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Relevant bibliographies by topics / LeFortI osteotomy

Academic literature on the topic 'LeFortI osteotomy'

Author: Grafiati

Published: 14 March 2023

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Journal articles on the topic "LeFortI osteotomy"

1

Bell, William H. "LeFort I osteotomy." Journal of Oral and Maxillofacial Surgery 49, no. 8 (August 1991): 29–30. http://dx.doi.org/10.1016/0278-2391(91)90518-q.

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2

Hyman, Charles, and Edward Buchanan. "LeFort I Osteotomy." Seminars in Plastic Surgery 27, no. 03 (October 22, 2013): 149–54. http://dx.doi.org/10.1055/s-0033-1357112.

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Bell, William H. "LeFort I osteotomy." Journal of Oral and Maxillofacial Surgery 47, no. 8 (August 1989): 64–65. http://dx.doi.org/10.1016/0278-2391(89)90560-0.

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Zawiślak, Ewa, Szymon Przywitowski, Anna Olejnik, Hanna Gerber, Paweł Golusiński, and Rafał Nowak. "Current Trends in Orthognathic Surgery in Poland—A Retrospective Analysis of 124 Cases." Applied Sciences 11, no. 14 (July 12, 2021): 6439. http://dx.doi.org/10.3390/app11146439.

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The analysis aims at assessing the current trends in orthognathic surgery. The retrospective study covered a group of 124 patients with skeletal malocclusion treated by one team of maxillofacial surgeons at the University Hospital in Zielona Góra, Poland. Various variables were analysed, including demographic characteristics of the group, type of deformity, type of osteotomy used, order in which osteotomy was performed and duration of types of surgery. The mean age of the patients was 28 (ranging from 17 to 48, SD = 7). The group included a slightly bigger number of females (59.7%), with the dominant skeletal Class III (64.5%), and asymmetries were found in 21.8% of cases. Types of osteotomy performed during surgeries were divided as follows: LeFort I, segmental LeFort I, BSSO, BSSO with genioplasty, LeFort I with BSSO, LeFort I with BSSO and genioplasty, segmental LeFort I with BSSO, isolated genioplasty. Bimaxillary surgeries with and without genioplasty constituted the largest group of orthognathic surgeries (49.1%), and a slightly smaller percentage were one jaw surgeries (46.7%). A statistically significant correlation was found between the type of surgery and the skeletal class. In patients with skeletal Class III, bimaxillary surgeries were performed significantly more often than in patients with skeletal Class II (57.5% vs. 20.0%; p = 0.0002). The most common type of osteotomy in all surgeries was bilateral osteotomy of the mandible modo Obwegeser–Epker in combination with Le Fort I maxillary osteotomy (42.7%). The order of osteotomies in bimaxillary surgeries was mandible first in 61.3% of cases. The longest surgery was bimaxillary osteotomy with genioplasty (mean = 265 min), and the shortest surgery was isolated genioplasty (mean = 96 min). The results of the analysis show a significant differentiation between the needs of orthognathic surgery and the types of corrective osteotomy applied to the facial skeleton.

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Kalyani P, Madhulaxmi M, and Santhosh Kumar M P. "One-piece Lefort osteotomy versus segmental procedure for maxillary skeletal deformities - A retrospective study." International Journal of Research in Pharmaceutical Sciences 11, SPL3 (September 12, 2020): 368–73. http://dx.doi.org/10.26452/ijrps.v11ispl3.2946.

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Maxillary skeletal deformities can occur in all three planes and are corrected by orthognathic surgery. Osteotomies form the basis for orthognathic surgeries. One of the most commonly used osteotomy techniques for maxillary skeletal deformities is the LeFort osteotomy. The aim of this study was to compare the application of One Piece LeFort Osteotomy and Segmental Osteotomy procedures in the treatment of maxillary skeletal deformities. The institutional study involved analysis of case sheets of patients who underwent surgical correction of maxillary skeletal deformities in the stipulated time frame and assessment based on the parameters: Demographic data, type of cephalometric analysis, cephalometric values, type of skeletal deformity, and technique of Osteotomy. Statistical analysis was calculated by chi-square test. A p-value<0.05 was considered significant. Maxillary skeletal deformities were more prevalent among females (60%) than males (40%). Anterior maxillary segmental osteotomies were more commonly performed (60%), followed by LeFort 1 osteotomy (26.7%). The prevalence of posterior osteotomy technique was 13.3%. A statistically significant association was revealed between the type of skeletal malocclusion and technique of Osteotomy used, with a p-value of 0.008<0.05. The type of malocclusion dictates the technique of Osteotomy is used. In a skeletal Class II, segmental malocclusion procedure was more preferred for maxillary deformities.

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Mullath, Aswin, Benny Joseph, Aswathi Vinod, Mohammed Faisal, and Tina Abraham. "Nasolabial morphologic transformations after lefort-1 osteotomy — A prospective study." Journal of Oral Medicine, Oral Surgery, Oral Pathology and Oral Radiology 8, no. 1 (March 15, 2022): 35–40. http://dx.doi.org/10.18231/j.jooo.2022.007.

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The present study was aimed to evaluate the morphologic changes of nose and lip after Lefort 1 osteotomy using clinical and cephalometric parameters A prospective study to evaluate soft tissue changes after Lefort 1 osteotomy which includes 30 individuals of 18-35 years of age presented with dentofacial deformities. Our Study employs the measurement of nasolabial variables using Vernier caliper and lateral cephalograms. These values were recorded and tabulated under T (pre-operative) and T(6 months Post-operative). The final soft tissue changes were analyzed with paired t- test. Our study revealed statistically highly significant (p<0.001) increase in Alar base width, Nasolabial angle, Nasal tip angle and statistically significant (p<0.05) decrease in nasal tip protrusion. Alar base widening is a definitive sequela after Lefort 1 osteotomy even after adopting techniques like alar base cinch suturing and V-Y closure. This warrants that further modifications or innovations are required for preventing these undesirable morphological changes.

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Croft, Kevin, and Stephen Probst. "Deliberate Hypotensive Anesthesia With the Rapidly Acting, Vascular-Selective, L-Type Calcium Channel Antagonist—Clevidipine: A Case Report." Anesthesia Progress 61, no. 1 (March 1, 2014): 18–20. http://dx.doi.org/10.2344/0003-3006-61.1.18.

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Abstract Deliberate hypotension is an important technique for use in select anesthetics for procedures such as orthognathic surgery, specifically LeFort I maxillary osteotomy. We present a case report of an anesthetic involving deliberate hypotension for a 17-year-old female patient who presented for a LeFort I osteotomy, bilateral sagittal split of the mandible, and a genioplasty in order to correct a skeletal class III malocclusion. After reaching a steady-state general anesthetic, deliberate hypotension was induced solely with a bolus and subsequent continuous infusion of the ultrashort acting calcium channel blocker, clevidipine. The preoperative, intraoperative, and postoperative course and anesthetic management are discussed.

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Hegde, P., and K. M. Cariappa. "Lefort II osteotomy for nasomaxillary hypoplasia." International Journal of Oral and Maxillofacial Surgery 36, no. 11 (November 2007): 1094. http://dx.doi.org/10.1016/j.ijom.2007.09.055.

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Mejbel, Mohamed, Hala Sadek Alosman, and Lokman Onur Uyanik. "3D Finite Element Analysis of the Effects of Lefort I Corticotomy on the Temporomandibular Joint (TMJ) and Maxilla in Skeletal Class III Malocclusion Patients." Journal of Medical Imaging and Health Informatics 11, no. 1 (January 1, 2021): 96–103. http://dx.doi.org/10.1166/jmihi.2021.3502.

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Objective: The purpose of this study was to evaluate the influence of Lefort I corticotomy using two skeletally anchored maxillary protraction protocols on temporomandibular joint (TMJ) and maxilla of skeletal class III malocclusion patients using three-dimensional finite element analysis. Methods: Protraction forces of 500 gm per side were applied on maxilla with two different types of Lefort I corticotomy, type A and type B osteotomy using two skeletally anchored maxillary protraction appliances: skeletally anchored facemask and bone-anchored with class III traction. Results: For the facemask appliance the osteotomy types presented clockwise rotation in contrast with bone-anchored with class III traction which showed counter-clockwise rotation. Within the sagittal plane, the most significant amount of anterior displacement was associated with bone-anchored with class III traction type A osteotomy. For the temporomandibular joint, the maximum stress distribution was concentrated in the anterior aspect condyle and superior aspect of the glenoid fossa for the two appliances. However, the stress distribution in bone-anchored with class III traction was more than skeletally anchored facemask. Conclusion: Using Lefort I corticotomy can be a useful alternative for maxillary protraction in adult patients. Bone anchored with class III traction was more effective for maxillary forward displacement than skeletally anchored facemask. However, the stress distribution on TMJ in bone-anchored was more than that in the facemask. However, the amount of rotation in type A cutting was more than in type B cutting.

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Somers, Miles, Peter Tsakiris, Peter Isert, and Samuel Kim. "Management of Total Transection of Nasoendotracheal Tube during LeFort I Osteotomy." Case Reports in Anesthesiology 2020 (November 17, 2020): 1–4. http://dx.doi.org/10.1155/2020/2097240.

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Transection of the nasoendotracheal tube during orthognathic surgery is a rare, but life-threatening complication. We present a case of complete nasoendotracheal tube transection during a LeFort 1 osteotomy and discuss appropriate preventative and management techniques.

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More sources

Dissertations / Theses on the topic "LeFortI osteotomy"

1

GASQUET, FRANCIS. "Expansion maxillaire par osteotomie en trident : bases anatomiques, technique et revue de la litterature." Toulouse 3, 1992. http://www.theses.fr/1992TOU31567.

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Burdin, Philippe. "Contribution a l'etude des parties molles de la face et retentissement des osteotomies de type lefort 1 sur le profil." Aix-Marseille 2, 1988. http://www.theses.fr/1988AIX20265.

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3

Kuppers, Bryan Ulrich. "Stability of Lefort I osteotomy." 1996. http://catalog.hathitrust.org/api/volumes/oclc/47005479.html.

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Chen, Yi Hsuan, and 陳怡璇. "Nasolabial Changes Affected by 2 Different Alar Base Cinch Suture Techniques after Maxillary LeFort I Osteotomy in Class III Malocclusions: A Randomized Controlled Trial." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/70820793583283475237.

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碩士
長庚大學
顱顏口腔醫學研究所
101
Background and purpose: The alteration of the nasolabial soft tissue after maxillary Le Fort I osteotomy is one of the most common complaints of patients after surgery. This study compared the effectiveness of a modified and conventional alar base cinch technique on changes over the nasolabial morphology after maxillary Le Fort I osteotomy. Material &; Method: The prospective randomized controlled study recruited 32 skeletal Class III patients who received maxillary Le Fort I osteotomy to correct skeletal discrepancies. During the intraoral wound-closing procedure, patients were equally separated into 2 groups. C group (14 patients) received the conventional alar base cinch technique; M group (15 patients) received the modified technique. 3dMD stereogrammetry was taken preoperatively (T0), postoperative 4-6 weeks (T1) and 6 months (T2), and 3D CBCT data was taken at T0 and T1. Three dimensional soft tissue and skeletal movement changes were measured. Results: No significant changes between C and M group were shown at T1, and nasal width widening was significantly reduced by 1.40 mm in the C group than in the M group at T2. NLA significantly increased at C and M groups post-surgically 4-6weeks by 8.37 ± 1.37 degree and 10.51 ± 1.69 degree. Nasal tip protrusion significantly increased 0.75 ± 1.56 mm and nasal width decrease 1.19 ± 1.93 mm in C group at T2, and overall upper lip height significantly increased 1.05 ± 1.57 mm in M group at T2. Conclusion: Both C and M alar base cinch suture techniques are effective to control the nasal width, alar base width, and nostril vertical dimension show.

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Book chapters on the topic "LeFortI osteotomy"

1

Monzavi, Carlos Amir Esparza, David E. Morris, and Pravin K. Patel. "LeFort I Osteotomy." In Operative Dictations in Plastic and Reconstructive Surgery, 209–14. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40631-2_50.

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2

Wolfe, S. A., Samuel Berkowitz, Samuel Berkowitz, and Samuel Berkowitz. "LeFort I Osteotomy." In Cleft Lip and Palate, 537–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-30770-6_24.

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Dabir, Ashok, and Jayesh Vahanwala. "Orthognathic Surgery for the Maxilla-LeFort I and Anterior Maxillary Osteotomy." In Oral and Maxillofacial Surgery for the Clinician, 1513–48. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-1346-6_69.

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AbstractThe chapter reviews the history and technique of maxillary orthognathic surgical procedures and highlights the sequence of bimaxillary surgery. A maxillary surgical procedure and its modification can be employed to correct skeletal deformities of the maxilla. With presently available surgical techniques, the maxilla may be independently repositioned in three dimensions. Segmentalization of the maxilla in turn allows repositioning different portions in different three dimensional planes, when done under direct vision. The changes in the position of the maxilla also causes soft tissue changes of the lips, cheeks, and nose. Changes in the nasal complex after orthognathic surgery, with the exception of nasal width, are complicated, and cannot be predicted. Having listed a general guide, the authors reiterate that no dogma should be given regarding the sequence of maxillary or mandibular surgery. Any surgical decision must be made after in-depth planning, preparation, and flexibility. If this is done, sequencing will follow logically.The chapter also includes key considerations in orthognathic surgery viz., adjustment to the base of the Nose and ANS; effect of changing the inclination (slope) of the osteotomy cut; impacted / erupted wisdom teeth; preoperative/intraoperative difficulties and proper positioning. An in-depth account of nutritional support and dealing with complications rounds off the discussion.

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Cahoon, Terri M., and Kris Redden. "LeFort Osteotomy." In Pediatric Anesthesia. New York, NY: Springer Publishing Company, 2022. http://dx.doi.org/10.1891/9780826138750.0080.

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Moore, Ryan M., and Raj M. Vyas. "Orthognathic Surgery." In Operative Plastic Surgery, edited by Gregory R. D. Evans, 609–22. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780190499075.003.0058.

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Orthognathic surgery restores the facial function and aesthetics affected by skeletal and dental deformities. A comprehensive preoperative evaluation, including cephalometric analysis, is essential to correcting facial skeletal imbalance and asymmetry. Operative planning must account for maxillary-to-mandibular occlusal relationship and dental compensations, as well as facial proportions in all dimensions. Virtual surgical planning has recently emerged as a way to facilitate more precise and accurate surgical planning. Operative techniques used to correct facial skeletal and dental deformities, broadly categorized as maxillary or mandibular excess or deficiency, include the LeFort I osteotomy, bilateral sagittal split osteotomy, and genioplasty.

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"CHAPTER 18 LeFort I Osteotomy." In Atlas of Operative Craniofacial Surgery, edited by John Mesa, Steven R. Buchman, Donald R. Mackay, Joseph E. Losee, and Robert J. Havlik. Stuttgart: Georg Thieme Verlag, 2019. http://dx.doi.org/10.1055/b-0039-167215.

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"CHAPTER 19 LeFort II Osteotomy." In Atlas of Operative Craniofacial Surgery, edited by John Mesa, Steven R. Buchman, Donald R. Mackay, Joseph E. Losee, and Robert J. Havlik. Stuttgart: Georg Thieme Verlag, 2019. http://dx.doi.org/10.1055/b-0039-167216.

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"CHAPTER 20 LeFort III Osteotomy." In Atlas of Operative Craniofacial Surgery, edited by John Mesa, Steven R. Buchman, Donald R. Mackay, Joseph E. Losee, and Robert J. Havlik. Stuttgart: Georg Thieme Verlag, 2019. http://dx.doi.org/10.1055/b-0039-167217.

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"17 Midface Distraction and LeFort III Osteotomy for Syndromic Craniosynostosis." In Tenets of Craniosynostosis Surgical Principles and Advanced Multidisciplinary Care, edited by Deepak Kumar Gupta, Ashok Kumar Mahapatra, and Shweta Kedia. Noida: Thieme Medical and Scientific Publishers Private Limited, 2018. http://dx.doi.org/10.1055/b-0042-186677.

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