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An orbital blowout fracture is a traumatic deformity of the orbital floor or medial wall that typically results from the impact of a blunt object larger than the orbital aperture, or eye socket. [1] Most commonly this results in a herniation of orbital contents through the orbital fractures. [ 1 ]
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The floor (inferior wall) is formed by the orbital surface of maxilla, the orbital surface of zygomatic bone and the minute orbital process of palatine bone. Medially, near the orbital margin, is located the groove for nasolacrimal duct. Near the middle of the floor, located infraorbital groove, which leads to the infraorbital foramen.
Two of its components are connections between the orbit and mid-face at the orbital medial wall and floor. Unlike an orbital blow out fracture, however, the orbital rim can be involved. The posterior vertical buttress is usually spared, and is more commonly involved in Lefort fractures.
Joel Embiid sustained a sinus fracture when he was struck in the face going for a defensive rebound late in the first half of the Philadelphia 76ers’ loss to the Indiana Pacers on Friday night.
Blowout fracture of the orbit is caused by blunt trauma, classically described for fist or ball injury, leading to fracture of the floor or medial wall of the orbit due to sudden increased pressure on the orbital contents. Muscular Entrapment Fracture of the orbital bones can lead to muscular entrapment limiting gaze in one direction.
The last muscle is the inferior oblique, which originates at the lower front of the nasal orbital wall, passes inferiorly over the inferior rectus muscle on its path laterally and posteriorly, and inserts under the lateral rectus muscle on the lateral, posterior part of the globe. Thus, the inferior oblique pulls the eye upward and laterally.
The FBI identified Shamsud Din Jabbar of Texas as the suspected truck driver who crashed into a New Year's Eve crowd at high speed in New Orleans.