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https://www.readbyqxmd.com/read/28724887/first-ornithomimid-theropoda-ornithomimosauria-from-the-upper-cretaceous-djadokhta-formation-of-t%C3%A3-gr%C3%A3-giin-shiree-mongolia
#1
Chinzorig Tsogtbaatar, Yoshitsugu Kobayashi, Tsogtbaatar Khishigjav, Philip J Currie, Mahito Watabe, Barsbold Rinchen
The Upper Cretaceous Djadokhta Formation has been intensively surveyed for its fossil vertebrate fauna for nearly a century. Amongst other theropods, dromaeosaurids and parvicursorines are common in the formation, but ornithomimosaurs are extremely rare. A new ornithomimosaur material was discovered from the Djadokhta Formation, represented by eolian deposits, of the Tögrögiin Shiree locality, Mongolia. This is only the third ornithomimosaur specimen reported from this formation, and includes the astragalus, the calcaneum, the third distal tarsal, and a complete pes...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28715039/erratum-to-computed-tomographic-evaluation-of-femoral-and-tibial-conformation-in-english-staffordshire-bull-terriers-with-and-without-congenital-medial-patellar-luxation
#2
Mark Newman, Katja Voss
OBJECTIVE: To compare hindlimb conformation of English Staffordshire Bull Terriers with and without medial patellar luxation using computed tomography. METHODS: Hindlimb computed tomography (CT) was performed on six English Staffordshire Bull Terriers with grade II or III medial patellar luxation, and six without medial patellar luxation. Inclination angle, femoral condyle trochanteric angle, anteversion angle (AA), distal anteversion angle (DAA), proximal anteversion angle (PAA), femoral varus angle (FVA), tibial valgus angle (TVA), and tibial torsion angle (TTA) were measured...
July 10, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28713738/three-dimensional-planning-and-reconstruction-of-the-mandible-in-children-with-craniofacial-microsomia-type-iii-using-costochondral-grafts
#3
Omri Emodi, Yair Israel, Michal Even Almos, Dror Aizenbud, John A Van Aalst, Adi Rachmiel
BACKGROUND: In craniofacial microsomia (CFM) Type III patients, autogenous costochondral grafts (CCG) are conventionally used for the reconstruction of the ramus and condyle. The aim of this study was to describe the use of CCG in children with CFM in terms of outcomes, growth patterns, and complications. MATERIALS AND METHODS: This is a retrospective study of nine, aged 4-12 years, patients with CFM Type III, who underwent reconstruction of the mandibular ramus condyle unit by CCG...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28709931/non-invasive-vibrometry-based-diagnostic-detection-of-acetabular-cup-loosening-in-total-hip-replacement-thr
#4
Abdullah A Alshuhri, Timothy P Holsgrove, Anthony W Miles, James L Cunningham
Total hip replacement is aimed at relieving pain and restoring function. Currently, imaging techniques are primarily used as a clinical diagnosis and follow-up method. However, these are unreliable for detecting early loosening, and this has led to the proposal of novel techniques such as vibrometry. The present study had two aims, namely, the validation of the outcomes of a previous work related to loosening detection, and the provision of a more realistic anatomical representation of the clinical scenario...
July 11, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28708658/condyle-head-reimplantation-combined-with-vascularized-free-flap-for-mandibular-reconstruction
#5
Jun-Yi Zhu, Hai-Xiao Zou, Hui-Min Li, Wei Wang, Jun Jia
Due to the anatomic and functional complexity, reconstruction of the condylar process after mandibular tumor extirpation remains a surgical challenge. The aim of this study was to present the results and experience of condyle head reimplantation combined with vascularized free flap for mandibular reconstruction in our institution. In the current study, the authors evaluated the clinical features of condyle head reimplantation combined with vascularized free flap for mandibular reconstruction in 5 patients with benign mandibular intraosseous lesions from December 2013 to March 2015 in our institution...
July 13, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28708129/validation-of-a-novel-imaging-approach-using-multi-slice-ct-and-cone-beam-ct-to-follow-up-on-condylar-remodeling-after-bimaxillary-surgery
#6
Laura Ferreira Pinheiro Nicolielo, Jeroen Van Dessel, Eman Shaheen, Carolina Letelier, Marina Codari, Constantinus Politis, Ivo Lambrichts, Reinhilde Jacobs
The main goal of this study was to introduce a novel three-dimensional procedure to objectively quantify both inner and outer condylar remodelling on preoperative multi-slice computed tomography (MSCT) and postoperative cone-beam computed tomography (CBCT) images. Second, the reliability and accuracy of this condylar volume quantification method was assessed. The mandibles of 20 patients (11 female and 9 male) who underwent bimaxillary surgery were semi-automatically extracted from MSCT/CBCT scans and rendered in 3D...
July 14, 2017: International Journal of Oral Science
https://www.readbyqxmd.com/read/28706801/combined-anatomic-reconstruction-of-the-anterior-cruciate-and-anterolateral-ligaments-using-hamstring-graft-through-a-single-femoral-tunnel-and-with-a-single-femoral-fixation
#7
Assem Mohamed Noureldin Zein, Mohamed Ali, Hesham Ali, Ahmed Nady Saleh Elsaid, Alaa Zenhom Mahmoud, Mohamed K Osman, Amr Mohamed Mohamed Soliman
Patients with complete anterior cruciate ligament (ACL) injury have different degrees of rotational (internal rotation) laxity. A residual pivot shift has been found to be positive in more than 15% of cases after an accurate ACL reconstruction. Improved understanding of the existence, function, and biomechanical role of the anterolateral ligament (ALL) in controlling rotational instability of the knee has redirected and refocused attention on a supplemental extra-articular reconstruction of the ALL in conjunction with the intra-articular ACL reconstruction so as to restore normal kinematics of the knee...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28706794/notchplasty-for-the-arthroscopic-treatment-of-limited-knee-extension
#8
Marcio B Ferrari, Sandeep Mannava, Nicholas DePhillipo, George Sanchez, Robert F LaPrade
Knee osteoarthritis may lead to narrowing of the intercondylar notch due to osteophyte formation, thereby causing changes in native knee biomechanics. The normal close contact between the condyles and the anterior cruciate ligament (ACL) during knee extension may be compromised due to narrowing of the notch and result in ACL damage, progression of knee osteoarthritis, and loss of knee extension. Outcomes after a notchplasty procedure are well reported for ACL reconstruction in young patients. However, there remains a lack of studies evaluating this procedure in the setting of knee osteoarthritis in patients with a symptomatic loss of knee extension...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28706788/post-traumatic-superolateral-dislocation-of-condyle-a-case-series-of-18-condyles-with-review-of-literature-and-a-proposed-classification
#9
REVIEW
Dichen Palmo Bhutia, Divya Mehrotra, Nitin Mahajan, Debraj Howlader, Jagdish Gamit
AIM: The aim is to review the English literature for post-traumatic superolateral dislocation of mandibular condyle (SDMC),discuss their dynamics and clinical management and to propose to modify the existing classification of SDMC. PATIENTS AND METHODS: A literature search was carried at Pubmed, Sciencedirect, Google and references from reported articles were crosschecked to look for the cases of SDMC from 1969 to 2015 in English language. Also, we have reviewed 11 of our patients with total of 18 superolateral dislocated intact or sagittal split condyles ,who visited our unit in the previous two years...
May 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/28706781/assessment-of-condyle-masseter-and-temporal-muscles-volumes-in-patients-with-juvenile-systemic-lupus-erythematosus-a-cross-sectional-study
#10
Sandra Lucia Golin, Nailu Angélica Sinicato, Karyna Valle-Corotti, Acácio Fuziy, Ana Carla Nahas-Scocate, Simone Appenzeller, Andre Luiz Ferreira Costa
AIMS: The purpose of this study was to evaluate the effect of the corticosteroid therapy for both treatment of juvenile systemic lupus erythematosus and disease activity on two masticatory muscles and condyle of the temporomandibular joint. METHODS: A total of 21 controls and 48 juvenile systemic lupus erythematosus patients were investigated. Volumes of the temporal and masseter muscles and condyle of the subjects were assessed by using a 3D reconstruction in magnetic resonance imaging...
May 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/28706321/cryptaphelenchus-varicaudatus-n-sp-rhabditida-ektaphelenchinae-from-tehran-province-iran
#11
Majid Pedram
Cryptaphelenchus varicaudatus n. sp. is described and illustrated. It was isolated from bark samples of dead or dying pine (Pinus spp.) trees with bark beetle frass and galleries, in Tehran province. The new species has 275- to 367-µm-long females (a medium-sized species) with distinctly annulated cuticle having three bands in lateral fields, lip region continuous with body contour, delicate knobbed stylet, monodelphic-prodelphic reproductive system with distinct spermatheca, short postvulval uterine sac (PUS), transverse vulval slit with raised posterior lip and body narrowing behind it, sclerotized vagina, simple intestine ending in a blind sac, having no rectum but vestigial anus in some specimens, and distal body end tip (tail tip) with variation in morphology (shape), from sharply or slightly pointed to bluntly rounded...
June 2017: Journal of Nematology
https://www.readbyqxmd.com/read/28704297/surgical-treatment-of-displaced-pediatric-lateral-condyle-fractures-of-the-humerus-by-the-posterior-approach
#12
William K Conaway, William L Hennrikus, Samine Ravanbakhsh, Zachary Winthrop, John Mahajan
The surgical approach for open reduction and internal fixation of lateral condyle fractures in children is controversial. Some authors recommend the lateral approach to the elbow over the posterior approach because of theoretical concern for injury to the vascular supply of the distal humerus and potential avascular necrosis (AVN). The purpose of this retrospective case series study is to report the outcomes of open reduction and internal fixation of displaced lateral condyle fractures of the humerus by the posterior approach...
July 12, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28703333/bone-tissue-response-following-local-drug-delivery-of-bisphosphonate-through-titanium-oxide-nanotube-implants-in-a-rabbit-model
#13
David H Kwon, Sang J Lee, Ulf M E Wikesjö, Petra Hammarström Johansson, Carina B Johansson, Young-Taeg Sul
OBJECTIVES: The objective of this study was to evaluate whether surface chemistry controlled TiO2 nanotube structures may serve as a local drug delivery system for zoledronic acid improving implant bone support. METHODS: Twenty-four screw-shaped Ti implants with surface chemistry controlled TiO2 nanotube structures were prepared and divided into a zoledronic acid-formatted test and a native control group. The implants were inserted into contralateral femoral condyles in 12 New Zealand White rabbits...
July 13, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28703117/early-diagnostics-of-temporomandibular-joint-structural-elements-injures-caused-by-traumatic-mandibular-bone-fractures
#14
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/28703030/cartilage-health-in-knees-treated-with-metal-resurfacing-implants-or-untreated-focal-cartilage-lesions-a-preclinical-study-in-sheep
#15
Nicolas Martinez-Carranza, Kjell Hultenby, Anne Sofie Lagerstedt, Peter Schupbach, Hans E Berg
Background Full-depth cartilage lesions do not heal and the long-term clinical outcome is uncertain. In the symptomatic middle-aged (35-60 years) patient, treatment with metal implants has been proposed. However, the cartilage health surrounding these implants has not been thoroughly studied. Our objective was to evaluate the health of cartilage opposing and adjacent to metal resurfacing implants. Methods The medial femoral condyle was operated in 9 sheep bilaterally. A metallic resurfacing metallic implant was immediately inserted into an artificially created 7...
July 1, 2017: Cartilage
https://www.readbyqxmd.com/read/28702392/subchondroplasty-for-treating-bone-marrow-lesions-in-the-knee-initial-experience
#16
Marcelo Batista Bonadio, Pedro Nogueira Giglio, Camilo Partezani Helito, José Ricardo Pécora, Gilberto Luis Camanho, Marco Kawamura Demange
OBJECTIVE: To evaluate the use of subchondroplasty in the treatment of bone marrow lesions in an initial series of five cases. METHODS: The study included patients aged between 40 and 75 years old, with pain in the knee for at least six months, associated with high-signal MRI lesion on T2 sequences, on the tibia or femur. Patients were assessed using the visual analog pain scale and the KOOS score, one week before surgery and one, three, six, 12, and 24 weeks after the procedure...
May 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28696002/mitochondrial-dysfunction-is-an-acute-response-of-articular-chondrocytes-to-mechanical-injury
#17
Michelle L Delco, Edward D Bonnevie, Lawrence J Bonassar, Lisa A Fortier
Mitochondrial (MT) dysfunction is known to occur in chondrocytes isolated from end-stage osteoarthritis (OA) patients, but the role of MT dysfunction in the initiation and early pathogenesis of post-traumatic OA (PTOA) remains unclear. The objective of this study was to investigate chondrocyte MT function immediately following mechanical injury in cartilage, and to determine if the response to injury differed between a weight bearing region (medial femoral condyle; MFC) and a non-weight bearing region (distal patellofemoral groove; PFG) of the same joint...
July 11, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28694600/long-term-resolution-of-delayed-onset-hypoglossal-nerve-palsy-following-occipital-condyle-fracture-case-report-and-review-of-the-literature
#18
Sudhakar Vadivelu, Zihan Masood, Bryan Krueger, Rudy Marciano, David Chen, Cliff Houseman, Salvatore Insinga
The authors present the case of a patient that demonstrates resolution of delayed onset hypoglossal nerve palsy (HNP) subsequent to occipital condyle fracture following a motor vehicle accident. Decompression of the hypoglossal nerve and craniocervical fixation led to satisfactory long-term (>5 years) outcome. There is a scarcity of literature in recognizing HNPs following trauma and a lack of pathophysiological understanding to both a delayed presentation and to resolution versus persistence. This is the first report demonstrating long-term resolution of hypoglossal nerve injury following trauma to the craniocervical junction...
April 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/28690356/diagnostic-index-an-open-source-tool-to-classify-tmj-oa-condyles
#19
Beatriz Paniagua, Laura Pascal, Juan Prieto, Jean Baptiste Vimort, Liliane Gomes, Marilia Yatabe, Antonio Carlos Ruellas, Francois Budin, Steve Pieper, Martin Styner, Erika Benavides, Lucia Cevidanes
Osteoarthritis (OA) of temporomandibular joints (TMJ) occurs in about 40% of the patients who present TMJ disorders. Despite its prevalence, OA diagnosis and treatment remain controversial since there are no clear symptoms of the disease, especially in early stages. Quantitative tools based on 3D imaging of the TMJ condyle have the potential to help characterize TMJ OA changes. The goals of the tools proposed in this study are to ultimately develop robust imaging markers for diagnosis and assessment of treatment efficacy...
February 11, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28690046/kinematic-behavior-of-a-customized-surface-guided-knee-implant-during-simulated-knee-bending
#20
Shabnam Pejhan, Eric Bohm, Jan-Mels Brandt, Trevor Gascoyne, Urs Wyss
Different designs of total knee replacements (TKRs) aim to enhance the satisfaction of the patients by providing close to normal kinematics. In the surface-guided TKRs, the guidance of the motion in a normal pattern should be achieved through specially shaped articulating geometries. This study used virtual simulation along with a load-controlled knee wear simulator to evaluate the kinematic performance of a customized surface-guided TKR under weight-bearing conditions of lunging and squatting activities. The outcome pattern of TKR motion almost agreed with the predefined design target...
July 6, 2017: Medical Engineering & Physics
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