechanisms. In a 17-year-old boy, a sudden impact was given to the anterior maxillary wall and caused a depression fracture of a maxilla, yet the infraorbital rim remained intact. We think fragments of the orbital floor were forced into the orbit by a sudden increase in pressure in the maxillary sinus in this patient. In a 51-year-old man, the impact of a force was on the laterosuperior part of the zygoma, which pushed the zygoma medially. These 2 cases represent 2 different mechanisms of blow-in fractures of the orbital floor.
authors.affiliation: From the *Department of Plastic Surgery and the Center for Advanced Medical Education by the BK21 Project; and Departments of †Plastic Surgery and ‡Anesthesia, Inha University School of Medicine, Incheon, Korea.
authors.forename: Kun
authors.initials: K
authors.lastname: Hwang
authors.forename: Han Joon
authors.initials: HJ
authors.lastname: Kim
authors.forename: Hong Sik
authors.initials: HS
authors.lastname: Lee
mesh_terms: D000058:Accidental Falls; D000293:Adolescent; D001484:Baseball / Q000293:injuries; D006801:Humans; D008297:Male; D008875:Middle Aged; D009917:Orbital Fractures / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery*; D014057:Tomography, X-Ray Computed