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Condylar Fracture

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https://www.readbyqxmd.com/read/28732217/finite-element-evaluation-of-stable-fixation-in-combined-mandibular-fractures
#1
Thalita Regina Vieira E Oliveira, Daniel Takanori Kemmoku, Jorge Vicente Lopes da Silva, Pedro Yoshito Noritomi, Luis Augusto Passeri
PURPOSE: The fixation of combined mandibular fractures, especially symphyseal-condylar fractures, although occurring commonly and having a higher complication rate in the clinic, is rarely investigated regarding predictable therapeutic approaches. Thus this study's aim was to assess different forms of condylar fixation when combined with symphyseal fracture fixation. MATERIALS AND METHODS: Using finite element models, we analyzed the stress distribution that occurs when a condylar fracture is fixed with 1 miniplate, 2 miniplates, or a trapezoidal condylar miniplate and when a symphyseal fracture is fixed with 2 parallel plates, 2 perpendicular plates, or 2 lag screws...
June 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28717284/is-the-mandibular-growth-affected-by-internal-rigid-fixation-a-systematic-review
#2
REVIEW
Humberto Fernández-Olarte, Andrés Gómez-Delgado, Dayan López-Dávila, Rodolfo Rangel-Perdomo, Gloria Inés Lafaurie, Leandro Chambrone
PURPOSE: The purpose of this systematic review was to evaluate, in animal model-based studies, whether there are mandibular growth alterations, after open reduction and internal rigid fixation with titanium plates and screws. METHODS: A literature search was conducted using the MEDLINE, EMBASE, and LILACS databases, up to and including August 2015. Surgical reduction and internal rigid fixation (IRF) of induced fractures were compared to non-invasive procedures, in order to investigate if there were alterations in the mandibular growth patterns...
September 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28711589/fixation-strength-of-a-polyetheretherketone-femoral-component-in-total-knee-arthroplasty
#3
Lennert de Ruiter, Dennis Janssen, Adam Briscoe, Nico Verdonschot
INTRODUCTION: Introducing polyetheretherketone (PEEK) polymer as a material for femoral components in total knee arthroplasty (TKA) could potentially lead to a reduction of the cemented fixation strength. A PEEK implant is more likely to deform under high loads, rendering geometrical locking features less effective. Fixation strength may be enhanced by adding more undercuts or specific surface treatments. The aim of this study is to measure the initial fixation strength and investigate the associated failure patterns of three different iterations of PEEK-OPTIMA(®) implants compared with a Cobalt-Chromium (CoCr) component...
July 12, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28703117/early-diagnostics-of-temporomandibular-joint-structural-elements-injures-caused-by-traumatic-mandibular-bone-fractures
#4
Kh R Pohranychna, A R Stasyshyn, U D Matolych
A rapidly increasing number of mandibular condylar fractures and some complications related to injuries of temporomandibular elements make this study important. Intra-articular disorders lead to secondary pathological findings such as osteoarthritis, deforming osteoarthrosis, and temporomandibular joint ankylosis that limits mouth opening, mastication, swallowing, breathing, and decreased/lost working capacity or disability. Early diagnosis of intra-articular disorders can prevent from long-lasting functional complications caused by temporomandibular joint injuries...
June 30, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28682861/right-femoral-pathological-fracture-caused-by-primary-bone-epithelioid-angiosarcoma-case-report
#5
Yatong Li, Xiongfei Zou, Xiaoyan Chang, Xiao Chang, Shengfang Sun, Baozhong Zhang
RATIONALE: Epithelioid angiosarcoma (EAS) is an extremely rare malignant disease, which accounts no more than 1% of all soft tissue sarcomas. In this article, we would report a new case of EAS with multiple bone destruction and right femoral pathological fracture, which was an even rarer manifestation of EAS. PATIENT CONCERNS: In this case, a 64-year-old man with right femoral fracture was reported. He had suffered from a progressive low back pain for about 8 months, and the imaging examinations prompted a multiple bone destruction in his vertebra and lower limbs...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28631937/the-effect-of-the-sagittal-ridge-angle-on-cartilage-stress-in-the-equine-metacarpo-phalangeal-fetlock-joint
#6
Helen Liley, Helen Davies, Elwyn Firth, Thor Besier, Justin Fernandez
Fatigue failure of bones of the metacarpo-phalangeal (fetlock, MCP) joint is common in thoroughbred racehorses. Stresses within the fetlock joint cartilages are affected by the morphology of the third metacarpal bone (MC3) and proximal phalangeal bone, and the steepness of the median sagittal ridge of MC3 is believed to be associated with fracture. This study investigated the influence of the steepness of the sagittal ridge on cartilage stress distribution using a finite element model of the joint. Changes to the steepness of the sagittal ridge were made by applying a parabolic function to the mesh, creating four different models with sagittal ridge angles ranging from 95° to 105°...
June 15, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28630773/functional-treatment-of-a-child-with-extracapsular-mandibular-fracture
#7
Diana Cassi, Marisabel Magnifico, Chiara Di Blasio, Mauro Gandolfini, Alberto Di Blasio
Condylar fractures are among the most frequent fractures in the context of traumatic lesions of the face. The management of condylar fractures is still controversial, especially when fractures occur in children: if overlooked or inappropriately treated, these lesions may lead to severe sequelae, both cosmetic and functional. The therapy must be careful because severe long-term complications can occur. In this case report, the authors present a case of mandibular fracture in which the decision between surgical therapy and functional therapeutic regimen may be controversial due to the particular anatomy of the fracture line and the age of the patient...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28570407/a-modified-external-fixator-system-in-treatment-of-mandibular-condylar-fractures
#8
Piero Cascone, Fabrizio Spallaccia, Paolo Arangio, Valentino Vellone, Matteo Gualtieri
The purpose of this study is to evaluate patient's outcomes after condylar fractures treated with the modified external fixation system from 2008 to 2012.A group of 58 patients with unilateral and bilateral fractures of mandibular condyle was admitted in the authors' study.The final sample included a total of 44 patients, 24 males (54.6%) and 20 females (45.4%).The remaining 14 (24%) patients were excluded because they did not fulfill all the criteria requested.After 12 months from surgery, the functional-clinical evaluation of mouth's maximum opening and mostly extent of lateral excursion and of protrusion showed the following results: 8% of the sample showed a maximum mouth opening <30 mm, 72% of the sample showed a maximum mouth opening between 30 and 40 mm, 20% of the sample showed a maximum mouth opening >40 mm lateral excursion (contralateral to fracture) and protrusion was respectively of 9...
May 31, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28553441/prospective-case-study-of-outcome-of-tibial-plateau-fractures-treated-with-locking-condylar-plate
#9
R Jain
Introduction: Tibial plateau injury involves the articular surface of the proximal tibia with diverse group of fractures that represent a wide spectrum of severity that challenge even the most experienced surgeons, but with the invent of modern diagnostic technology and the advent of locking plates, results appear to be improving over time. Method: The study was conducted on thirty patients admitted in the department of orthopaedics with diagnoses of tibial plateau fractures treated with Locking Condylar Plate...
November 2016: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28538289/a-three-dimensional-analysis-of-the-fracture-planes-in-pediatric-lateral-humeral-condyle-fractures-for-image-based-pin-positioning-during-fixation
#10
Do Young Park, Jae Ho Cho, Doo-Hyung Lee, Wan-Sun Choi, Jun Young Bang, Xiang Yun Yin
OBJECTIVE: To determine the 3 dimensional morphology of pediatric lateral condylar physeal fractures using 3-dimensional computed tomography (3D-CT) and to identify optimal pin positions for percutaneous pinning. DESIGN: Prospective case series of consecutively treated patients SETTING:: Tertiary university hospital setting. PATIENTS: Preoperative 3D-CTs in pediatric surgical candidates diagnosed with lateral condylar physeal fractures INTERVENTION:: Closed reduction and percutaneous pinning was performed...
May 17, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28511466/management-of-cubitus-varus-deformity-in-children-by-closed-dome-osteotomy
#11
Partap Singh Verka, Ujjwal Kejariwal, Bijendra Singh
INTRODUCTION: Supracondylar fractures are the most common elbow injuries in skeletally immature children between 5-10 years of age and cubitus varus deformity is the most common late complication. Cubitus varus or bow elbow or gunstock deformity is the result of malunion occurring as a complication of supracondylar fracture of the humerus. Various type of corrective osteotomies are used of which lateral closed wedge French osteotomy is commomly used which has its own complications like lateral condylar prominence, unsightful scar and limitation of movement...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28497104/stress-fracture-of-the-lateral-femoral-condyle-after-total-knee-arthroplasty
#12
Mohammad M Sarzaeem, Mahmood Jabalameli
BACKGROUND: This is to assess one of the rare complications after total knee replacement and to assess risk factors of failure. METHODS: 11 patients with varus knee and an average age of 67 years underwent TKA between 2005 and 2013. All patients returned with a sudden sharp knee pain, disability to walk and significant decrease in ROM about 4 to 8 weeks after surgery. Radiographic examination revealed a lateral femoral condylar stress fracture. RESULTS: After analyzing the images, we found common characteristics among all patients, which might be attributable to the later fracture including varus deformity>25, femoral component lateralization, and valgus correction...
March 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28468225/open-reduction-in-pediatric-condylar-fracture
#13
Alexandre Agostini Barbosa, Ronaldo Célio Mariano
Facial fractures in children are rare. Lack of pneumatization, fat pockets, mixed dentition, contribute to the elasticity and bone stability. When mandibular fractures occur in children, most often involve the condyle by indirect trauma. Such fractures are the center of discussion on the form of treatment if this should be performed conservatively, or held the reduction and fixation of the fracture with surgical exposure of the fragments. In condylar fractures in children, in most patients, the proposed treatment is closed reduction...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28464946/evaluating-the-biomechanical-effects-of-implant-diameter-in-case-of-facial-trauma-to-an-edentulous-atrophic-mandible-a-3d-finite-element-analysis
#14
Aysa Ayali, Kani Bilginaylar
BACKGROUND: Rehabilitation using an implant supported overdenture with two implants inserted in the interforaminal region is the easiest and currently accepted treatment modality to increase prosthetic stabilization and patient satisfaction in edentulous patients. The insertion of implants to the weakend mandibular bone decreases the strength of the bone and may lead to fractures either during or after implant placement. The aim of this three dimensional finite element analysis (3D FEA) study was to evaluate the biomechanical effects of implant diameter in case of facial trauma (2000 N) to an edentulous atrophic mandible with two implant supported overdenture...
May 2, 2017: Head & Face Medicine
https://www.readbyqxmd.com/read/28462215/condylar-constrained-system-in-primary-total-knee-replacement-our-experience-and-literature-review
#15
Luigi Sabatini, Salvatore Risitano, Lorenzo Rissolio, Andrea Bonani, Francesco Atzori, Alessandro Massè
BACKGROUND: Constrained condylar knee (CCK) prosthesis are common used for revision surgery but can also help surgeons to improve implant stability in primary knee arthroplasty, in fact in severe knee arthrosis with serious deformity associated with a significant instability a more constrained articulation is required. With introduction of second generation of semi-constrained prosthesis, rate of complication is real decreased and a good survival rate and functional score results is showed...
March 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28460872/fixation-of-fractures-of-the-condylar-head-of-the-mandible-with-a-new-magnesium-alloy-biodegradable-cannulated-headless-bone-screw
#16
H Leonhardt, A Franke, N M H McLeod, G Lauer, A Nowak
It is difficult to fix fractures of the condylar head of the mandible. Several techniques have been described which show satisfactory outcomes, but stability can be questionable, and some can cause irritation of the soft tissues. We describe a technique and first results of treating such fractures with resorbable magnesium-based headless bone screws (Magnezix(®) 2.7mm CS; Syntellix AG, Hanover, Germany).
July 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28433980/a-paediatric-case-of-bilateral-mandibular-condyle-fracture-presenting-with-bloody-otorrhoea-following-trauma
#17
Yat Chun Chan, Kwan Leong Au-Yeung
A 7-year-old boy presented to the emergency department with bilateral bloody otorrhoea after falling from his scooter. Skull base fracture was suspected. CT showed no evidence of skull base fracture but bilateral mandibular condyle and external acoustic canals fractures. We report this case to illustrate a rare possibility of bilateral external acoustic canal fracture associated with condylar fracture in trauma patients presented with bloody otorrhoea.
April 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28432520/unexpected-death-after-occipital-condylar-fracture
#18
Vincent J Bulthuis, E M J Cornips, J Dings, H van Santbrink, A A Postma
We present a rare fatal complication of an occipital condylar fracture. The patient was initially neurologically intact, but showed secondary clinical deterioration. Imaging revealed extensive extra-axial hemorrhage at the craniocervical junction and an acute obstructive hydrocephalus. MR imaging demonstrated a T2 hyperintens signal in both the lower brainstem and upper cervical spinal cord, likely caused by the extra-axial hemorrhage. As prognosis was estimated infaust, supportive treatment was discontinued and the patient died soon thereafter...
June 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28429855/coincidence-of-mandibular-fractures-with-isolated-posterior-maxillary-sinus-fractures
#19
Sebastian Blatt, Roman Rahimi-Nedjat, Keyvan Sagheb, Lisa Piechowiak, Christian Walter, Dan Brüllmann
BACKGROUND/AIM: There is no data available to show whether there is a relationship between mandibular fractures and isolated fractures of the posterior and/or latera wals of the maxillary sinus. The aim of this study was to determine whether there is a coincidence between these fracture patterns. METHODS: Four hundred large volume cone beam computed tomography scans (CBCT) of patients with a fracture of the mandible between 2008 and 2013 were analyzed retrospectively...
April 21, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28412268/how-is-third-molar-status-associated-with-the-occurrence-of-mandibular-angle-and-condyle-fractures
#20
Shuai Xu, Jun-Jie Huang, Yu Xiong, Ying-Hui Tan
PURPOSE: Third molars (M3s) have been hypothesized to be associated with the risk of mandibular angle fracture and mandibular condylar fracture. The authors systematically estimated the relative risk (RR) of M3 status for the development of mandibular angle fracture and mandibular condylar fracture through a meta-analysis of cohort studies. MATERIALS AND METHODS: In this systematic review, the PubMed, EMBASE, and Cochrane Library databases were searched from inception to October 2016...
March 23, 2017: Journal of Oral and Maxillofacial Surgery
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