What is sinus obliteration?
Osteoplastic frontal-sinus obliteration is a surgery that eliminates the frontal sinuses in order to prevent chronic infection, or in response to head trauma or cancer. Patients needing this surgery often have undergone other less-invasive procedures such as endoscopic sinus surgery.
Where is the Nasofrontal duct?
The frontonasal duct is a communication between the frontal sinus and the nasal cavity. It opens in the middle nasal meatus through the infundibulum of the semilunar hiatus.
What is Cranialization of frontal sinus?
Severe injuries which result in disruption of greater than 25% of the posterior table should be considered for cranialization. This involves exposure of the entire sinus, meticulous removal of all sinus mucosa, and removal of the posterior table bone.
Where does the frontonasal duct drain?
The frontonasal duct is a communication between the frontal air sinuses and their corresponding nasal cavity. The duct is lined by mucous membrane. The duct empties into the nasal cavity middle nasal meatus through the infundibulum of the semilunar hiatus.
What does Cranialization mean?
Cranialization refers to the removal of the posterior table of the frontal sinus with occlusion of the inlet into the frontonasal ducts and allowing the neural structures, mainly frontal lobes of the brain and the intact dura, to move directly posterior to the anterior table of the frontal bone.
What is an osteoplastic flap?
Medical Definition of osteoplastic flap : a surgically excised portion of the skull folded back on a hinge of skin to expose the underlying tissues (as in a craniotomy)
What is OMC in ent?
The ostiomeatal complex (OMC) is the collection of structures that aids in mucus drainage and airflow between the maxillary sinus, the anterior ethmoid air cells, and the frontal sinus. It is located on the lateral wall of the nasal cavity and has several well defined borders.
Is a sinus fracture serious?
Sinus fractures can lead to a lifetime of sinus disease. As such, sinus issues should be treated by a facial plastic surgeon that has extensive training in sinus surgery as an otolaryngologist (ENT).
What is a Bicoronal craniotomy?
Bilateral Craniotomy. To reach bilaterally the supraorbital rims, a craniotome is inserted into one of the burr holes and worked through the bone. The course of the craniotomy runs through the frontal sinus. Linking the burr holes. Carefully dissect the dura from the internal table of the skull.
What does Osteoplastic mean?
/ (ˌɒstɪəˈplæstɪk) / adjective. of or relating to osteoplasty. of or relating to the formation of bone.
What is the role of obliteration in the treatment of sinus fractures?
Obliteration procedures are employed for complex anterior displaced frontal sinus fractures with obstruction of the nasofrontal outflow tracts.
How is the nasal sinus mucosa removed during obliteration?
As for obliteration procedures, the sinus mucosa is completely removed and the nasofrontal ducts are blocked to exclude the intracranial cavity from the nasal sinuses. 52,67 A vascularized pericranial graft is harvested, reflected over the preexisting frontal sinus, and tacked to the dura ( Fig. 136-3 ).
Is the frontal recess the same as the nasal duct?
The frontal recess is also known as the nasofrontal duct. However, since it does not have bony walls of its own, it is more appropriately referred to as a recess rather than a duct. Depending on the references, the frontal recess may used synonymously with the term frontal sinus outflow tract/drainage pathway, its lower half, or its upper half.
What are the conditions required for the removal of nasal mucosa?
There must be: (1) Meticulous removal of all visible mucosa and the inner bony cortex of the sinus wall. (2) Permanent occlusion of the nasofrontal duct. (3) The correct choice of material for the obliteration. Publication types Review MeSH terms