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https://www.readbyqxmd.com/read/28528359/anatomic-basis-of-le-fort-1-impaction-osteotomy-a-radiological-study
#1
Rivka Bendrihem, Christian Vacher, Audrey Fohlen, Jean-Pierre Pelage
PURPOSE: In Le Fort 1 osteotomy when a maxillary impaction is necessary, surgeons have to face different anatomical problems. (1) To determine the best bone resection route, they have to consider the situation of dental roots, infraorbital foramen and maxillary artery. (2) In case of Le Fort 1 osteotomy combined with a mandibular sagittal split osteotomy, the palate has to be replaced in horizontal position although there is no anatomical landmark. (3) In case of Gummy smiles, it can be due to either long face or short upper lip...
May 20, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28515028/augmentation-of-the-infraorbital-rim-in-orthognathic-surgery
#2
T Fattahi, S Salman, B Steinberg
Mid-face augmentation via a Le Fort I osteotomy is a commonly performed operation. Advancement of the upper jaw and associated structures (nose, lower cheek areas) can certainly improve function as well as facial aesthetics and harmony. Often, in patients with severe mid-face deficiency, hypoplasia of the maxilla extends all the way up to the infraorbital rims. The receding infraorbital rim contributes to the negative vector of the globes. In patients with this level of mid-face hypoplasia, while advancing the maxilla at the Le Fort I level satisfies all of the requirements for orthognathic surgery, the deficient infraorbital rim remains unchanged and can actually accentuate the negative vector of the globes...
May 14, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28499507/nasolabial-changes-after-two-different-approaches-for-surgically-assisted-rapid-maxillary-expansion
#3
N Alves, T F M Oliveira, V A Pereira-Filho, E S Gonçales, M A C Gabrielli, L A Passeri
This retrospective study evaluated the nasolabial changes in patients who underwent surgically assisted rapid maxillary expansion (SARME) using two different approaches. Nineteen patients were included in the study, divided into two groups according to the kind of surgical approach performed: group 1 (n=9), SARME performed through the standard Le Fort I circumvestibular approach followed by the alar base cinch, and group 2 (n=10), SARME performed through a subtotal vestibular approach associated to a V-shaped incision at the maxillary midline in the labial frenulum region, without alar base cinch...
May 9, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28493922/comparison-of-the-long-term-clinical-performance-of-a-biodegradable-and-a-titanium-fixation-system-in-maxillofacial-surgery-a-multicenter-randomized-controlled-trial
#4
B Gareb, N B van Bakelen, G J Buijs, J Jansma, J G A M de Visscher, Th J M Hoppenreijs, J E Bergsma, B van Minnen, B Stegenga, R R M Bos
BACKGROUND: Biodegradable fixation systems could reduce or eliminate problems associated with titanium removal of implants in a second operation. AIM: The aim of this study was to compare the long-term (i.e. >5 years postoperatively) clinical performance of a titanium and a biodegradable system in oral and maxillofacial surgery. MATERIALS AND METHODS: The present multicenter Randomized Controlled Trial (RCT) was performed in four hospitals in the Netherlands...
2017: PloS One
https://www.readbyqxmd.com/read/28489659/relationship-between-the-quantity-of-nerve-exposure-during-bilateral-sagittal-split-osteotomy-surgery-and-sensitive-recovery
#5
Paolo Gennaro, Maria Elisa Giovannoni, Niccolò Pini, Ikenna Valentine Aboh, Guido Gabriele, Giorgio Iannetti, Flavia Cascino
AIM AND OBJECTIVES: The purpose of this study was to evaluate how different exposures of the V3 nerves during orthognathic surgery impact neurosensory disturbances. METHODS: The study included 127 patients who underwent either bilateral sagittal split osteotomy (BSSO) or BSSO with maxillary le Fort 1. They were divided into 6 groups, identified by the quantity of V3 nerve exposure. All patients were examined in a pre-op period and again after 1, 3, 6 months post-op...
May 9, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28488465/surgical-management-of-lower-limb-fractures-in-patients-with-spinal-cord-injury-less-associated-with-complications-than-non-operative-management-a-retrospective-series-of-cases
#6
Alban Fouasson-Chailloux, Raphael Gross, Marc Dauty, Guillaume Gadbled, Sophie Touchais, Marc Le Fort, Brigitte Perrouin-Verbe
OBJECTIVES: To evaluate the difference in terms of overall complications between surgical and non-surgical management of lower limb fractures in patients with chronic spinal cord injury (SCI). DESIGN: A 13-year retrospective study including patients with chronic spinal cord lesion admitted for sublesional lower limb fractures. SETTING: University hospital SCI reference departments (Rehabilitation department and orthopedic department). PARTICIPANTS: Forty patients with SCI were included, 24 men and 16 women...
May 10, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28468158/velopharyngeal-insufficiency-after-le-fort-i-osteotomy-in-a-patient-with-undiagnosed-occult-submucous-cleft-palate
#7
Rushil R Dang, Bonnie L Padwa, Cory M Resnick
The authors present a 16-year-old patient with no known history of cleft palate who developed velopharyngeal insufficiency after a Le Fort I osteotomy performed for the correction of maxillary hypoplasia and a Class III malocclusion. Postoperative evaluation revealed the presence of velopharyngeal insufficiency and subtle findings of an occult submucous cleft palate. She had a pharyngeal flap 6 months later with successful correction of the velopharyngeal insufficiency. This case illustrates the need to screen for submucous cleft palate prior to orthognathic surgery...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28466191/operative-time-blood-loss-hemoglobin-drop-blood-transfusion-and-hospital-stay-in-orthognathic-surgery
#8
Ra'ed Ghaleb Salma, Fahad Mohammed Al-Shammari, Bishi Abdullah Al-Garni, Mohammed Abdullah Al-Qarzaee
PURPOSE: This study was conducted to evaluate the operative time, blood loss, hemoglobin drop, blood transfusion, and length of hospital stay in orthognathic surgery. METHODS: A 10-year retrospective analysis was performed on patients who underwent bilateral sagittal split osteotomy (with or without genioplasty), Le Fort I osteotomy (with or without genioplasty), or any combination of these procedures. A total of 271 patients were included. RESULTS: The age range was 17 to 49 years, with a mean age of 24...
June 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28463990/the-presence-of-bacterial-microcolonies-on-the-maxillary-sinus-ciliary-epithelium-in-healthy-young-individuals
#9
Monika Morawska-Kochman, Krzysztof Marycz, Katarzyna Jermakow, Kamil Nelke, Wojciech Pawlak, Marek Bochnia
OBJECTIVE: The aim of this cross-sectional in vitro study was to evaluate the mucosal surfaces of healthy maxillary sinuses, explore different forms of bacterial microorganism colonies present on the mucous membrane, and determine a mucosal surface area they occupy. METHODS: Samples of the maxillary sinus mucosa were collected from 30 healthy patients (M = 11; F = 19). The material was obtained during the Le Fort I osteotomy performed during corrective jaw surgery...
2017: PloS One
https://www.readbyqxmd.com/read/28462475/use-positional-screws-for-le-fort-i-osteotomy-fixation-technical-note
#10
Rafael Linard Avelar, Maykel Sullyvan Marinho de Souza, Eduardo Costa Studart Soares, Rodrygo Nunes Tavares
In recent years, several studies related to fixation systems have been published, but few suggest any variations of the Le Fort I osteotomy technique, and the use of plates and screws placed along the canine and zygomatic pillar are common. The 20-year-old patient with Crouzon syndrome presented with severe hypoplasia of the maxillary, mandibular prognathism, and class III facial pattern. The patient underwent orthognathic surgery and high Le Fort I osteotomy with the fixation of eight positional screws. The aim of this paper is to describe a different technique for the fixation in high maxillary osteotomies, which can be used in specific cases...
May 1, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28462182/evaluation-of-temporomandibular-disorders-before-and-after-orthognathic-surgery-therapeutic-considerations-on-a-sample-of-76-patients
#11
Carlo di Paolo, Giorgio Pompa, Paolo Arangio, Anna di Nunno, Stefano Di Carlo, Daniele Rosella, Piero Papi, Piero Cascone
OBJECTIVES: Temporomandibular disorders may be associated with dental and facial malformations. The aim of this study is to record the prevalence of TMDs in patients scheduled for orthognathic surgery, reporting the development of TMDs and symptoms during the entire period of the treatment, and demonstrating the benefits of a team effort on this population. MATERIALS AND METHODS: Assessment of temporomandibular status was performed using the RDC/TMD criteria at T0 (prior to orthodontic therapy), T1 (3 months after the surgery), and T2 post-therapeutic cycle (6 to 12 months postoperatively)...
March 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28438597/massive-middle-cerebral-artery-infarction-after-surgically-assisted-rapid-palatal-expansion-a-case-report
#12
Kenneth Kufta, Luis Perez Melean, M Sean Grady, Neeraj Panchal
Dentofacial deformities have a marked impact on a patient's quality of life. Fortunately, these deformities often can be corrected through orthodontic and surgical treatment. In adults, transverse maxillary discrepancies are often corrected by performing a surgically assisted rapid palatal expansion (SARPE) procedure. This procedure is accompanied by many of the same complications involved in performing a Le Fort I osteotomy. Although major complications from maxillary surgery are uncommon, severe hemorrhage and cerebrovascular accidents are real risks accompanied by serious sequelae...
March 31, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28438443/cone-beam-computed-tomography-assessment-of-the-pterygomaxillary-region-and-palatine-canal-for-le-fort-i-osteotomy
#13
G Q V Oliveira, M A Rossi, T V Vasconcelos, F S Neves, I Crusoé-Rebello
The aim of this study was to evaluate the anatomical linear measurements of the descending palatine canal and the pterygomaxillary fissure for Le Fort I preoperative planning. Seventy-five patients, comprising 46 females (61.3%) and 29 males (39.7%), underwent multi-slice computed tomography examinations performed for preoperative orthognathic surgical planning. The images were categorized according to sex, craniofacial side, and skeletal and craniofacial patterns. The anterior length between the descending palatine canal and the lateral wall of the piriform rim showed a higher mean value for males compared to females (P=0...
April 21, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28432875/one-step-surgical-correction-of-transverse-and-anteroposterior-maxillary-deficiencies-using-wire-fixation-a-new-approach-and-long-term-stability
#14
Max Domingues Pereira, Vivian Farfel, Gabriela Pereira Ribeiro Prado, Lydia Masako Ferreira
PURPOSE: To describe a retrospective assessment of the long-term stability of a new approach using wire fixation for 1-step surgical correction of transverse and anteroposterior maxillary deficiencies. PATIENTS AND METHODS: The authors implemented a case series of 5 adult patients (3 men and 2 women; mean age, 31.4 yr) needing maxillary advancement less than 5 mm and had transverse maxillary deficiency greater than 7 mm who underwent total Le Fort I and median palatal suture osteotomies and had their maxilla advanced and stabilized bilaterally with stainless steel wire...
March 22, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28419845/does-orthognathic-surgery-cause-or-cure-temporomandibular-disorders-a%C3%A2-systematic-review-and-meta-analysis
#15
REVIEW
Essam Ahmed Al-Moraissi, Larry M Wolford, Daniel Perez, Daniel M Laskin, Edward Ellis
PURPOSE: There is still controversy about whether orthognathic surgery negatively or positively affects temporomandibular disorders (TMDs). The purpose of this study was to determine whether orthognathic surgery has a beneficial or deleterious effect on pre-existing TMDs. MATERIALS AND METHODS: A systematic review and meta-analysis were conducted based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We searched 3 major databases to locate all pertinent articles published from 1980 to March 2016...
March 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28406135/sliding-malar-bone-augmentation-technique-with-a-high-le-fort-i-surgically-assisted-rapid-maxillary-expansion
#16
G Dergin, P Aktop, S Biren, S Aktop
The purpose of this report is to evaluate the effectiveness of a high Le Fort I osteotomy design, including the malar bones, which allows segment sliding over the zygoma and forces the osteotomized segment to move forward with distraction. Two patients (male, 23-and 30-year-old) with malar deficiency underwent high Le Fort I osteotomy and surgically assisted rapid maxillary expansion procedure was followed. Records were taken before and 6 months after surgery for comparison, including intra and extra oral photographs and three-dimensional cone-beam computed tomography (CBCT) images...
April 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28403134/early-computer-aided-design-computer-aided-modeling-planned-le-fort-i-advancement-with-internal-distractors-to-treat-severe-maxillary-hypoplasia-in-cleft-lip-and-palate
#17
Catherine S Chang, Jordan Swanson, Jason Yu, Jesse A Taylor
Traditionally, maxillary hypoplasia in the setting of cleft lip and palate is treated via orthognathic surgery at skeletal maturity, which condemns these patients to abnormal facial proportions during adolescence. The authors sought to determine the safety profile of computer-aided design/computer-aided modeling (CAD/CAM) planned, Le Fort I distraction osteogenesis with internal distractors in select patients presenting at a young age with severe maxillary retrusion. The authors retrospectively reviewed our "early" Le Fort I distraction osteogenesis experience-patients performed for severe maxillary retrusion (≥12 mm underjet), after canine eruption but prior to skeletal maturity-at a single institution...
April 11, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28403023/incidence-of-le-fort-surgery-in-a-mature-cohort-of-patients-with-cleft-lip-and-palate
#18
Cecilia Dalle Ore, Anna Schoenbrunner, Michael Brandel, Nicola Kronstadt, Joyce McIntyre, Marilyn Jones, Amanda Gosman
Primary repair of cleft lip and palate occurs early in life, but ideal timing of these interventions remains controversial. Prior research has indicated that a later palate repair may improve patients' midfacial growth long term, whereas optimal timing of lip repair to maximize midfacial growth has not been identified.The purpose of this study is to analyze a large, diverse cohort of patients with cleft lip and palate to determine whether timing of primary palate repair and primary lip repair contributed significantly to subsequent orthognathic surgery...
April 11, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28399616/orthodontic-surgical-treatment-and-respiratory-function-rhinomanometric-assessment
#19
Guido Galbiati, Cinzia Maspero, Lucia Giannini, Guia C Guenza, Federica Zanoni, Giampietro Farronato
BACKGROUND: Several correlations between morphological and/or positional alterations of the jaws and respiratory functional impairments have been reported. Nasal airway obstruction represents a critical issue with no clearly defined gold standard as for its measurement. Rhinomanometry was adopted by multiple Authors to evaluate whether patients with malocclusion developed respiratory functional changes after an orthodontic-surgical treatment. However, there are contrasting findings in the literature regarding the possibility of improving the respiratory function by means of surgically-assisted rapid palatal expansion (SARPE) or bimaxillary repositioning of the bony bases...
June 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28399025/incidence-of-le-fort-surgery-in-a-mature-cohort-of-patients-with-cleft-lip-and-palate
#20
Cecilia Dalle Ore, Anna Schoenbrunner, Michael Brandel, Nicola Kronstadt, Joyce McIntyre, Marilyn Jones, Amanda Gosman
Primary repair of cleft lip and palate occurs early in life, but ideal timing of these interventions remains controversial. Prior research has indicated that a later palate repair may improve patients' midfacial growth long term, whereas optimal timing of lip repair to maximize midfacial growth has not been identified.The purpose of this study is to analyze a large, diverse cohort of patients with cleft lip and palate to determine whether timing of primary palate repair and primary lip repair contributed significantly to subsequent orthognathic surgery...
May 2017: Annals of Plastic Surgery
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