The malar complex refers to the zygoma
What is a malar bone fracture?
The term malar complex fracture refers to a fracture which in its classic form primarily involves the suture lines of the zygomatic bone.
What bones are included in a LeFort 1 fracture?
Bones fractured in a Le Fort I fracture include the lower nasal septum, the inferior portion of the pyriform apertures, the canine fossae, both zygomaticomaxillary buttresses, the posterior maxillary walls, and the pterygoid plates.
What facial bone is the most commonly fractured by trauma?
Nasal bones (broken nose): Nasal bone fractures are the most common type of facial fracture. The nasal bone is made up of two thin bones. It takes less force to break the nasal bones than other facial bones because they are thin and prominent.What is Zygomaticomaxillary complex 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 a maxillary sinus fracture?
Maxillary sinus fractures (MSFs) are most commonly caused by blunt force trauma to the face. Depending on the magnitude and location of the direct injury, MSFs can vary in appearance and symptomatology.
Where is the malar eminence?
The malar eminence is defined as the most prominent portion of the zygomaticomaxillary complex. It dominates the lateral midface, defines cheek projection and contour, and has an important role to play in ocular globe position and in mastication.
What is the most commonly fractured structure of the maxillofacial complex?
In patients who require surgery, the most commonly fractured bone is the mandible (41.6–75.2%) [1, 13, 15]. The second and third most commonly fractured bones vary with the series, being the maxilla and orbit (39.8% each) in one series [1] but the malar bone (15.2%) and maxilla (6.4%) in another [15].What are the fourteen facial bones?
- Inferior turbinal (2)
- Lacrimal bones (2)
- Mandible.
- Maxilla (2)
- Nasal bones (2)
- Palatine bones (2)
- Vomer.
- Zygomatic bones (2)
Maxillofacial trauma is any injury to the face or jaws. Facial trauma may present with skin lacerations, burns, obstruction to the nasal cavity or sinuses, damage to the orbital (eye) sockets, fracture to the jawbone, and missing or broken teeth.
Article first time published onWhat is Le Fort II fracture?
Definition. The Le Fort II fracture is also referred to as a pyramidal fracture. It commonly extends from the pterygoid plate through the maxilla, through the nasal orbital ethmoid area, and nasofrontal bone. Patients with Le Fort II injuries are often admitted to hospital unconscious and intubated.
Where is maxillary?
The maxilla is the bone that forms your upper jaw. The right and left halves of the maxilla are irregularly shaped bones that fuse together in the middle of the skull, below the nose, in an area known as the intermaxillary suture.
What is a Le Fort 4 fracture?
Le Fort I level fractures are essentially a separation of the hard palate from the upper maxilla due to a transverse fracture running through the maxilla and pterygoid plates at a level just above the floor of the nose.
What is maxillary complex?
Practice Essentials. The zygomaticomaxillary complex (ZMC) plays a key role in the structure, function, and aesthetic appearance of the facial skeleton. It provides normal cheek contour and separates the orbital contents from the temporal fossa and the maxillary sinus.
What is Quadripod fracture?
The zygomaticomaxillary complex fracture, also known as a quadripod fracture, quadramalar fracture, and formerly referred to as a tripod fracture or trimalar fracture, has four components, three of which are directly related to connections between the zygoma and the face, and the fourth being an orbital blowout.
What is the Frontozygomatic suture?
Anatomical terminology. The zygomaticofrontal suture (or frontozygomatic suture) is the cranial suture between the zygomatic bone and the frontal bone. The suture can be palpated just lateral to the eye.
What is the malar region?
The zygomatic bone, or malar bone, is a paired bone which articulates with the maxilla, the temporal bone, the sphenoid bone, and the frontal bone. It creates the prominence of the cheek and takes part in the formation of the lateral wall and floor of the orbit and in that of the temporal and infratemporal fossa (Fig.
What is the malar region of the face?
zygomatic bone, also called cheekbone, or malar bone, diamond-shaped bone below and lateral to the orbit, or eye socket, at the widest part of the cheek. It adjoins the frontal bone at the outer edge of the orbit and the sphenoid and maxilla within the orbit.
What is Zygoma bone?
The zygomatic bone (or zygoma) is a paired, irregular bone that defines the anterior and lateral portions of the face. The zygomatic complex is involved in the protection of the contents of the orbit and the contour of the face and cheeks.[1]
What is bilateral maxillary sinusitis?
Maxillary Sinusitis is the inflammation of the paranasal sinuses caused by a virus, bacteria, or fungus. The infection can also result after an allergic reaction – when the immune system attacks the healthy body cells. This infection may be associated with both bacterial and fungal infections.
What Innervates the maxillary air sinus?
The maxillary sinus is supplied by branches of the internal maxillary artery, which include the infraorbital, alveolar, greater palatine, and sphenopalatine arteries. It is innervated by branches of the second division of the trigeminal nerve, the infraorbital nerve, and the greater palatine nerves.
Where are the maxillary sinuses?
A type of paranasal sinus (a hollow space in the bones around the nose). There are two large maxillary sinuses, one in each of the maxillary bones, which are in the cheek area next to the nose. The maxillary sinuses are lined with cells that make mucus to keep the nose from drying out.
Which pair of facial bones forms the cheekbones?
Other important facial bones are the paired zygomatic bones, these bones are the ones that form the cheek bones.
Which bone is a facial bone?
Definition. The facial bones (viscerocranium) make up most of the front of the skull. The bones responsible for the form of the face are – from top to bottom – the inferior nasal conchae and the nasal, maxilla, zygomatic, lacrimal, ethmoid, vomer, sphenoid, palatine, and mandible bones.
Is frontal bone a facial bone?
The primary bones of the face are the mandible, maxilla, frontal bone, nasal bones, and zygoma. Facial bone anatomy is complex, yet elegant, in its suitability to serve a multitude of functions.
How is a fractured cheekbone treated?
Cheekbone fractures usually heal without infection but it may be necessary to give you antibiotics, particularly if a “graft” has been used. Initially it may be necessary to give you antibiotics through a vein in your arm whilst you are in hospital.
How many types of maxillary fracture are there?
His experiments determined the areas of structural weakness of the maxilla designated as “lines of weakness” where fractures occurred. These fractures are classified into three distinct groups based on the direction of the fracture: horizontal, pyramidal or transverse.
What is a fractured Zygoma?
From Wikipedia, the free encyclopedia. A zygoma fracture (zygomatic fracture) is a form of facial fracture caused by a fracture of the zygomatic bone. A zygoma fracture is often the result of facial trauma such as violence, falls or automobile accidents.
How is a maxillary fracture treated?
Maxillary fractures are treated by reduc- tion and immobilization. Establishment of preinjury occlusion and midface buttress alignment provides the foundation for this treatment. The goals of treatment of LeFort fractures are to reestablish preinjury occlusion with normal height and projection of the face.
How is a maxillary fracture diagnosed?
Signs and symptoms. Mobility of alveolar segments should be checked for the entire maxillary arch. Displacement of fractured segments results in malocclusion which is an important sign to the clinician in diagnosing the palatal fracture. Ecchymosis of the palate may also indicate the line of fracture.
How do you fix a maxillary sinus fracture?
In the surgical treatment of an isolated anterior wall of the maxillary sinus fracture, open reduction and ridged fixation is required. Large fragments can be fixed with plates and screws and small fragments can either be positioned at the bony defect or removed.
