Sinuses are mucosa-lined airspaces within the. The spontaneous obliteration resulted, in the period analyzed, in earlier bone maturation compared with the obliteration by heterogeneous bone. The frontal sinuses are one of the four pairs of paranasal sinuses that are situated behind the brow ridges. The controversies concerning obliteration of the frontal sinus in response to trauma, infection, or tumor growth are long-standing (1913 to the present) and. The nasofrontal duct obliteration with autogenous muscle associated with autogenous tibial bone (group II) or with heterogeneous bone (group I) was effective, isolating the frontal sinus from the nasal cavity. For complicated, displaced frontal sinus outflow tract fractures, obliteration was more frequently favored by plastic surgeons and oral and maxillofacial.
The nasofrontal ducts were obliterated by new bone formation or fibrous tissue (1 animal only).īoth methods used for frontal sinus obliteration were effective the heterogeneous bone (human bone) was well tolerated and presented low antigenicity. The 2 studied techniques were both effective in obliterating the frontal sinus with newly formed bone. In an attempt to decrease the morbidity of this procedure, a less invasive obliterative approach to the frontal sinus was developed. But when maximal brow bone reduction is desired or as a secondary reduction method when the first is inadequate, it offers a highly effective reduction contouring method. The monkeys were killed after 180 days, and routine laboratory procedures were followed for hematoxylin-eosin staining and histologic evaluation of the specimens. Osteoplastic frontal sinus obliteration is an effective but relatively invasive method for the treatment of frontal sinus disease. OBJECTIVES: Patients who fail endoscopic drainage proce- dures for chronic frontal sinusitis often require obliteration of the frontal sinus with abdominal. Frontal sinus obliteration is not a standard technique in brow bone reduction and is usually only used in the rare event of chronic frontal sinusitis/bone flap osteomyelitis. In all animals, the sinus anterior wall was repositioned and fixed with 1.0 plate and screws.
#FRONTAL SINUS OBLITERATION FULL#
Group II monkeys underwent obliteration of the nasofrontal ducts with a frontal muscle segment and tibial autogenous bone plug, without full obliteration of the frontal sinus.
#FRONTAL SINUS OBLITERATION FREE#
Group I monkeys underwent obliteration of the nasofrontal ducts with a free segment of frontallis muscle and corticocancellous heterogeneous bone, followed by full obliteration of the sinus with corticocancellous heterogeneous bone (Dayton Regional Tissue Bank, Dayton, OH). In this study, we evaluated the results of spontaneous osteoneogenesis of the frontal sinus with autogenous bone plug versus obliteration with heterogeneous (human) bone in monkeys (Cebus apella).Įight young adult male C apella monkeys underwent an ostectomy of the anterior wall of the frontal sinus, removal of the sinus mucosa, and inner decortication of the bony walls and then were divided into 2 groups of 4 each, as follows.
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