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Journal of Cranio-maxillo-facial Surgery

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https://www.readbyqxmd.com/read/28529103/the-importance-of-lymph-node-ratio-for-locoregional-recurrence-of%C3%A2-squamous-cell-carcinoma-of-the-tongue
#1
Ali-Farid Safi, Andrea Grandoch, Hans-Joachim Nickenig, Joachim E Zöller, Matthias Kreppel
INTRODUCTION: Locoregional recurrence plays a key role in treatment failure of patients with squamous cell carcinoma of the tongue. In a large amount of studies lymph node ratio could be demonstrated as a promising parameter to stratify risk of patients with oral cavity cancer. However data on the influence of lymph node ratio on locoregional recurrence of tongue squamous cell carcinoma is very rare. MATERIAL AND METHODS: Retrospective chart review of 130 patients with treatment naive squamous cell carcinoma of the tongue...
April 22, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28529102/comparative-study-of-three-kinds-of-fibula-cutting-guides-in-reshaping-fibula-for-the-reconstruction-of-mandible-an-accuracy-simulation-study-in%C3%A2-vitro
#2
Zhiwei Dong, Bei Li, Rui Xie, Qin Wu, Li Zhang, Shizhu Bai
OBJECTIVES: In order to get predictable reassembling and higher accuracy in the reconstruction of the mandible, we designed three kinds of fibula cutting guides: (1) Two-edge wide groove guide (WGG); (2) Two-edge narrow groove guide (NGG); and (3) One-edge guide (OEG). The purpose of this study was to compare the accuracy of fibula remodelling using the three kinds of fibula cutting guides above in a simulation procedure in vitro. MATERIALS AND METHODS: Cutting and reshaping of fibula analogs were guided by the three kinds of guides mentioned above...
April 22, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28527564/prospective-comparison-of-perioperative-antibiotic-management-protocols-in-oncological-head-and-neck-surgery
#3
Alexander K Bartella, Mohammad Kamal, Jan Teichmann, Anita Kloss-Brandstätter, Timm Steiner, Frank Hölzle, Bernd Lethaus
OBJECTIVES: The adequate perioperative antibiotic prophylaxis in head and neck cancer surgery is an important and easy applicable tool to decrease nosocomial morbidity and mortality by reducing the rate of infections. In the study a strictly perioperative antibiosis is compared with an extended postoperative prophylactic antibiosis. We aim to clarify the value of postoperative prophylactic antibiosis for the recovery and clinical course of patients. MATERIAL AND METHODS: In this prospective study 75 consecutive patients, who underwent major oncological head and neck surgery were included and divided in three groups, each containing 25 patients...
April 20, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28526211/the-orbit-first-a-novel-surgical-treatment-protocol-for-secondary-orbitozygomatic-reconstruction
#4
Ruud Schreurs, Leander Dubois, Alfred G Becking, Thomas J J Maal
A novel surgical treatment sequence for secondary orbitozygomatic complex (OZC) reconstruction is described. Orbital reconstruction is performed before OZC repositioning. A surgical plan is made: the affected OZC is virtually osteotomized and aligned with a mirrored model of the unaffected OZC. A patient-specific implant (PSI) is designed for orbital reconstruction. Screw holes from the primary reconstruction are used for fixation. Primary screw hole positions at the repositioned OZC are embedded in the design, to guide OZC repositioning...
April 20, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28479032/taking-the-endochondral-route-to-craniomaxillofacial-bone-regeneration-a-logical-approach
#5
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/28479031/the-effect-of-early-fusion-of-the-spheno-occipital-synchondrosis-on-midface-hypoplasia-and-obstructive-sleep-apnea-in-patients-with-crouzon-syndrome
#6
Caroline Driessen, Bianca F Rijken, Priya N Doerga, Marjolein H Dremmen, Koen F Joosten, Irene M Mathijssen
INTRODUCTION: The investigators hypothesized that patients with Crouzon syndrome and premature fusion of the spheno-occipital synchondrosis (SOS) more often have, or have more severe midface hypoplasia and obstructive sleep apnea (OSA). METHODS: A prospective cohort study was performed among patients with Crouzon syndrome to analyze SOS closure, midface hypoplasia represented by the sella-nasion angle (SNA) and OSA. RESULTS: Forty patients were included in whom the OSA-prevalence was 65%...
April 8, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28501454/masseteric-nerve-for-gracilis-muscle-re-innervation-in-unilateral-facial-palsy-impact-on-quality-of-life
#7
B Bianchi, A Ferri, V Poddi, M Bergonzani, G Pedrazzi, S Ferrari, E Sesenna
BACKGROUND: Unilateral established or congenital facial palsies are usually treated with neuromuscular transplantation to reanimate the impaired side of the face. One of the most debated points is the motor nerve to choose for the reinnervation of the transplant. Contra-lateral healthy facial nerve is usually preferred, but in selected cases motor nerve to masseter is considered a valuable option. However only a few clinical studies focused on quality of life in this subset of patients are available in literature...
April 7, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28501453/is-fine-needle-aspiration-a-reliable-tool-in-the-diagnosis-of-malignant-salivary-gland-tumors
#8
Francisco Ramírez-Pérez, Raúl González-García, Cristina Hernández-Vila, Florencio Monje-Gil, Luis Ruiz-Laza
PURPOSE: The purpose of the present study was to establish the reliability of fine needle aspiration (FNA) in the diagnosis of malignant salivary gland tumors in our population and to compare our results with those of other authors. MATERIAL AND METHODS: This was a retrospective study of clinical data from 172 patients, 153 parotid tumors and 19 submandibular tumors who underwent preoperative FNA between January 2004 and December 2013. Sensitivity, specificity, positive and negative predictive values of FNA for the preoperative diagnosis of malignancy were analyzed...
April 7, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28465028/the-technique-for-3d-printing-patient-specific-models-for-auricular-reconstruction
#9
Roberto L Flores, Hannah Liss, Samuel Raffaelli, Aiza Humayun, Kimberly S Khouri, Paulo G Coelho, Lukasz Witek
PURPOSE: Currently, surgeons approach autogenous microtia repair by creating a two-dimensional (2D) tracing of the unaffected ear to approximate a three-dimensional (3D) construct, a difficult process. To address these shortcomings, this study introduces the fabrication of patient-specific, sterilizable 3D printed auricular model for autogenous auricular reconstruction. METHODS: A high-resolution 3D digital photograph was captured of the patient's unaffected ear and surrounding anatomic structures...
April 6, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28462781/a-new-approach-to-nasomaxillary-complex-type-of-nasal-bone-fracture-clip-operation
#10
Gyu Sik Jung, Joon Hyun Kwon, Jeong Woo Lee, Jung Dug Yang, Ho Yun Chung, Byung-Chae Cho, Kang Young Choi
PURPOSE: Nasal bone fractures comprise almost 40% of all facial injuries. Most are initially reduced using closed reduction. This study introduces a newly developed method, the clip operation via endonasal approach. MATERIALS AND METHODS: The operation was performed in these patients by a single surgeon extensively experienced in facial bone fractures. An absorbable mesh plate made into a clip was used for fixation after open reduction via the endonasal approach...
April 6, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28462782/regeneration-of-subcutaneous-tissue-engineered-mandibular-condyle-in-nude-mice
#11
Feiyu Wang, Yihui Hu, Dongmei He, Guangdong Zhou, Xiujuan Yang, Edward Ellis
PURPOSE: To explore the feasibility of regenerating mandibular condyles based on cartilage cell sheet with cell bone-phase scaffold compared with cell-biphasic scaffolds. MATERIALS AND METHODS: Tissue-engineered mandibular condyles were regenerated by the following: 1) cartilage cell sheet + bone-phase scaffold (PCL/HA) seeded with bone marrow stem cells (BMSCs) from minipigs (cell sheet group), and 2) cartilage phase scaffold (PGA/PLA) seeded with auricular chondrocytes + bone-phase scaffold seeded with BMSCs from minipigs (biphasic scaffold group)...
April 4, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28457825/osteosynthesis-of-partial-rib-osteotomy-in-a-miniature-pig-model-using-human-standard-sized-magnesium-plate-screw-systems-effect-of-cyclic-deformation-on-implant-integrity-and-bone-healing
#12
Benoit Schaller, Nikola Saulacic, Stefan Beck, Thomas Imwinkelried, Edwin Wei Yang Liu, Ken Nakahara, Willy Hofstetter, Tateyuki Iizuka
Magnesium alloys are candidates for resorbable material in bone fixation. However, the degradation and performance of osteosynthesis plate/screw systems in vivo, under cyclic deformation, is unknown. We evaluated the outcomes of human standard-sized magnesium plate/screw systems with or without plasma-electrolytic surface modifications in a miniature pig rib model. Of a total of 14 minipigs, six were implanted with coated magnesium WE43 six-hole plates/screws, six received magnesium uncoated plates/screws, and two received titanium osteosynthesis systems...
April 4, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28457824/surgical-correction-of-mandibular-hypoplasia-in-hemifacial-microsomia-a-retrospective-study-in-39-patients
#13
H Bertin, J Mercier, A Cohen, J Giordanetto, N Cohen, S H Lee, J P Perrin, P Corre
PURPOSE: Repair of the mandibular deformity in hemifacial microsomia (HFM) remains controversial, and there is scant information in the literature regarding the late outcomes. The aim of this study was to evaluate architectural and aesthetic long-term outcomes for primary mandibular surgery in patients with HFM. MATERIALS AND METHODS: Thirty-nine patients with types II and type III HFM were included in this retrospective study. Depending on the nature of the mandibular deformity, patients were treated using a costochondral graft (CCG) or a vertical ramus osteotomy (VRO)...
March 30, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28454666/three-dimensional-surface-scanners-compared-with-standard-anthropometric-measurements-for-head-shape
#14
Caroline A A Beaumont, Paul G M Knoops, Alessandro Borghi, N U Owase Jeelani, Maarten J Koudstaal, Silvia Schievano, David J Dunaway, Naiara Rodriguez-Florez
Three-dimensional (3D) surface imaging devices designed to capture and quantify craniofacial surface morphology are becoming more common in clinical environments. Such scanners overcome the limitations of two-dimensional photographs while avoiding the ionizing radiation of computed tomography. The purpose of this study was to compare standard anthropometric cranial measurements with measurements taken from images acquired with 3D surface scanners. Two 3D scanners of different cost were used to acquire head shape data from thirteen adult volunteers: M4D scan and Structure Sensor...
March 29, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28446370/microcarrier-culture-enhances-osteogenic-potential-of-human-periodontal-ligament-stromal-cells
#15
Alina Čebatariūnienė, Akvilė Jarmalavičiūtė, Virginijus Tunaitis, Alina Pūrienė, Algirdas Venalis, Augustas Pivoriūnas
Regeneration of periodontal tissue represents a major challenge to modern tissue engineering, since cell-based therapies require large amounts of periodontal ligament stromal cells (PLSC), which can be obtained only by in vitro expansion. Ideally, the period of the in vitro expansion should be optimized for the generation of large enough numbers of pre-specified progenitor cells ready to contribute to the restoration of periodontal tissues. In the present study, we used a commercially available, three-dimensional culturing platform and alginate microcarrier cell culture system for the propagation of human PLSCs, which were derived using the explant outgrowth method...
March 29, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28446369/effect-of-occlusal-plane-correction-on-lip-cant-in-two-jaw-orthognathic-surgery-a-three-dimensional-analysis
#16
Christian Freudlsperger, Thomas Rückschloß, Oliver Ristow, Jens Bodem, Steffen Kargus, Robin Seeberger, Michael Engel, Jürgen Hoffmann, Christian Mertens
INTRODUCTION: The aim of the present study was to evaluate the impact of canting correction in occlusal plane (OP) on the change of lip cant (LC) using three-dimensional (3D) photogrammetry in combination with cone-beam computed tomographic (CBCT) scans in class III asymmetric patients. MATERIALS AND METHODS: Fourteen asymmetric patients with exclusively skeletal class III malocclusion undergoing two-jaw surgery were included. All patients received 3D-photogrammetry and CBCT scans before (T1) and after orthognathic surgery (T2)...
March 29, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28476356/an-italian-multicentre-experience-in-endoscopic-endonasal-treatment-of-congenital-choanal-atresia-proposal-for-a-novel-classification-system-of-surgical-outcomes
#17
Apostolos Karligkiotis, Paolo Farneti, Stefania Gallo, Alessandro Pusateri, Francesco Zappoli-Thyrion, Vittorio Sciarretta, Fabio Pagella, Paolo Castelnuovo, Ernesto Pasquini
OBJECTIVE: The purposes of this study were to report our experience with endoscopic treatment of choanal atresia (CA), to illustrate our surgical technique and analyse the different factors that may affect outcomes. MATERIAL AND METHODS: A retrospective review was performed of patients affected by congenital CA and treated between June 1996 and November 2013 at three referral centres which follow a uniform policy. RESULTS: Eighty-four patients with CA (55 unilateral and 29 bilateral), aged between one day and 76 years (mean, 13 years) were included...
March 28, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28434829/use-of-cutting-guides-during-craniosynostosis-sequelae-surgery-a-comparative-study-between-computer-assisted-planning-and-post-operative-results
#18
Chrystelle Queiros, Aline Joly, Arnaud Paré, Antoine Listrat, Nadine Travers, Dominique Goga, Boris Laure
BACKGROUND: The authors compared results of craniofacial reconstruction surgery using cutting guides with planned reconstruction on patients presenting craniosynostosis surgery sequelae. METHODS: This is a retrospective study performed on seven patients who had undergone craniofacial reconstructive surgery in University Hospital Center of Tours (France) in 2015. Patients had long-term sequelae of trigonocephaly and anterior plagiocephaly surgery. 3D computer model was constructed, based on CT scans and used for surgical planning...
March 28, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28438395/motivation-for-orthognathic-treatment-and-anticipated-satisfaction-levels-a-two-centre-cross-national-audit
#19
Raphael Patcas, Susan J Cunningham, Justin Shute, Timothy Lloyd, Joachim A Obwegeser, Lida Arjomand, Sujata Sharma
PURPOSE: This audit investigated factors which motivate patients to seek orthognathic treatment, assessed how confident patients were that they would be satisfied with the outcome of treatment, and explored possible influencing factors. MATERIALS AND METHODS: Questionnaires were distributed to pre-surgical patients at two centres (United Kingdom and Switzerland); questions asked what patients wished to gain from orthognathic treatment and how confident they were that they would be satisfied with treatment outcome...
March 27, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28434827/comprehensive-and-reliable-classification-system-for-primary-diagnosis-of-cleft-lip-and-palate
#20
Ahmed Elsherbiny, Ahmed S Mazeed
OBJECTIVE: Due to the lack of a universally accepted classification system, we are aiming to introduce a modified comprehensive, precise and relatively simple classification system for primary diagnosis of cleft lip and palate. METHODS: The proposed classification is based on the Kernahan's striped Y diagram with more details in cleft extent and with the addition of severity scores to each cleft component. Clear definitions of cleft extents and severity degrees were described based on 400 consecutive primary cases...
March 27, 2017: Journal of Cranio-maxillo-facial Surgery
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