What is closed fracture of zygomatic arch?
Fractures of the ZMC or zygomatic arch can often lead to unsightly malar depression, which should be corrected to restore a normal facial contour. ZMC fractures can also cause significant functional issues, including trismus, enophthalmos and/or diplopia, and paresthesias of the infraorbital nerve.
What is left zygomatic arch?
In anatomy, the zygomatic arch, or cheek bone, is a part of the skull formed by the zygomatic process of the temporal bone (a bone extending forward from the side of the skull, over the opening of the ear) and the temporal process of the zygomatic bone (the side of the cheekbone), the two being united by an oblique …
How do you fix zygomatic arch?
Most zygomatic complex fractures can be treated solely by an intraoral approach and rigid fixation at the zygomaticomaxillary buttress. Further exposure of the zygomaticofrontal junction or inferior orbital rim is necessary for severely displaced fractures, which require additional fixation.
What is the zygomatic fracture?
A zygomatic complex fracture is a fracture that involves the zygoma and its surrounding bones. The typical lines of a zygomatic complex fracture are: A fracture emanating from the inferior orbital fissure superiorly along the sphenozygomatic suture to the frontozygomatic suture where it crosses the lateral orbital rim.
What is tympanic plate?
The tympanic plate is a small part of the temporal bone that separates the mandibular condyle from the external auditory canal. Fracture of this small plate is rare and usually associated with other bony fractures, mainly temporal and mandibular bone.
Is the zygomatic arch the same as the zygomatic process?
Zygomatic Arch Definition The zygomatic arch is formed from parts of both the zygomatic bone and the temporal bone. The extension of the temporal bone is known specifically as the zygomatic process, and attaches directly to the similarly shaped process on the zygomatic bone.
What forms zygomatic arch?
• The cranial portion of the zygomatic arch is formed by the zygomatic bone, and the caudal portion is formed by the zygomatic process of the temporal bone. • The zygomatic arch forms the ventral and lateral rim of the orbit.
What is Gillies approach?
Temporal (Gillies) approach – Skin incision The Gillies technique describes a temporal incision (2 cm in length), made 2.5 cm superior and anterior to the helix, within the hairline. A temporal incision is made. Care is taken to avoid the superficial temporal artery.
What is a Transantral approach?
A transantral approach allows access to the orbital floor via the maxillary sinus. This approach may be especially useful when repairing a floor fracture of the trap door variety. Achieve exposure of the incision site with upper labial retraction exposing the buccal-gingival sulcus.
Where is a zygomatic arch fracture?
Zygomatic arch fractures After the nasal bone, the zygoma is the second most common bone of the face to be fractured. The group at highest risk is young males. Aetiology is usually blunt trauma to the cheek, such as involved in: Assault.
What is the tympanic sulcus?
The tympanic sulcus is a groove on the tympanic ring where the tympanic membran is attached.
What is the auditory meatus?
external auditory canal, also called external auditory meatus, or external acoustic meatus, passageway that leads from the outside of the head to the tympanic membrane, or eardrum membrane, of each ear. The canal is nearly 1 inch (2.5 cm) in length and is lined with skin that extends to cover the tympanic membrane.
How is an open treatment of a zygomatic arch fracture treated?
Having trouble finding cpt code for open treatment of zygomatic arch fracture through sublabial incion. The physician reduces a fracture of the malar complex. No internal fixation is used. The physician makes facial incisions through the scalp, eyebrow, and/or lower eyelid.
Can a fracture of the zygomatic arch cause Malar depression?
Fractures of the ZMC or zygomatic arch can often lead to unsightly malar depression, which should be corrected to restore a normal facial contour. ZMC fractures can also cause significant functional issues, including trismus, enophthalmos and/or diplopia, and paresthesias of the infraorbital nerve.
How does the size of the plate along the zygomatic arch depend?
The size and strength of the plate along the zygomatic arch depends on the comminution and instability of the fracture. Extreme care should be taken during the dissection around the zygomatic arch so as not to injure the temporal branch of the facial nerve.
Why do you need 3 point fixation for zygoma?
In order to achieve proper reduction of the lateral orbital wall the greater wing of the sphenoid and the zygoma must be properly aligned. 3-point fixation ensures accurate 3-D repositioning of the fractured zygoma.