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Mandible reconstruction

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https://www.readbyqxmd.com/read/28099975/functional-outcome-of-cad-cam-assisted-versus-conventional-microvascular-fibular-free-flap-reconstruction-of-the-mandible-a-retrospective-study-of-30-cases
#1
Lucas M Ritschl, Thomas Mücke, Andreas Fichter, Florian D Güll, Christopher Schmid, Jean Marc Pho Duc, Marco R Kesting, Klaus-Dietrich Wolff, Denys J Loeffelbein
Background Different advantages of virtually planned and guided mandibular reconstructions have been described. Functional analyses and comparisons with conventionally reconstructed patients. Methods We retrospectively analyzed 30 cases of mandibular reconstructions that involved virtually planned or conventional microvascular, fibular free flaps that occurred between April 2011 and December 2014 at a single center. The results were also compared with a healthy cohort of 30 participants. Axiographic measurements were performed postoperatively, and uni- and multivariate regressions analyses were performed to determine the association between possible predictor variables on functional outcome...
January 18, 2017: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/28078198/multidisciplinary-approach-to-management-of-temporal-bone-giant-cell-tumor
#2
Taija K Nicoli, Riste Saat, Risto Kontio, Anna Piippo, Maija Tarkkanen, Jussi Tarkkanen, Jussi Jero
Background Giant cell tumors (GCTs) are rare osseous tumors that rarely appear in the skull. Methods We review the clinical course of a 28-year-old previously healthy woman with a complicated GCT. Results The reviewed patient presented with a middle cranial fossa tumor acutely complicated by reactive mastoiditis. Left tympanomastoidectomy was performed for drainage of the mastoiditis and for biopsies of the tumor. Due to the challenging tumor location, the patient was treated with denosumab, a fully humanized monoclonal antibody against receptor activator of nuclear factor kappa-B ligand, for 7 months, which resulted in significant preoperative tumor shrinkage...
July 2016: Journal of Neurological Surgery Reports
https://www.readbyqxmd.com/read/28063741/custom-made-fibular-cradle-plate-to-optimise-bony-height-contour-of-the-lower-border-and-length-of-the-pedicle-in-reconstruction-of-the-mandible
#3
A M C Goodson, P L Evans, H Goodrum, A W Sugar, M A Kittur
No abstract text is available yet for this article.
January 4, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28056140/benefits-and-limitations-of-entry-level-3-dimensional-printing-of-maxillofacial-skeletal-models
#4
Alex T Legocki, Andrew Duffy-Peter, Andrew R Scott
Importance: A protocol for creating exceptionally low-cost 3-dimensional (3-D) maxillofacial skeletal models does not require proficiency with computer software or intensive labor. Small and less affluent centers can produce models with little loss in accuracy and clinical utility. Objectives: To highlight the feasibility and methods of introducing in-house, entry-level additive manufacturing (3-D printing) technology to otolaryngologic craniofacial reconstruction and to describe its clinical applications and limitations, including a comparison with available vendor models...
January 5, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28052811/short-term-outcomes-of-mandibular-reconstruction-in-oncological-patients-using-a-cad-cam-prosthesis-including-a-condyle-supporting-a-fibular-free-flap
#5
Achille Tarsitano, Salvatore Battaglia, Valerio Ramieri, Piero Cascone, Leonardo Ciocca, Roberto Scotti, Claudio Marchetti
PURPOSE: Condylar reconstruction and replacement using alloplastic materials currently attracts much surgical interest. The major challenge is to functionally reconstruct the anatomical region; this is crucial in terms of correct mandibular function. The goal of the present study was to evaluate the clinical outcomes of and complications experienced by a series of oncological patients who underwent computer-aided design/computer-aided manufacturing (CAD/CAM) condylar reconstruction following resection-disarticulation of the mandible...
December 16, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28038480/intracranial-ameloblastoma-arising-from-the-maxilla-an-interdisciplinary-surgical-approach
#6
Johanna Quick-Weller, Felix Koch, Nazife Dinc, Stephanie Lescher, Peter Baumgarten, Patrick Harter, Friedrich Scheerer, Robert Sader, Volker Seifert, Gerhard Marquardt, Thomas Freiman
Background Ameloblastomas are a rare tumor entity accounting for only 10% of all odontogenic tumors. They mostly originate from the mandible. Only a few cases are known to grow aggressively and to invade the orbit, nasal cavity, or even the brain. Patient and Methods/Case Report We present the case of a 57-year-old patient who was admitted with a huge tumor involving the nasal cavity, the left maxilla, and the anterior fossa. Histologic diagnosis was made by biopsy. A combined two-stage neurosurgical maxillofacial approach was planned...
December 30, 2016: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28027175/surgical-management-of-duplication-of-the-pituitary-gland-plus-syndrome-with-epignathus-cleft-palate-duplication-of-mandible-and-lobulated-tongue
#7
Tadahide Noguchi, Tomoko Sugiyama, Ken-Ichi Sasaguri, Shigeru Ono, Kosaku Maeda, Hiroshi Nishino, Yoshinori Jinbu, Yoshiyuki Mori
A 1-day-old male infant was referred to our department for evaluation of multiple malformations in his oral cavity. He was diagnosed duplication of the pituitary gland-plus syndrome with epignathus, cleft palate, duplication of the mandible, and a lobulated tongue. A thumb-sized mass lesion was visible on the hard palate. The duplicated mandible and lower lip was fused at the midline. The alveolar ridge was protruding through a wide-cleft soft palate involving the uvula. Further examination showed a lobulated tongue, which was seen behind the duplicated part of the mandible...
December 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28011124/islanded-facial-artery-musculomucosal-flap-for-tongue-reconstruction
#8
S T Joseph, B S Naveen, T M Mohan
Reconstruction of the tongue can be achieved by means of various local, regional, and microvascular free flaps. Local flaps commonly used for tongue reconstruction include the nasolabial flap, submental flap, infrahyoid flap, and pedicled facial artery musculomucosal (FAMM) flap. The purpose of this article is to propose a technical modification to the FAMM flap for the reconstruction of small to medium-sized tongue defects post tumour excision: islanding the flap and tunnelling it from the lingual aspect of the mandible in a single-stage procedure...
December 20, 2016: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28007349/the-temporalis-muscle-flap-for-reconstruction-of-soft-palate-and-lateral-oropharyngeal-wall-after-transoral-robotic-surgery
#9
Giuseppe Meccariello, Filippo Montevecchi, Alberto Deganello, Giovanni D'Agostino, Chiara Bellini, Ermelinda Zeccardo, Claudio Vicini
Trans Oral Robotic Surgery (TORS) is a prominent surgical approach for the resection of oropharyngeal tumors without division of the lip and mandible. Some defects following TORS are large and complex enough to benefit soft-tissue coverage. The pedicled temporalis muscle flap is a versatile and reliable flap and may be a valid option to reconstruct defects of the lateral pharyngeal wall and partial soft palate.
December 19, 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28005799/clinical-characteristics-and-treatment-of-osteopetrosis-complicated-by-osteomyelitis-of-the-mandible
#10
Hai-Jiang Sun, Lei Xue, Chuan-Bin Wu, Qing Zhou
Osteopetrosis represents a heterogeneous group of rare, hereditary bone disorders with variable clinical features, and an increase in bone density. Osteomyelitis of the jaws is a significant complication of osteopetrosis. In this article, a reported patient with osteopetrosis complicated by osteomyelitis of the mandible was examined. The patient was treated with intravenous antibiotic therapy, debridement of necrotic bone and hyperbaric oxygen therapy; in addition, the authors attempted to implant the calcium sulfate and vancomycin to reconstruct the bone defect...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28005765/functional-reconstruction-in-mandibular-avulsion-injuries
#11
Yoav Leiser, Dekel Shilo, Amir Wolff, Adi Rachmiel
The present report describes the planning and surgery as well as pitfalls and management of a patient with a near total mandibular avulsion injury that was rehabilitated using three-dimensional (3D) laser printing of a titanium lower jaw. Laser-sintering involves zapping layers of powdered metal to recreate a 3D implantable skeletal defect. The process involves using either mirror imaging of the unaffected side or using archival image database of healthy individuals. A 25-year-old man presented with a gunshot injury that left him with a near total avulsed mandible...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28005744/a-new-procedure-assisted-by-digital-techniques-for-secondary-mandibular-reconstruction-with-free-fibula-flap
#12
Yao Yu, Wen-Bo Zhang, Xiao-Jing Liu, Chuan-Bin Guo, Guang-Yan Yu, Xin Peng
PURPOSE: To describe a new procedure assisted by digital techniques for secondary mandibular reconstruction with free fibula flap. METHODS: The 3-dimensional (3D) reconstruction images for vessels were used to demonstrate the vascular diameter and location, which help select the most suitable vein and artery for anastomosis. Maxillary and mandibular stone models of the patient were fabricated and a stable occlusal relationship was determined on an articulator. The 3D tooth model data were scanned using a 3D-optical measuring system, and the obtained stereolithographic (STL) data were imported to Geomagic software...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28005652/facial-nerve-preservation-during-giant-mandibular-tumor-surgery
#13
Yun Zhu, Wanlin Xu, Chenping Zhang, Wenjun Yang
Marginal mandibular branch of facial nerve is easy to be ignored and injured in patients undergoing giant mandibular tumor resections. In this article, a 30-year-old patient with a giant tumor in the left mandible, an operation of segmental mandibulectomy and reconstruction was given, and the surgery was assisted by intraoperative facial nerve monitoring. During surgery, the marginal mandibular branch of the facial nerve was detected and well preserved. The patient showed no facial function injury postoperation...
December 21, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27995119/fibular-flap-for-mandible-reconstruction-in-osteoradionecrosis-of-the-jaw-selection-criteria-of-fibula-flap
#14
Ji-Wan Kim, Jong-Hyun Hwang, Kang-Min Ahn
BACKGROUND: Osteoradionecrosis is the most dreadful complication after head and neck irradiation. Orocutaneous fistula makes patients difficult to eat food. Fibular free flap is the choice of the flap for mandibular reconstruction. Osteocutaneous flap can reconstruct both hard and soft tissues simultaneously. This study was to investigate the success rate and results of the free fibular flap for osteoradionecrosis of the mandible and which side of the flap should be harvested for better reconstruction...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27991024/-cooperation-between-the-plastic-surgery-and-the-head-neck-surgery-departments-in-the-treatment-of-unusual-cases-veszpr%C3%A3-m-hungary-2010-2015
#15
Zoltán Lóderer, József Piffkó, Károly Somlai, Gábor Bognár, Gábor Sándor
INTRODUCTION: Handling problems in the head and neck region often requires a close cooperation between allied professions, just as in the challenging cases presented by us. Cases and methodology: With the first patient, we performed a radical surgery on the left side of the face due to recidivious basal cell carcinoma, followed by reconstruction using a Type I chimeric anterolateral thigh flap (ALT), while in the case of the second patient, we carried out a radical surgery on the right side of the face due to epithelial carcinoma and reconstruction with a Type I chimeric thoracodorsal flap...
December 2016: Magyar Sebészet
https://www.readbyqxmd.com/read/27990510/mandibular-osteomyelitis-associated-with-dental-implants-a-case-series
#16
Gabriel Semel, Amir Wolff, Dekel Shilo, Sharon Akrish, Omri Emodi, Adi Rachmiel
PURPOSE: To present a series of rare and serious complications associated with endosseous implant therapy. MATERIALS AND METHODS: Five cases of mandibular osteomyelitis emerging in dental implant insertion sites are presented. In three cases, the clinical signs and symptoms of osteomyelitis occurred almost immediately following implant insertion. All cases occurred in patients with stable pre-existing medical conditions. Three of the patients were females and two were males, all of whom were in their sixth and seventh decades of life...
2016: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/27987520/-dental-implantation-and-soft-tissue-augmentation-after-ridge-preservation-in-a-molar-site-a-case-report
#17
L P Zhao, Y L Zhan, W J Hu, H J Wang, Y P Wei, M Zhen, T Xu, Y S Liu
For ideal implant rehabilitation, an adequate bone volume, optical implant position, and stable and healthy soft tissue are required. The reduction of alveolar bone and changes in its morphology subsequent to tooth extraction will result in insufficient amount of bone and adversely affect the ability to optimally place dental implants in edentulous sites. Preservation of alveolar bone volume through ridge preservation has been demonstrated to reduce the vertical and horizontal contraction of the alveolar bone crest after tooth extraction and reduce the need for additional bone augmentation procedures during implant placement...
December 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27979432/secondary-mandibular-reconstruction-for-paediatric-patients-with-long-term-mandibular-continuity-defects-a-retrospective-study-of-six-cases
#18
L Hu, X Yang, J Han, Y Wang, X Wang, M Zhu, J Liu, M Yu, C Zhang, L Xu
Paediatric patients with long-term mandibular continuity defects following segmental resection usually present severe functional and cosmetic deformities. Secondary mandibular reconstruction for these patients is very challenging. Literature reports on how to handle these patients are scarce. The aim of this study was to describe the authors' experience in handling those paediatric patients who have not undergone primary reconstruction, for whom the final goal of treatment is to restore a symmetrical facial appearance, masticatory function, and speech...
December 12, 2016: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27973958/validation-of-a-fibula-graft-cutting-guide-for-mandibular-reconstruction-experiment-with-rapid-prototyping-mandible-model
#19
Se-Ho Lim, Yeon-Ho Kim, Moon-Key Kim, Woong Nam, Sang-Hoon Kang
OBJECTIVE: We examined whether cutting a fibula graft with a surgical guide template, prepared with computer-aided design/computer-aided manufacturing (CAD/CAM), would improve the precision and accuracy of mandibular reconstruction. METHODS: Thirty mandibular rapid prototype (RP) models were allocated to experimental (N = 15) and control (N = 15) groups. Thirty identical fibular RP models were assigned randomly, 15 to each group. For reference, we prepared a reconstructed mandibular RP model with a three-dimensional printer, based on surgical simulation...
December 2016: Comput Assist Surg (Abingdon)
https://www.readbyqxmd.com/read/27966601/development-of-a-computer-aided-design-software-for-dental-splint-in-orthognathic-surgery
#20
Xiaojun Chen, Xing Li, Lu Xu, Yi Sun, Constantinus Politis, Jan Egger
In the orthognathic surgery, dental splints are important and necessary to help the surgeon reposition the maxilla or mandible. However, the traditional methods of manual design of dental splints are difficult and time-consuming. The research on computer-aided design software for dental splints is rarely reported. Our purpose is to develop a novel special software named EasySplint to design the dental splints conveniently and efficiently. The design can be divided into two steps, which are the generation of initial splint base and the Boolean operation between it and the maxilla-mandibular model...
December 14, 2016: Scientific Reports
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