If the address matches an existing account you will receive an email with instructions to reset your password. To benefit all the functionalities of IMAIOS, we advise to keep the activation of all categories of cookies. (b) Axial thick-slab CT image shows malar retrusion from internal rotation of the right ZMC about the fractured zygomaticomaxillary buttress (thick open arrow) and zygomaticotemporal suture (thin solid arrow). fist, forehead, dashboard, etc.).

In the upper midface, a type B fracture of the left zygoma (thick white arrow) and bilateral grade 1 NOE fractures (thick black arrow) are depicted.

The upper midfacial (NOE and ZMC) fractures were reconnected to the lower midfacial segment with a nasomaxillary buttress plate on the right side (1) and bilateral zygomaticomaxillary buttress plates (4, 5) as the last step of the fixation. Figure 25a.

Untreated frontonasal duct obstructions result in mucopyoceles in up to 50% of patients (29,36), which can cause expansile bone remodeling (Fig 16), osteomyelitis, hardware infection, meningitis, and brain abscesses (29,37). Anatomy figure: 22:02-07 at Human Anatomy Online, SUNY Downstate Medical Center—"Anterior view of skull. Diagnosis of an NOE fracture requires identification of at least four of the five cardinal tracts to distinguish NOE fractures from other fracture patterns involving the maxilla and orbits. The orbital floor is also typically fractured, which leads some surgeons to refer to ZMC fractures as “orbitozygomatic” fractures.


(b) Fractures at the right Le Fort 3, left Le Fort 2, and bilateral Le Fort 1 levels in a 48-year-old man after an assault.

The patient initially presented with painful restricted lateral gaze, which gradually resolved.

3, Nasal cavity.

Image 5. If additional stability is required, the inferior orbital rim is used as a third point of fixation.

Enophthalmos.—In orbital blow-out fractures, the bony orbital volume expands as a result of outfracture of the walls and is initially matched by volume expansion from hemorrhage and edema of the internal orbital contents, masking all but the most severe cases of enophthalmos (Fig 23). Figure 21. In comparison, 12.8% of the group (107 persons) had epidemiologically based CRS, as determined using the European Position Paper on Rhinosinusitis and Nasal Polyps (EPOS) symptom criteria, with 50% of this group having a Lund-Mackay score of 0. Figure 7b.
Sagittal CT image shows a Le Fort 1 maxillary occlusion-bearing segment fracture with a paramedian palatal fracture, resulting in buccal splaying of the hemi–Le Fort segments (arrows). Right ZMC fracture in a 23-year-old man after a motor vehicle collision. It expands the tip and may compromise the EI and semilunar hiatus.

2 October 2020 | RadioGraphics, Vol. 2, Maxillary sinus. Figure 24. Figure 37b. 3, Inferior nasal concha. Disruption of the medial canthal tendon results in shortening and blunting of the palpebral fissure (the space between the upper and lower lids).

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