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Öğe Changes in maxillary perfusion following Le Fort Iosteotomy in orthognathic surgery(2021) Sancar, Bahadir; Ünlütürk, Burak; Musulluoglu, FerhatLe Fort I osteotomy is a surgical procedure that can be used in adaptation of abnormally positioned jaws, skeletal malocclusions,aesthetic operations, treatment of obstructive sleep apnea, access to tumors with intracranial extensions and in other types of skullbase surgery. The main problems in Le Fort I osteotomy which is performed using various techniques directed to the maxilla areintraoperative bleeding and impaired blood supply of the osteotomized segment. Results of studies evaluating the perfusion of themaxilla during and after Le Fort I osteotomy were reviewed in the present study.Vascular events occurring during surgery should be better acknowledged in order to prevent complications such as intraoperativeinsufficient maxillary perfusion or postoperative bleeding. Maxillary perfusion after maxillary downfracture depends on palatal andposterior buccal soft tissue pedicles. The conclusions from previous extensive studies on maxillary blood supply after downfracturehave shown that a properly performed single-segment Le Fort I osteotomy is predictable and safe. However, factors such asmultisegmentalization of the maxilla, traction of the pedicle as a result of significant dentoosseous reposition, routine ligation ortraction of descending palatine artery, hypotensive anesthesia, transverse laceration in the palatal soft tissues, compression, andpre-existing scar tissue adversely affect the blood flow from these pedicles to the maxillary hard and soft tissues. As a result, it can be suggested that complications related to intraoperative and postoperative perfusion of maxilla in Le Fort Iosteotomy are rare and this surgery is safe.Öğe Surgical removal of a fungus ball formed in the maxillary sinus secondary to surgically assisted rapid palatal expansion procedure during Le Fort I osteotomy(2020) Sancar, Bahadır; Duman, Şuayip Burak; Ünlütürk, BurakAbstract: Surgically assisted rapid palatal expansion (SARPE) is a surgery with a low rate of complications frequently performed in cases of maxillary transverse deficiency. Although fungal infection of the paranasal sinuses is rare in healthy people, this rate rises after the use of antibiotics and steroids, and after invasive interventions of the sinus. In our study, we present surgical removal of aspergillosis formed in the case of an 18-year-old female patient secondary SARPE procedure, with Le Fort I osteotomy. A cone beam computed tomography examination 6 months after the surgical removal of aspergillosis showed no recurrence. In conclusion, we report that aspergillosis may occur secondary to SARPE procedure and can successfully be removed in a single session with Le Fort I osteotomy.