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Mandibular reconstruction

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https://www.readbyqxmd.com/read/28713738/three-dimensional-planning-and-reconstruction-of-the-mandible-in-children-with-craniofacial-microsomia-type-iii-using-costochondral-grafts
#1
Omri Emodi, Yair Israel, Michal Even Almos, Dror Aizenbud, John A Van Aalst, Adi Rachmiel
BACKGROUND: In craniofacial microsomia (CFM) Type III patients, autogenous costochondral grafts (CCG) are conventionally used for the reconstruction of the ramus and condyle. The aim of this study was to describe the use of CCG in children with CFM in terms of outcomes, growth patterns, and complications. MATERIALS AND METHODS: This is a retrospective study of nine, aged 4-12 years, patients with CFM Type III, who underwent reconstruction of the mandibular ramus condyle unit by CCG...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28708658/condyle-head-reimplantation-combined-with-vascularized-free-flap-for-mandibular-reconstruction
#2
Jun-Yi Zhu, Hai-Xiao Zou, Hui-Min Li, Wei Wang, Jun Jia
Due to the anatomic and functional complexity, reconstruction of the condylar process after mandibular tumor extirpation remains a surgical challenge. The aim of this study was to present the results and experience of condyle head reimplantation combined with vascularized free flap for mandibular reconstruction in our institution. In the current study, the authors evaluated the clinical features of condyle head reimplantation combined with vascularized free flap for mandibular reconstruction in 5 patients with benign mandibular intraosseous lesions from December 2013 to March 2015 in our institution...
July 13, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28708475/prevalence-and-length-of-the-anterior-loop-of-the-inferior-alveolar-nerve-in-iranians
#3
Mahsa Shariati, Maryam Rastegar Moghddam, Zeinab Davoudmanesh, Nasim Azizi, Vahid Rakhshan
The anterior loop of the inferior alveolar nerve is a sensitive anatomical feature which should be taken into account during installing dental implants anterior to the mental foramen. Since results regarding its prevalence and length are controversial, this study was conducted. A total of 452 mandible quadrants of 234 patients (age: 50.1±13.3 years, 113 males, 121 females) were studied using cone-beam computerized tomography (CBCT). After reconstructing axial, frontal, and sagittal slices, the region between the most anterior point on the mental foramen and the most anterior part of the mandibular nerve was inspected for signs of anterior loop presence...
July 14, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28704637/evaluation-of-the-mandibular-lingual-canal-and-anterior-loop-length-to-minimize-complications-associated-with-anterior-mandibular-surgeries-in-the-taiwanese-population-a-cone-beam-computed-tomography-study
#4
Chih-Yang Kung, Yuan-Min Wang, Chiu-Po Chan, Yuh-Ren Ju, Whei-Lin Pan
PURPOSE: This retrospective study evaluated the localization, incidence, and dimensions of the mandibular lingual canal and the anterior loop in the Taiwanese population using the simulation and visual interpretation of cone-beam computed tomography to minimize complications during symphysis block surgical procedures. MATERIALS AND METHODS: The sample population consisted of 215 patients (105 men and 110 women; mean age, 57 yr). The median lingual canal, symphysis bone thickness, and anterior loop length were defined and calculated using cone-beam computed tomography and 3-dimensional reconstructed images...
June 23, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28700034/application-of-endoscopy-to-treat-mandibular-keratocystic-odontogenic-tumors
#5
Z Gao, Q W Ni, W Gao, Y P Liu, Q Zhang
The aim of this study was to evaluate the feasibility of endoscopy to remove keratocystic odontogenic tumors (KCOTs) with virtual 3D mandibular images. Fifteen patients (mean age, 40.27±14.58 years) who underwent endoscopic mandibular KCOT enucleation between May 2009 and October 2009 were included. Virtual 3D mandibular reconstructions derived from computed tomography (CT) imaging were generated for all patients. Recurrence and pathological fracture were evaluated as the primary outcome variables at 1 and 12 months after operation...
July 10, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28697350/extended-karapandzic-flap-technique-for-reconstruction-of-lower-lip-and-chin-defect
#6
Emil Dediol, Igor Čvrljević, Marijan Dobranić, Vedran Uglešić
PURPOSE: Near total defect of the lower lip adjacent to the chin remains a reconstructive challenge for surgeons in function and esthetics. The objective of this study was to present a modified extended Karapandzic technique for reconstruction of near total defects of the lower lip adjacent with the chin. MATERIALS AND METHODS: From 2000 to 2013, patients with lip cancer or oral cavity cancer who required subtotal lower lip and chin resection and subsequently underwent reconstruction with an extended Karapandzic flap were included in this retrospective study...
June 23, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28697347/immediate-reconstruction-and-dental-rehabilitation-of-segmental-mandibular-defects-description-of-a-novel-technique
#7
Salam O Salman, Rui P Fernandes, Sundeep R Rawal
The aim of this report is to present a new technique using current technologic advances for immediate reconstruction and dental rehabilitation of segmental mandibular defects with a screw-retained prosthesis. One case is reviewed and a detailed review of surgical and prosthetic techniques used is presented.
June 23, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28692502/reconstruction-of-zygomaticomaxillary-buttress-with-mandibular-ramus-bone-graft-in-atrophic-maxillary-fracture
#8
Gabriel Mulinari-Santos, Sormani Queiroz, João Paulo Bonardi, Valthierre Nunes Lima, Juliana Zorzi Coléte, Francisley Ávila Souza, Idelmo Rangel Garcia-Júnior, Leonardo Perez Faverani
No abstract text is available yet for this article.
July 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28690926/razanandrongobe-sakalavae-a-gigantic-mesoeucrocodylian-from-the-middle-jurassic-of-madagascar-is-the-oldest-known-notosuchian
#9
Cristiano Dal Sasso, Giovanni Pasini, Guillaume Fleury, Simone Maganuco
Razanandrongobe sakalavae Maganuco, Dal Sasso & Pasini, 2006 is a large predatory archosaur from the Middle Jurassic (Bathonian) of the Mahajanga Basin, NW Madagascar. It was diagnosed on the basis of teeth and a fragmentary maxilla, but its affinities were uncertain. Here we describe new cranial remains (above all, an almost complete right premaxilla and a caudally incomplete left dentary) that greatly improve our knowledge on this enigmatic species and reveal its anatomy to be crocodylomorph. The right premaxilla indicates that the rostrum was deep, wide, and not pointed; it bears five teeth that are sub-vertical and just slightly curved lingually; the mesial teeth are U-shaped in cross-section and have serrated carinae on the lingual side; the aperturae nasi osseae (external bony nares) are confluent and face rostrally; and there is no lateral groove at the premaxillomaxillary suture for reception of a hypertrophied lower caniniform tooth...
2017: PeerJ
https://www.readbyqxmd.com/read/28688869/ankylosis-of-temporomandibular-joints-after-mandibular-distraction-osteogenesis-in-patients-with-nager-syndrome-report-of-two-cases-and-literature-review
#10
REVIEW
Cheng Chun Wu, Daisuke Sakahara, Keisuke Imai
Nager syndrome, also known as Nager acrofacial dysostosis, was first described by Nager and de Reynier in 1948. The patients commonly present with micrognathia, and a preventive tracheostomy is necessary when there are symptoms of upper airway obstruction. Mandibular distraction osteogenesis is considered as an effective procedure, which not only improves micrognathia but also minimizes the chances of tracheostomy. However, mandibular distraction osteogenesis has some complications such as relapse, teeth injury, infection, and injury of the temporomandibular joints (TMJs)...
February 7, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28688686/hardware-complications-in-oromandibular-defects-comparing-scapular-and-fibular-based-free-flap-reconstructions
#11
Gordon F Z Tsang, Han Zhang, Christopher Yao, Mirko Kolarski, Patrick J Gullane, Jonathan C Irish, Dale H Brown, Douglas B Chepeha, David P Goldstein, Ralph W Gilbert, John R de Almeida
BACKGROUND: Despite improvements in surgical technique and technology, hardware complications occur relatively frequently. This study analyzes hardware complications in patients undergoing oromandibular reconstruction using scapular (SFF) or fibular (FFF) free flaps. METHODS: Retrospective data for 178 patients was obtained (1999-2014) at University Hospital Network (Toronto, Canada). Univariable and multivariable analyses were performed to identify risk factors for hardware complications...
August 2017: Oral Oncology
https://www.readbyqxmd.com/read/28688540/management-of-the-condyle-following-the-resection-of-tumours-of-the-mandible
#12
L Wang, K Liu, Z Shao, Z-J Shang
The aim of this study was to assess the management of the condyle during the restoration of mandibular defects following tumour resection. A total of 41 patients who underwent simultaneous tumour resection and reconstruction with vascularized iliac myocutaneous flaps for mandibular defects, from September 2010 to October 2014, were included. These patients were divided into three groups: group 1, condyle preserved; group 2, condyle sacrificed; group 3, condyle frozen. Patients were followed up at 1, 3, 6, and 12 months for the evaluation of appearance, occlusion, and speech...
July 5, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28688157/the-application-of-3-dimensional-printing-for-preoperative-planning-in-oral-and-maxillofacial-surgery-in-dogs-and-cats
#13
Jenna N Winer, Frank J M Verstraete, Derek D Cissell, Steven Lucero, Kyriacos A Athanasiou, Boaz Arzi
OBJECTIVE: To describe the application of 3-dimensional (3D) printing in advanced oral and maxillofacial surgery (OMFS) and to discuss the benefits of this modality in surgical planning, student and resident training, and client education. STUDY DESIGN: Retrospective case series. ANIMALS: Client-owned dogs (n = 28) and cats (n = 4) with 3D printing models of the skulls. METHODS: The medical records of 32 cases with 3D printing prior to major OMFS were reviewed...
July 8, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28682875/the-use-of-3d-printed-titanium-mesh-tray-in-treating-complex-comminuted-mandibular-fractures-a-case-report
#14
Junli Ma, Limin Ma, Zhifa Wang, Xiongjie Zhu, Weijian Wang
RATIONALE: Precise bony reduction and reconstruction of optimal contour in treating comminuted mandibular fractures is very difficult using traditional techniques and devices. The aim of this report is to introduce our experiences in using virtual surgery and three-dimensional (3D) printing technique in treating this clinical challenge. PATIENT CONCERNS: A 26-year-old man presented with severe trauma in the maxillofacial area due to fall from height. DIAGNOSIS: Computed tomography images revealed middle face fractures and comminuted mandibular fracture including bilateral condyles...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28672137/mandibular-rami-implant-a-new-approach-in-mandibular-reconstruction
#15
Amir Jalal Abbasi, Abbas Azari, Simin Z Mohebbi, Arezoo Javani
PURPOSE: The mandible is an essential esthetic and functional component of the lower third of the face and its reconstruction has been always a challenge, especially after severe post-traumatic injuries. The purpose of the present report was to introduce a new approach of mandibular reconstruction in a patient who had lost the entire mandible except for the rami after being severely injured in a blast. MATERIALS AND METHODS: A new approach using a titanium mandibular rami implant technique was applied using computer-aided 3-dimensional virtual planning and rapid prototyping technology...
June 12, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28669310/comparing-cancellous-bone-volume-of-the-manubrium-to-iliac-crest-in-fresh-cadavers
#16
Aaron Smith, Sarah Kortebein, Anas Eid, John Boughter, Nathan Cary, Jeffrey Brooks, Merry Sebelik
Objective The iliac crest is the gold standard for cancellous bone grafting. This site is distant from head and neck reconstruction and may lead to significant postoperative morbidity. We propose an alternative harvest site within the head and neck with potentially less mobility deficits, the manubrium. Study Design Fresh-frozen cadaveric study. Setting Gross anatomy laboratory. Subjects and Methods Access to 18 cadavers was granted from the Medical Education and Research Institute in Memphis, Tennessee. The anterior iliac crests were exposed and H-type osteotomies performed...
July 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28655500/finite-element-design-and-optimization-of-a-three-dimensional-tetrahedral-porous-titanium-scaffold-for-the-reconstruction-of-mandibular-defects
#17
Danmei Luo, Qiguo Rong, Quan Chen
Reconstruction of segmental defects in the mandible remains a challenge for maxillofacial surgery. The use of porous scaffolds is a potential method for repairing these defects. Now, additive manufacturing techniques provide a solution for the fabrication of porous scaffolds with specific geometrical shapes and complex structures. The goal of this study was to design and optimize a three-dimensional tetrahedral titanium scaffold for the reconstruction of mandibular defects. With a fixed strut diameter of 0...
June 24, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28648958/use-of-a-three-dimensional-custom-made-porous-titanium-prosthesis-for-mandibular-body-reconstruction
#18
Q Qassemyar, N Assouly, S Temam, F Kolb
The progress made in recent years in the field of head and neck bone reconstruction is directly related to technological advancements made in computer-aided design and manufacturing (CAD/CAM) and three-dimensional printing in particular. Today these technologies are mainly used in mandibular reconstruction to manufacture aids for harvesting and shaping bone flaps. However problems remain when addressing patients with a contraindication to microsurgery who need extensive bone reconstruction. For these patients who cannot benefit from vascularized bone grafts, surgeons have to find alternative solutions aimed at maintaining best function and aesthetics...
June 22, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28642193/unusual-x-ray-finding-after-mandibular-reconstruction
#19
H Zrounba, E Lanthemann, M Broome
No abstract text is available yet for this article.
June 19, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28642188/costal-graft-as-a-support-for-bone-regeneration-after-mandibular-juvenile-ossifying-fibroma-resection-an-unusual-case-report
#20
F Fauvel, R Pace, F Grimaud, F Marion, P Corre, B Piot
Spontaneous regeneration of bone tissue after mandibular resection is rare in adults, although it does often take place in children. Periosteum conservation appears to play a major role in this healing process. We here report regarding a 5-year-old boy who exhibited a large mandibular trabecular juvenile ossifying fibroma. The lesion was treated by mandibulectomy, with careful preservation of the periosteal layer and immediate reconstruction with a costal graft by an intraoral approach. Monitoring over the course of a year revealed spontaneous mandibular regeneration, and it allowed for a series of measurements of the graft to be made...
June 19, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
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