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Maxillary osteotomy

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https://www.readbyqxmd.com/read/28320612/three-dimensional-image-fusion-of-18-f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-and-contrast-enhanced-computed-tomography-for-computer-assisted-planning-of-maxillectomy-of-recurrent-maxillary-squamous-cell-carcinoma-and-defect-reconstruction
#1
Yao Yu, Wen-Bo Zhang, Xiao-Jing Liu, Chuan-Bin Guo, Guang-Yan Yu, Xin Peng
PURPOSE: The purpose of this study was to describe new technology assisted by 3-dimensional (3D) image fusion of (18)F-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/computed tomography (CT) and contrast-enhanced CT (CECT) for computer planning of a maxillectomy of recurrent maxillary squamous cell carcinoma and defect reconstruction. MATERIALS AND METHODS: Treatment of recurrent maxillary squamous cell carcinoma usually includes tumor resection and free flap reconstruction...
February 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28299256/clinical-and-radiological-evaluation-of-implants-placed-with-osteotome-sinus-lift-technique-19-month-follow-up
#2
Bijan Movahedian Attar, Samaneh Alaei, Hamid Badrian, Amin Davoudi
AIMS: Implant placement in the posterior region of the maxilla might be problematic due to poor regional bone quality. The aim of this study was to clinically and radiologically evaluate implants which were placed in the posterior region of the maxilla (with insufficient bone height) with osteotome sinus lift technique after 19-month follow-up. MATERIALS AND METHODS: Twenty-four patients with posterior maxillary alveolar height ranging from 5 to 8 mm were chosen for this prospective study...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28295338/modified-transnasal-endoscopic-medial-maxillectomy-through-prelacrimal-duct-approach
#3
Motohiko Suzuki, Yoshihisa Nakamura, Makoto Yokota, Shinya Ozaki, Shingo Murakami
OBJECTIVE: We previously reported a modified endoscopic medial maxillectomy (modified transnasal endoscopic medial maxillectomy through prelacrimal duct approach [MTEMMPDA]) to resect inverted papilloma (IP), for which the inferior turbinate (IT) and nasolacrimal duct (ND) can be preserved. MTEMMPDA is a safe and effective method to obtain wide, straight access to the maxillary sinus (MS). However, there are few reported cases of patients who underwent MTEMMPDA, and even fewer of patients who underwent partial osteotomy of the apertura piriformis and the anterior wall of the MS...
March 14, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28286399/application-of-4-meta-adhesive-resin-to-the-occlusal-surface-during-surgery-facilitates-postoperative-occlusal-management
#4
Aoki Noriaki, Baba Junichi, Iwai Toshinori, Tohnai Iwai
PURPOSE: Orthognathic surgery is generally used to correct facial deformities and establish functional occlusion. Preoperative orthodontic treatment is important for stabilizing and establishing the postoperative occlusion. However, sufficient preoperative surgical orthodontic treatment might be sometimes difficult in patients with an abnormally shaped maxilla or mandible or severe jaw deformity. METHODS: We performed this technique over 10 patients with jaw deformities after insufficient presurgical orthodontic treatment...
March 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28286392/complications-of-midface-swing-for-management-of-juvenile-nasopharyngeal-angiofibroma
#5
Sanjay Roy Chowdhury, K Rajkumar, Tushar Deshmukh
INTRODUCTION: Access osteotomies provide direct exposure to inaccessible areas of the deep part of craniofacial skeleton for treating pathologies involving vital structures. The use of maxillary swing approach for gaining wide access to the nasopharynx, infratemporal fossa, parapharyngeal space, middle fossa of skull base. Though the maxillary swing requires transfacial incision for wide exposure but with careful handling the scar is minimum and this approach can be used in young people...
March 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28274035/stability-of-vertical-horizontal-and-angular-parameters-following-superior-repositioning-of-maxilla-by-le-fort-i-osteotomy-a-cephalometric-study
#6
Pruthvi Raj Hanthur Venkategowda, A T Prakash, E T Roy, K Sadashiva Shetty, Surbhi Thakkar, Rajkumar Maurya
INTRODUCTION: The restoration of normal jaw function, optimal facial aesthetics and long term stability are the goals of any orthognathic surgical procedures. During the last two decades, several cephalometric investigations have been reported on the skeletal changes following maxillary surgical procedures. The stability following LeFort I osteotomy and maxillary superior repositioning of the maxilla has not been studied extensively. AIM: This study was aimed at determining the surgical changes brought about by superior repositioning of the maxilla by Le Fort I osteotomy and evaluate the stability of the surgical procedure one year following surgery...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28249001/accuracy-and-reproducibility-of-virtual-cutting-guides-and-3d-navigation-for-osteotomies-of-the-mandible-and-maxilla
#7
Jonathan M Bernstein, Michael J Daly, Harley Chan, Jimmy Qiu, David Goldstein, Nidal Muhanna, John R de Almeida, Jonathan C Irish
BACKGROUND: We set out to determine the accuracy of 3D-navigated mandibular and maxillary osteotomies with the ultimate aim to integrate virtual cutting guides and 3D-navigation into ablative and reconstructive head and neck surgery. METHODS: Four surgeons (two attending, two clinical fellows) completed 224 unnavigated and 224 3D-navigated osteotomies on anatomical models according to preoperative 3D plans. The osteotomized bones were scanned and analyzed. RESULTS: Median distance from the virtual plan was 2...
2017: PloS One
https://www.readbyqxmd.com/read/28238562/evaluation-of-maxillary-sinus-after-le-fort-i-osteotomy-using-various-fixation-materials
#8
Koichiro Ueki, Kunio Yoshizawa, Akinori Moroi, Asami Hotta, Takamitsu Tsutsui, Kenichi Fukaya, Ryota Hiraide, Akihiro Takayama, Tatsuya Tsunoda, Yuki Saito, Ran Iguchi, Akihiko Kosaka, Hiroumi Ikawa
PURPOSE: The purpose of this study was to evaluate maxillary sinus and predict the factors affecting the postoperative sinus condition after Le Fort I osteotomy using various fixation materials. MATERIALS AND METHODS: The study subjects consisted of 71 patients (21 male and 50 female, 142 sides) who underwent Le Fort I osteotomy with sagittal split ramus osteotomy. The maxillary sinus bony area and the inside air area were measured in the coronal plane across the mesial aspect of the first molar perpendicular to the Frankfurt horizontal plane of a computed tomography (CT) image preoperatively and at 1 week and 1 year after surgery...
January 31, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28237652/impact-of-epinephrine-contained-in-local-anesthetic-solution-on-serum-lactate-level-during-orthognathic-surgery
#9
Hidetaka Kuroda, Gaku Kawamura, Manabu Soya, Takayuki Kitamura, Tatsuya Ichinohe, Yoshitsugu Yamada
PURPOSE: There have been many discussions of a relation between endogenous and exogenous epinephrine and hyperlactatemia. This study aimed to identify the impact of epinephrine contained in a local anesthetic solution on serum lactate levels in patients who underwent orthognathic surgery. MATERIALS AND METHODS: This study was a retrospective record review of cases of maxillary and mandibular osteotomy at the Tokyo University Hospital (Tokyo, Japan) from January 2006 through December 2014...
February 3, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28230590/modified-lateral-surgical-approach-to-the-pterygopalatine-fossa
#10
Masataka Uehara, Masaaki Sasaguri, Shunji Shiiba, Kazuhiro Tominaga
Oral cancer, especially that originates in the maxillary tuberosity, buccal mucosa, and maxillary alveolus, is apt to invade the pterygopalatine fossa, where an intraoral approach is nearly impossible. There are 2 main types of extraoral approach to the pterygopalatine fossa; the anterior approach and the lateral approach. Although the lateral approach has an advantage compared with the anterior approach in terms of cosmetics, after the operation numbness of the lower lip occurs due to the sacrifice of the mental nerve...
February 22, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28223015/surgical-management-of-ankyloses-of-the-temporomandibular-joint-by-a-piezoelectric-device
#11
Giuseppe Spinelli, Domenico Valente, Giuditta Mannelli, Mirco Raffaini, Francesco Arcuri
INTRODUCTION: Piezosurgery is commonly used in different field of craniomaxillofacial surgery; since its introduction it has become one of the widely adopted technique for performing osteotomies in orthognathic surgery, distraction osteogenesis and dentoalveolar surgery. Little has been written regarding ultrasonic system for temporomandibular joint surgery (TMJ). In this prospective study we describe the use of piezoelectric device for ankylosis of the TMJ. MATERIALS AND METHODS: We enrolled in this study 19 patients, 10 males and 9 females, mean (SD) age 24...
December 18, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28169263/comparison-of-soft-tissue-changes-in-simultaneous-maxillomandibular-distraction-with-mandibular-distraction-with-second-stage-maxillary-osteotomy
#12
S M Balaji, Preetha Balaji
BACKGROUND: The purpose of this study was to compare the frontal lip cant changes in common facial asymmetry (FA) cases after simultaneous maxillomandibular distraction osteogenesis (DO) and mandibular DO with maxillary orthognathic surgery. MATERIALS AND METHODS: Retrospective analysis of FA cases at tertiary craniofacial referral was performed. Patients of either gender with all medical imaging records and pre- and post-operative (1 year) facial photographs in natural head position were included in the study...
November 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28154745/transverse-expansion-and-stability-after-segmental-le-fort-i-osteotomy-versus-surgically-assisted-rapid-maxillary-expansion-a-systematic-review
#13
REVIEW
Thomas Starch-Jensen, Tue Lindberg Blæhr
OBJECTIVES: The objective of the present systematic review was to test the hypothesis of no difference in transverse skeletal and dental arch expansion and relapse after segmental Le Fort I osteotomy versus surgically assisted rapid maxillary expansion. MATERIAL AND METHODS: A MEDLINE (PubMed), Embase and Cochrane library search in combination with a hand-search of relevant journals was conducted by including human studies published in English from January 1, 2000 to June 1, 2016...
October 2016: Journal of Oral & Maxillofacial Research
https://www.readbyqxmd.com/read/28153564/computer-assisted-surgical-planning-and-simulation-for-unilateral-condylar-benign-lesions-causing-facial-asymmetry
#14
Chuan Lu, Dongmei He, Chi Yang, Dong Huang, Edward Ellis
OBJECTIVE: The purpose of this study was to investigate the best surgical sequence for the treatment of unilateral condylar benign lesions causing facial asymmetry by applying computer-assisted surgical planning and simulation. STUDY DESIGN: Computed tomography (CT) data from 12 patients whose maxillary cant was corrected by maintaining the vertical position of the central incisors and equally intruding the long side of the maxilla and extruding the short side were analyzed by ProPlan CMF 1...
April 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28142007/surgical-splint-design-influences-transverse-expansion-in-segmental-maxillary-osteotomies
#15
Kasper Stokbro, Esben Aagaard, Peter Torkov, Lillian Marcussen, R Bryan Bell, Torben Thygesen
PURPOSE: In segmental maxillary procedures, it is imperative to obtain as much of the planned expansion as possible. Lack of obtained expansion, in addition to late relapse after splint removal, can result in relapse of the posterior crossbite. This study investigated the influence of 2 surgical splint designs on achieving the planned transverse expansion in bimaxillary surgery with segmental maxillary procedures. MATERIALS AND METHODS: Forty-two participants were included in a retrospective observational study...
January 4, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28141644/midfacial-changes-through-anterior-maxillary-distraction-osteogenesis-in-patients-with-cleft-lip-and-palate
#16
Hiroyuki Kanzaki, Yoshimichi Imai, Tetsu Nakajo, Takayoshi Daimaruya, Akimitsu Sato, Masahiro Tachi, Youhei Nunomura, Yusuke Itagaki, Kazuaki Nishimura, Shoko Kochi, Kaoru Igarashi
Maxillary hypoplasia is a major issue in cleft lip and palate patients, and predictable surgical maxillary advancement is required. In the present study, the changes and stability of the maxilla and soft tissue profile achieved after the application of anterior maxillary distraction osteogenesis (AMDO) using intraoral expander in unilateral cleft lip and palate and isolated cleft palate patients were investigated by comparing to the Le Fort I osteotomy (LFI) and maxillary distraction osteogenesis (DO) with rigid external distraction (RED) system...
January 30, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28122898/post-operative-avascular-necrosis-of-the-maxilla-a-rare-complication-following-orthognathic-surgery
#17
Trevor A Teemul, Jean Perfettini, David O Morris, John L Russell
We present a patient with sickle cell trait who suffered avascular necrosis of the maxilla as a complication of maxillary osteotomy. Understanding the blood supply of the maxilla and how possible patient related, anaesthetic and operative factors affect it, is important in understanding how the vascularity of the maxilla can become compromised in a surgical procedure. The perioperative parameters were analysed to identify any prognostic elements. Avascular necrosis of the maxilla is a rare complication of orthognathic surgery with few cases reported in the literature...
January 24, 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28114219/physical-therapy-for-smile-improvement-after-orthognathic-surgery
#18
Sung Ok Hong, Seung-Hak Baek, Jin-Young Choi
The purpose of this study was to investigate the effect of physical therapy for smile improvement on the smile esthetics-related properties after orthognathic surgery. The samples consisted of 44 adult patients (13 males and 31 females; mean age of 22.6 years old), who had undergone LeFort I osteotomy and BSSRO by a single surgeon. After a video clip of smile education was shown to patients (see Supplemental Digital Content, Video, http://links.lww.com/SCS/A238), smile training of 5 minutes per day was started 1-month after surgery for 3 months...
March 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28111283/morphological-impact-on-patients-of-maxillomandibular-advancement-surgery-for-the-treatment-of-obstructive-sleep-apnea-hypopnea-syndrome
#19
Thibaut Beranger, Emilie Garreau, Joël Ferri, Gwenael Raoul
INTRODUCTION: The aim of this study is to evaluate the experience of patients who have benefited from maxillomandibular advancement surgery for the treatment of obstructive sleep apnea-hypopnea syndrome (OSAHS), and also the morphological modifications measured on pre- and postoperative lateral headfilms. PATIENTS AND METHODS: Twenty-three patients aged 24 to 64 (M=46.8) who had undergone bimaxillary advancement osteotomy for the treatment of OSAHS filled in a questionnaire concerning their overall satisfaction following surgery, the modification of their facial appearance as perceived by themselves and their family and friends, the change in their smile, and the slimmer and more youthful appearance of their face...
March 2017: International Orthodontics
https://www.readbyqxmd.com/read/28106695/velopharyngeal-insufficiency-after-le-fort-i-osteotomy-in-a-patient-with-undiagnosed-occult-submucous-cleft-palate
#20
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...
January 18, 2017: Journal of Craniofacial Surgery
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