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Updated: May 7, 2026

Three-Dimensional Reconstruction of Orbital Fractures
Published on: May 16, 2025
Blow-in fracture of the orbit
Kun Hwang1, Han Joon Kim, Hong Sik Lee
1From 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.
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.
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