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Reconstruction of mandible

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https://www.readbyqxmd.com/read/28523324/anatomical-features-and-prosthetic-considerations-of-edentulous-patients-with-mandibular-reconstruction-with-autograft-performed-more-than-40-years-ago
#1
Cătălina Murariu-Măgureanu, Cristina Teodora Preoteasa, Laura Iosif, Marina Imre, Marian Cuculescu, Elena Preoteasa
In this manuscript there are presented two cases, both with mandibular reconstruction with autograft harvested from the iliac crest, performed more than 40 years ago, but with different bone defect etiology, i.e., mandibular dysplasia and mandibular fracture, both having currently extensive tooth loss in the mandible, being in need for prosthetic rehabilitation. These cases confirm that reconstructive surgery of mandibular bone defects with autograft from iliac crest has a satisfactory long-term outcome, providing acceptable conditions for prosthetic rehabilitation...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28523085/free-bone-grafts-for-mandibular-reconstruction-in-patients-who-have-not-received-radiotherapy-the-6-cm-rule-myth-or-reality
#2
Baljeet Nandra, Tirbod Fattahi, Tim Martin, Prav Praveen, Rui Fernandes, Sat Parmar
Bony reconstruction of the mandible after surgical resection results in improved rehabilitation and aesthetics. Composite tissue transfer has transformed reconstruction, particularly in patients who have received radiotherapy. However, there is morbidity related to free tissue transfer. Free nonvascularized bone grafts have much lower morbidity. Surgeons believe that free bone grafts greater than 6.0 cm are prone to failure. The aims of this study was to assess whether bone grafts greater than 6.0 cm in length have a high risk of failure...
June 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28516962/design-of-a-customised-bridging-mandibular-prosthesis-for-complex-reconstruction-a-pilot-study
#3
A Tarsitano, S Battaglia, A Sandi, C Marchetti
The gold standard for mandibular reconstruction is universally recognised and consists of the replacement of the bony part of the mandible with a bony microvascular free flap supported by a reconstructive plate. Although this procedure is feasible and reproducible in most patients, at times poor oncological prognosis or poor performance status force surgeons to consider other reconstructive solutions. In these cases, the main alternative in reconstructing a mandibular defect is represented by bridging plates combined with soft tissue flaps...
June 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28495410/a-case-and-control-multisite-positive-controlled-prospective-study-of-the-safety-and-effectiveness-of-immediate-inferior-alveolar-nerve-processed-nerve-allograft-reconstruction-with-ablation-of-the-mandible-for-benign-pathology
#4
John R Zuniga, Fayette Williams, Daniel Petrisor
PURPOSE: This study determined whether immediate reconstruction of the inferior alveolar nerve with a long (>4.5 cm) processed nerve allograft (PNA) in conjunction with simultaneous ablation and reconstruction of the mandible would be effective in safely restoring subjective sensation and achieving functional sensory recovery. MATERIALS AND METHODS: Patients (5 to 70 yr old) requiring resection of the unilateral or bilateral mandible for benign pathology were included...
April 13, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28489209/bone-grafting-for-alveolar-ridge-reconstruction-review-of-166-cases
#5
Fued Samir Salmen, Marina Reis Oliveira, Marisa Aparecida Cabrini Gabrielli, Ana Cláudia Gabrielli Piveta, Valfrido Antonio Pereira, Mario Francisco Real Gabrielli
Objective: to investigate the predictive factors of failure in bone grafts for alveolar ridge augmentation and implant surgery. Methods: we reviewed the charts of 166 patients operated between 1995 and 2014. A total of 248 grafting procedures were performed. We submitted the data to the binomial test at 5% significance. Results: grafts to gain width of the alveolar ridge (65.32%) were more frequent than sinus lifting (p<0.0001) and the number of grafts to the posterior maxilla (48...
January 2017: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/28483229/use-of-three-dimensional-cad-cam-assisted-virtual-surgical-simulation-and-planning-in-the-pediatric-craniofacial-population
#6
Rachel Gray, Alexander Gougoutas, Vinh Nguyen, Jesse Taylor, Nicholas Bastidas
OBJECTIVE: Virtual Surgical Planning (VSP) and computer-aided design/computer-aided manufacturing (CAD/CAM) have recently helped improve efficiency and accuracy in many different craniofacial surgeries. Research has mainly focused on the use in the adult population with the exception of the use for mandibular distractions and cranial vault remodeling in the pediatric population. This study aims to elucidate the role of VSP and CAD/CAM in complex pediatric craniofacial cases by exploring its use in the correction of midface hypoplasia, orbital dystopia, mandibular reconstruction, and posterior cranial vault expansion...
June 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28469823/clinicopathologic-analysis-of-14-cases-of-odontogenic-myxoma-and-review-of-the-literature
#7
Ana-Lucia-Noronha Francisco, Thiago-Celestino Chulam, Fábio-Oliveira Silva, Diogo-Gonçalves Ribeiro, Clóvis-Antônio-Lopes Pinto, Rogério-Oliveira Gondak, Luiz-Paulo Kowalski, João Gonçalves-Filho
BACKGROUND: Odontogenic myxoma is a rare benign neoplasm that originates from odontogenic ectomesenchyme. There is no standard of care and recurrences are frequent after conservative surgical procedures. MATERIAL AND METHODS: A retrospective study conducted at a single cancer center, with analysis of medical records of all patients diagnosed with odontogenic myxoma from 1980 to 2010, along with a literature review. RESULTS: There were 14 patients with diagnosis of odontogenic myxoma (OM)...
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
#8
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/28468161/novel-treatment-planning-of-hemimandibular-hyperplasia-by-the-use-of-three-dimensional-computer-aided-design-and-computer-aided-manufacturing-technologies
#9
Muhanad M Hatamleh, Elizabeth Yeung, Jonas Osher, Chrisopher Huppa
RATIONALE AND AIM: Hemimandibular hyperplasia is characterized by an obvious overgrowth in the size of the mandible on one side, which can extend up to the midline causing facial asymmetry. Surgical resection of the overgrowth depends heavily on the skill and experience of the surgeon. This report describes a novel methodology of applying three-dimensional computer-aided-design and computer-aided-manufacturing principles in improving the outcome of surgery in 2 mandibular hyperplasia patients...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28467662/impact-of-venous-outflow-tract-on-survival-of-osteocutaneous-free-fibula-flaps-for-mandibular-reconstruction-a-14-year-review
#10
Eric I Chang
BACKGROUND: The principle reconstructive modality for segmental mandibulectomy defects is the osteocutaneous free fibula flap. Preoperative CT angiography has been recommended to assess the quality of arterial inflow to the flap and donor limb. However, the impact of the venous system on flap viability has not been explored. METHODS: A retrospective review of all patients undergoing free fibula flap mandible reconstruction was performed at a single tertiary cancer center from 2002 to 2015...
May 3, 2017: Head & Neck
https://www.readbyqxmd.com/read/28461046/prosthetic-rehabilitation-following-lateral-resection-of-the-mandible-with-a-long-cantilever-implant-supported-fixed-prosthesis-a-3-year-clinical-report
#11
Georgios Maroulakos, William W Nagy, Ayman Ahmed, Ioli I Artopoulou
This clinical report describes the prosthetic management of the surgical reconstruction of a patient after mandibular resection. Complete oral rehabilitation was achieved with a maxillary complete denture and a mandibular implant-supported fixed prosthesis with a custom titanium framework and a long unilateral cantilever.
April 28, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28459123/segmental-sandwich-osteotomy-and-tunnel-technique-for-three-dimensional-reconstruction-of-the-jaw-atrophy-a-case-report
#12
Mario Santagata, Nicola Sgaramella, Ivo Ferrieri, Giovanni Corvo, Gianpaolo Tartaro, Salvatore D'Amato
BACKGROUND: A three-dimensionally favourable mandibular bone crest is desirable to be able to successfully implant placement to meet the aesthetic and functional criteria in the implant-prosthetic rehabilitation. Several surgical procedures have been advocated for bone augmentation of the atrophic mandible, and the sandwich osteotomy is one of these techniques. The aim of the present case report was to assess the suitability of segmental mandibular sandwich osteotomy combined with a tunnel technique of soft tissue...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28454328/reconstruction-of-mandibular-defects-with-autogenous-bone-and-decellularized-bovine-bone-grafts-with-freeze-dried-bone-marrow-stem-cell-paracrine-factors
#13
Ann Kakabadze, Konstantine Mardaleishvili, George Loladze, Lia Karalashvili, Gocha Chutkerashvili, David Chakhunashvili, Zurab Kakabadze
The gold standard following segmental mandibulectomy is vascularized autologous bone graft in the form of the fibula flap. However, in bone reconstruction the use of autogenous bone does not always guarantee a successful outcome. The aim of the present investigation was to develop a novel biologically active bone (BAB) graft, and to use it for the reconstruction of large size defects of the mandible bone following tumor resection. In the first part of the present study, biologically active bone graft was developed by using human freeze-dried bone marrow stem cells (BMSCs) paracrine factors and three-dimensional bone scaffold derived from cancellous bovine bone following decellularization...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453004/implant-utilization-and-time-to-prosthetic-rehabilitation-in-conventional-and-advanced-fibular-free-flap-reconstruction-of-the-maxilla-and-mandible
#14
Richelle Chuka, Wael Abdullah, Jana Rieger, Suresh Nayar, Hadi Seikaly, Martin Osswald, Johan Wolfaardt
PURPOSE: Precisely designed jaw reconstruction rehabilitation (JRR) is important to the integrity of the jaw structure and oral functions. Advanced three-dimensional (3D) digital surgical design and simulation (SDS) techniques have the potential to reduce time to reconstructive and dental treatment completion, thereby promoting early functional oral rehabilitation. This study investigated the use of SDS in JRR procedures. MATERIALS AND METHODS: A retrospective chart review was conducted on adult head and neck tumor (HNT) participants who completed JRR treatment with a fibular free flap (FFF) reconstruction...
May 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28445371/preventing-early-stage-graft-bone-resorption-by-simultaneous-innervation-innervated-iliac-bone-flap-for-mandibular-reconstruction
#15
Lei Wang, Jian-Hua Wei, Xi Yang, Zi-Hui Yang, Mo-Yi Sun, Xiao-Bing Cheng, Li-Qun Xu, De-Lin Lei, Chen-Ping Zhang
BACKGROUND: Postoperative resorption of vascularized bone grafts jeopardizes the success of dental implant(s) and functional rehabilitation of the jaw. Recent evidence supports the crucial role of innervation in bone regeneration and turnover. METHODS: This study reports a new technique for simultaneous innervation of vascularized iliac flaps in mandibular reconstruction, through neurorrhaphy between ilioinguinal nerves, which innervate iliac bone, and inferior alveolar nerves or great auricular nerves...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445234/safe-new-approach-to-the-lingual-flap-management-in-mandibular-augmentation-procedures-the-digitoclastic-technique
#16
Roberto Pistilli, Vittorio Checchi, Gilberto Sammartino, Massimo Simion, Pietro Felice
PURPOSE: This article describes the digitoclastic technique, an innovative procedure for coronal displacement of the lingual flap. The new technique has the potential to obtain primary flap closure without surgical risks to the anatomical structures on the lingual side of the mandible. MATERIALS AND METHODS: Reconstruction of an atrophic mandible with guided tissue regeneration (guided bone regeneration) and implant placement is described, using the digitoclastic technique to displace the lingual flap coronally...
April 25, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28444096/off-label-use-of-rhbmp-2-as-bone-regeneration-strategies-in-mandibular-ameloblastoma-unicystic
#17
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/28433213/three-dimensional-surgical-modelling-with-an-open-source-software-protocol-study-of-precision-and-reproducibility-in-mandibular-reconstruction-with-the-fibula-free-flap
#18
L Ganry, J Quilichini, C M Bandini, P Leyder, B Hersant, J P Meningaud
Very few surgical teams currently use totally independent and free solutions to perform three-dimensional (3D) surgical modelling for osseous free flaps in reconstructive surgery. This study assessed the precision and technical reproducibility of a 3D surgical modelling protocol using free open-source software in mandibular reconstruction with fibula free flaps and surgical guides. Precision was assessed through comparisons of the 3D surgical guide to the sterilized 3D-printed guide, determining accuracy to the millimetre level...
April 19, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28426184/alterations-in-mandibular-morphology-associated-with-glypican-1-and-glypican-3-gene-mutations
#19
M Mian, S Ranjitkar, G C Townsend, P J Anderson
OBJECTIVES: Glypican 1 (GPC1) and glypican 3 (GPC3) are bone co-regulators that act downstream in many of the signalling pathways associated with craniosynostosis. Morphometric data from GPC-knockout mice were analysed to determine whether elimination of GPC1 and GPC3 genes would alter mandibular morphology. SETTING AND SAMPLE POPULATION: The murine model included five male and five female mandibles in each of GPC1-knockout, GPC1/GPC3-knockout and wild-type (control) groups...
April 20, 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28420035/prospective-series-of-reconstruction-of-complex-composite-mandibulectomy-defects-with-double-island-free-fibula-flap
#20
Edward I Chang, Peirong Yu
BACKGROUND: A double island free fibula (DIFF) flap can be used for reconstruction of through-and-through or complex mandibulectomy defects, but prospective studies are lacking. METHODS: Prospective analysis of all double skin paddle fibula flaps performed from 2010 to 2016. RESULTS: Overall, 16 patients underwent reconstruction with a DIFF flap (average age: 59.1 years). One patient, who underwent a DIFF flap and developed osteoradionecrosis, requiring a second flap...
April 18, 2017: Journal of Surgical Oncology
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