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Maxillofacial reconstruction

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https://www.readbyqxmd.com/read/28529045/influence-of-preoperative-imaging-on-fibula-free-flap-harvesting
#1
R Gryseleyn, M Schlund, P Pigache, T Wojcik, G Raoul, J Ferri
INTRODUCTION: The fibula free flap (FFF) is the gold standard for the reconstruction of large maxillofacial defects. Magnetic resonance angiography (MRA) seems to supersede digital subtraction angiography (DSA) as the reference in preoperative evaluation, being non-invasive and having equivalent diagnostic results. The aim of this study was to assess the impact of preoperative MRA versus DSA on the viability of FFF and its success rate. MATERIAL AND METHODS: A total of 216 patients, who underwent mandibular or maxillary FFF reconstruction from January 1995 to January 2011, were retrospectively included in the study...
May 18, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28523086/a-14-year-review-of-craniomaxillofacial-gunshot-wounds-in-a-resource-limited-setting
#2
Olushola Amole, Otasowie Osunde, Benjamin Akhiwu, Akinwale Efunkoya, Kelvin Omeje, Taiwo Amole, Zubairu Iliyasu
This study analyzed the prevalence, clinical characteristics, and management of civilian-type craniomaxillofacial gunshot wounds (CGSWs) seen over a 14-year period in a Northern Nigerian teaching hospital. A retrospective study of all hospital records relating to CGSWs from January 2000 to December 2013 was conducted to determine the prevalence of CGSWs. Information retrieved included site of injury, type of projectile, management protocol, as well as duration of hospitalization. A total of 46 admissions for CGSWs were recorded during the period under review from a total of 2,228 maxillofacial admissions...
June 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28513412/-multidisciplinary-approach-of-facial-injuries
#3
L Dubois, R Schreurs, O Lapid, P Saeed, G F Adriaensen, F M Hoefnagels, V M de Jong
BACKGROUND: Approximately one quarter of polytrauma patients has facial injuries, which usually lead to loss of form and function. Several specialties are involved in the acute and reconstructive phases of facial injuries, such as oral and maxillofacial surgery, otorhinolaryngology, plastic surgery, ophthalmology and dentistry. CASE DESCRIPTION: A 25-year-old man with severe facial injuries was brought to the shock room after sustaining high-energy trauma. He had a panfacial fracture that required reconstruction...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28507870/intraoperative-change-in-defect-size-during-maxillary-reconstruction-using-surgical-guides-created-by-cad-cam
#4
Daiki Morita, Toshiaki Numajiri, Hiroko Nakamura, Shoko Tsujiko, Yoshihiro Sowa, Makoto Yasuda, Shigeru Hirano
Surgical osteotomy guides created by computer-aided design/computer-aided manufacturing (CAD/CAM) have been developed and are now widely used in maxillofacial reconstruction. However, there are no standard procedures for dealing with an intraoperative change in defect size. We report on a case in which we used our CAD/CAM guides to deal with an intraoperative change in defect size in a maxillary reconstruction. We planned the maxillary reconstruction using a free fibula flap because of left maxillary sinus cancer in a 73-year-old man...
April 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28504987/secondary-reconstruction-of-maxillofacial-trauma
#5
Jaime Castro-Núñez, Joseph E Van Sickels
PURPOSE OF REVIEW: Craniomaxillofacial trauma is one of the most complex clinical conditions in contemporary maxillofacial surgery. Vital structures and possible functional and esthetic sequelae are important considerations following this type of trauma and intervention. Despite the best efforts of the primary surgery, there are a group of patients that will have poor outcomes requiring secondary reconstruction to restore form and function. The purpose of this study is to review current concepts on secondary reconstruction to the maxillofacial complex...
May 12, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28483474/comparison-between-flat-panel-volume-computed-tomography-and-histologic-assessments-of-bone-invasion-of-maxillofacial-tumors-utility-of-an-instantaneous-radiologic-diagnostic-tool
#6
Heidrun Schaaf, Takwa Wahab-Göthe, Heiko Kerkmann, Philipp Streckbein, Martin Obert, Joern Pons-Kuehnemann, Melanie Ahrens, Hans-Peter Howaldt, Sameh Attia
OBJECTIVE: The aim of this study was to compare the accuracy of flat-panel volume computed tomography (fpVCT) to histopathologic evaluation of excised tumors of the jaws in the detection of the degree of tumor infiltration, the presence of tumor at the resection margins, and the sizes of lesions. STUDY DESIGN: This preliminary study included 47 patients undergoing jaw resection for tumor invasion of bone. The specimens were examined by histology and 3-dimensional fpVCT, and the parameters of bone infiltration, resection margins, and tumor size were determined...
March 24, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28479032/taking-the-endochondral-route-to-craniomaxillofacial-bone-regeneration-a-logical-approach
#7
REVIEW
Elmer C Kruijt Spanjer, Gerhard K P Bittermann, Inge E M van Hooijdonk, Antoine J W P Rosenberg, Debby Gawlitta
The current golden standard for treatment of craniomaxillofacial critical size bone defects, autologous bone grafting, is associated with several disadvantages which have prompted an increased demand for alternatives. New solutions are emerging in the form of bone tissue engineering. This involves harvesting of multipotent mesenchymal stromal cells (MSCs), after which they can be differentiated towards the osteogenic lineage mimicking intramembranous bone formation. However, translating this approach from laboratory to clinic has met with limited success...
April 8, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28474080/-assessment-of-life-quality-of-for-patients-after-tongue-reconstruction-with-radial-forearm-free-flap-anterolateral-thigh-perforator-flap-or-submental-island-flap
#8
Yang Zhao, Jing-Zhou Xiang, Fa-Yu Liu
PURPOSE: The aim of this study was to evaluate operation-related factors and quality of life (QOL) for patients after tongue reconstruction with radial forearm free flap (RFFF), anterolateral thigh perforator flap (ALT) or submental island flap (SIF). METHODS: Totally 59 patients, diagnosed as tongue carcinoma, received glossectomy and simultaneous reconstruction with free flaps including RFFF, ALT or SIF in the Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, China Medical University from October 2004 to October 2014...
February 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28469829/combination-prosthetic-design-providing-a-superior-retention-for-mid-facial-defect-rehabilitation-a-case-report
#9
Supassra Nilanonth, Prana Shakya, Natdhanai Chotprasert, Theerathavaj Srithavaj
Large maxillofacial defects from malignant tumor treatment are rarely rehabilitated by surgical reconstruction alone. Ameloblastic carcinoma, a rare aggressive odontogenic malignant tumor, requires wide surgical excision to gain a tumor-free margin. In the post-surgical defect, prosthetic rehabilitation is the treatment of choice to restore function and esthetics. Moreover, an intra-oral prosthesis such as an obturator restores speech, mastication and deglutition. Retention of the obturator is a major problem while rehabilitating large defects...
April 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28468174/the-strategy-of-delayed-reconstruction-of-the-mandible-in-war-injuries
#10
Firas Taha Ahmed, Marwa Turkey Aljeuary
The most common causes of mandibular defects are ablative surgery of benign or malignant tumors, severe trauma, inflammatory diseases, and osteoradionecrosis. War injuries are another cause for mandibular defect. Reconstruction of the mandible is considered a challenge to the maxillofacial surgeon due to the accompanying functional and cosmetic importance. The object of this article was to show the role of nonvascularized bone graft in the reconstruction of segmental defect of the mandible resulted from projectiles and its snags...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28444096/off-label-use-of-rhbmp-2-as-bone-regeneration-strategies-in-mandibular-ameloblastoma-unicystic
#11
Henrique Celestino Lima E Silva, Adonai Peixoto Cheim, Roberto Moreno, Sérgio Luis de Miranda
Jawbone reconstruction after tumor resection is one of the most challenging clinical tasks for maxillofacial surgeons. Osteogenic, osteoinductive, osteoconductive and non-antigenic properties of autogenous bone place this bone as the gold standard for solving problems of bone availability. However, the need for a second surgical site to harvest the bone graft increases significantly both the cost and the morbidity associated with the reconstructive procedures. Bone grafting gained an important tool with the discovery of bone morphogenetic proteins in 1960...
January 2017: Einstein
https://www.readbyqxmd.com/read/28416356/risk-factors-for-free-flap-failure-a-retrospective-analysis-of-881-free-flaps-for-head-and-neck-defect-reconstruction
#12
W Zhou, W-B Zhang, Y Yu, Y Wang, C Mao, C-B Guo, G-Y Yu, X Peng
The aim of this study was to identify the risk factors for free flap failure after head and neck reconstructive surgery. The data of 881 consecutive patients who underwent free flap surgery at the Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, between January 2013 and November 2016, were reviewed retrospectively. All surgeries were performed by a single head and neck surgical team. Patient demographic and surgical data that may have an influence on free flap outcomes were recorded...
April 14, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28409207/the-precise-repositioning-instrument-for-genioplasty-and-a-three-dimensional-printing-technique-for-treatment-of-complex-facial-asymmetry
#13
Lin Wang, Dan Tian, Xiumei Sun, Yanju Xiao, Li Chen, Guomin Wu
BACKGROUND: Facial asymmetry is very common in maxillofacial deformities. It is difficult to achieve accurate reconstruction. With the help of 3D printing models and surgical templates, the osteotomy line and the amount of bone grinding can be accurate. Also, by means of the precise repositioning instrument, the repositioning of genioplasty can be accurate and quick. In this study, we present a three-dimensional printing technique and the precise repositioning instrument to guide the osteotomy and repositioning, and illustrate their feasibility and validity...
April 13, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28405581/angiogenesis-in-newly-regenerated-bone-by-secretomes-of-human-mesenchymal-stem-cells
#14
Wataru Katagiri, Takamasa Kawai, Masashi Osugi, Yukiko Sugimura-Wakayama, Kohei Sakaguchi, Taku Kojima, Tadaharu Kobayashi
BACKGROUND: For an effective bone graft for reconstruction of the maxillofacial region, an adequate vascular network will be required to supply blood, osteoprogenitor cells, and growth factors. We previously reported that the secretomes of bone marrow-derived mesenchymal stem cells (MSC-CM) contain numerous growth factors such as insulin-like growth factor (IGF)-1, transforming growth factor (TGF)-β1, and vascular endothelial growth factor (VEGF), which can affect the cellular characteristics and behavior of regenerating bone cells...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28347627/simulation-guided-navigation-for-vector-control-in-pediatric-mandibular-distraction-osteogenesis
#15
Giovanni Badiali, Fabrizio Cutolo, Andrea Roncari, Claudio Marchetti, Alberto Bianchi
AIM: Navigation technology has given surgeons the capacity to know precisely where their instruments are during surgery, and simulation-guided navigation is a surgical method which is based on the use of navigation technology linked to 3D virtual surgery simulation. The aim of the present study was to evaluate the absolute accuracy of simulation-guided navigation as an aid to reproduce the planned position of the distraction device vector in pediatric mandibular distraction osteogenesis...
February 14, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28337459/maxillofacial-prosthesis-in-dentofacial-traumas-a-retrospective-clinical-study-and-introduction-of-new-classification-method
#16
Edoardo Brauner, Giorgio Pompa, Alessandro Quarato, Sara Jamshir, Francesca De Angelis, Stefano Di Carlo, Valentino Valentini
Background. Maxillofacial trauma represents a field of common interest as regards both the maxillofacial surgery and prosthodontics, especially for the functional and aesthetic stomatognathic rehabilitation. This condition necessitates relationship between maxillofacial surgeon and prosthodontist, to achieve the ultimate treatment goal. Purpose. The purpose of this study is to make predictable patients outcomes classifying their clinical data, using certain parameters and introducing a new classification method...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28323814/three-dimensional-evaluation-of-maxillary-sinus-septa-for-implant-placement
#17
Eliza Dragan, Guillaume A Odri, Gabriel Melian, Danisia Haba, Raphael Olszewski
BACKGROUND: The aim of our study was to investigate, in 3 dimensions, the maxillary sinus septa as an alternative site for dental implant placement to avoid sinus lift procedures. MATERIAL AND METHODS: We selected 100 dentate and 100 edentate patients with the presence of a maxillary sinus septum by reviewing a larger cone beam computer tomography (CBCT) database from the Department of Oral and Maxillofacial Surgery at Cliniques Universitaires Saint Luc in Bruxelles, Belgium...
March 21, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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
#18
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/28318927/classical-versus-custom-orbital-wall-reconstruction-selected-factors-regarding-surgery-and-hospitalization
#19
Rafał Zieliński, Marta Malińska, Marcin Kozakiewicz
PURPOSE: Nowadays, in orbital wall reconstruction, maxillofacial surgeons have the possibility to treat patients in modern ways such as with individual implants. Nevertheless, conventional treatment including standard titanium mesh shaped during the surgical procedure is also widely used. The aim of this study was to compare the above methods of orbital wall reconstructions. MATERIALS AND METHODS: In the first group (39 cases), patients were treated by means of computer-aided design/computer-aided manufacturing (CAD/CAM) milled individual implants made of ultra-high-molecular-weight polyethylene, dioxide zirconium and rapid prototyping titanium mesh pre-bent on an ABS model made by a three-dimensional (3D) printer...
February 17, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28318573/ophthalmic-outcomes-of-fractured-zygomas
#20
R J McGalliard, J Kimpton, N M H McLeod
In patients with fractures of the zygomatic complex, computed tomography (CT) often identifies extensive defects in the orbital floor. Some surgeons recommend routine exploration and repair of these defects during repair of the zygoma, while others advocate a more selective approach, but there is a paucity of evidence either way. We report a retrospective case series of 50 patients who had open reduction and internal fixation of zygomatic fractures by a single surgeon in the maxillofacial department at the John Radcliffe Hospital, Oxford, between 2011and 2014...
March 16, 2017: British Journal of Oral & Maxillofacial Surgery
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