classification of fractures of mandible, fractures of midface, fractures of zygomaticomaxillary complex, fractures of NOE (facial fractures). Zygomaticomaxillary complex (ZMC) fractures, also known as a tripod, tetrapod, quadripod, malar or thoracolumbar spinal fracture classification systems. ZMC complex fracture. Tripod fx Right zygomaticomaxillary complex fracture with disruption of the lateral orbital wall, orbital floor, zygomatic arch and maxillary sinus. The zygomaticomaxillary complex fracture, also known as a quadripod fracture, quadramalar Classification. D · ICD .
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A series of three case examples illustrates the recording and coding of representative midface fractures:. Fractures of the pterygoid processes accompanying severe facial bone injury.
The pterygoid clasisfication are regarded as self-contained anatomical regions and not as parts of the sphenoid bone.
Asymmetric Le Fort Level midface fracture. Fractures of the sphenoid bone.
The Journal of craniofacial surgery. Facial fracture classification according to skeletal support mechanisms. W1 slim 2 slim. J Oral Maxillofac Surg. UCM, upper central midface: Surgery classifkcation Facial Fractures; pp. A three-dimensional analysis method for edentulous mandibular ridge shape.
Coding rules are given to set up a distinctive formula for typical midface fractures and their combinations.
Case 5 Case 5. A multitude of midface fracture configurations will be converted into a meaningful level 3 classification just by intuition; others will need a predefinition and algorithms that will come up in the multicenter agreement studies 1 ; and eventually there may be a critical subset requiring a redesign of the classification scheme from the ground up, if it turns out clinically relevant.
In front of the mandibular fossa, the anterior root of the zygomatic process emerges medially from the articular tubercle.
Classification and treatment of zygomatic fractures: a review of 1,025 cases.
I0 refers to a midface injury on the right side involving a single fracture line nonfragmented fracture in the zygoma, ftactures fracture lines fragmented fracture in the ICM and UCM, and a nonfragmented fracture in the ICM on the left side. Check for errors and try again. Osseous and soft-tissue complications. In NOE fractures, the extent of injury going beyond the nasal skeletal components into the ethmoid xlassification and the medial orbital walls including the nasolacrimal ducts must be clearly delineated.
W1 li 2 li. These pull-down menus contain a list of level 2 and level 3 features. Computer-based coding of fractures in the craniofacial region. The horizontal fracture line may cross over the tooth apices or lie at or below their level. In addition to nasal fracture components naso-orbital-ethmoid NOE fracture entities typically involve the internal orbit, the lacrimal bone, and ethmoid.
The first AO classification system for fractures of the craniomaxillofaxial skeleton: The medial or central part consists of the paired nasal bones. Discussion This level 3 classification for midface fractures intends to build up on and optimize existing schemes. An evaluation of mandibles and 96 maxillae of dried skulls. Otolaryngologic clinics of North America. Fractures of the midface are identified with the two-digit code 92 1 followed by a letter identifying the involved divisions.
Traumatic bone loss, also referred to as bone defect dapplies to deficits ranging from small fragments to large sections. Open in a separate window.
The Comprehensive AOCMF Classification System: Midface Fractures – Level 3 Tutorial
Raveh J, Vuillemin T. This level 3 classification system is versatile enough to exhibit the features of the whole range of existing zygomatic arch fracture classifications and to indicate ffactures fracture location to the midportion or to the temporal origin.
To account for a more selective analysis of the individual patient’s pretrauma condition, the dentition and the degree of atrophy in the maxillary processes in case of partial or total edentulism are recorded. The upper and transverse maxillary bone has the zygomaticomaxillary and zygomaticotemporal sutures, while the classificatioon and vertical maxillary bone has the zygomaticomaxillary and frontozygomatic sutures.
To assign all the fractured regions and subregions of an extreme panfacial or pancraniofacial fracture into the necessary Level-3 schemes of this AOCMF classification might be ending up in a task of Sissyphean proportions, however it is possible.
Zygomaticomaxillary complex fracture | Radiology Reference Article |
S Level 3 Code: Open reduction and internal fixation is reserved for cases that are severely angulated or comminuted. The description of the fracture morphology at the lateral and inferior orbital flanges of the zygoma ID 5 and 8 conforms to the precepts and nomenclature allocated to the orbital walls within the level 3 Orbital Fracture Classification.
Color coding of a subregion, blue denotes the presence of a fracture without any further differentiation, yellow stands for nonfragmented, nondisplaced, orange is the equivalent for fragmented, a gray crosshatching points out a bone loss. The zygomaticofrontal suture ZFS line labeled as subregion ID 6 conjoins these merging bony portions. The tips of the tooth roots may be completely enclosed within the fractured block, or they may protrude over the fracture line or even be snapped off and left stuck in the bony base cranial to the fractured block.
Actually, there is a CT-based classification proposal for displacement by Fujii and Yamashiro. There is a close rractures between the fracture components and the displacement of midface cassification Figs. From Wikipedia, the free encyclopedia. This will hopefully foster a better understanding of the individual mapping of fractures that is necessary to establish a detailed treatment plan for a patient. Contrary to fractures in the mandible, it is not documented if a fracture line is contiguous between two involved subdivisions.