How do you fix a zygoma fracture?
How do you fix a zygoma fracture?
Conclusion: Surgical intervention is an effective treatment modality of depressed zygomatic complex fractures, whereas a nonsurgical approach is often used for nondisplaced fractures. Most zygomatic complex fractures can be treated solely by an intraoral approach and rigid fixation at the zygomaticomaxillary buttress.
What are the basic fixation devices for fracture?
There are three basic types of external fix- ators: standard uniplanar fixator, ring fixator, and hybrid fixator. The numerous devices used for internal fixation are roughly divided into a few major categories: wires, pins and screws, plates, and intramedul- lary nails or rods.
What instrument is used during a zygomatic fracture repair to elevate the bone?
Reduction using the transoral (Keen) approach The instrument (zygoma elevator, Boise elevator, etc) is used to elevate the zygomatic arch into its proper position. Because of the close proximity of the intraoral incision, the surgeon can often use their finger to palpate whether proper reduction has been achieved.
What is the management of fracture?
The general principles of fracture management is to reduce the fracture (open or closed) in a manner that will restore normal anatomy and maintain the reduced position through an immobilization/fixation technique that is sufficient to withstand the potential for loss of reduction through deforming or external forces.
When should a ZMC fracture be fixed?
The most common indication for surgery in ZMC fractures is displacement and rotation, and most displaced ZMC fractures should be treated surgically. If reduction is not performed properly, facial asymmetry will be prominent, as the result of lowering the malar prominent point [2].
Where are the screws placed on a zygoma fracture?
If a plate is used, we recommend placing only one screw on each side of the fracture, allowing the zygoma to swing into its proper position for reduction. After the other plates and screws have been placed at the zygomatic arch, infraorbital rim, and zygomaticomaxillary buttress, the final screws can be placed in the frontozygomatic plate.
What does a 3 point fixation do for a zygoma?
3-point fixation ensures accurate 3-D repositioning of the fractured zygoma. Resulting orbital floor defects must also be addressed. The aim is to restore the proper orbital volume and to restore proper width, AP projection, and height of the midface. Proper reduction of the zygoma addresses the issues of AP projection of the width of the midface.
When is a zygomatic fracture requires orbital floor reconstruction?
In a zygomatic fracture that requires orbital floor reconstruction, after exposing the zygoma and orbital floor, the zygoma should be disimpacted prior to dissecting herniated orbital soft tissues from the maxillary sinus. In a fracture of this nature, the reduction and fixation of the zygoma should be performed first.
Can a zygomatic arch be used as a reference?
The zygomatic arch may be an excellent reference as to whether the proper AP projection of the midface has been restored. In cases where the arch has been fractured and displaced at several different levels, use of the arch to reposition the zygoma may be less reliable.
