3,209 results match your criteria lateral sizes

Morphological and microstructural characteristics of scales in longnose goby Awaous jayakari (Teleostei: Gobiidae): Light and scanning electron microscopy approaches.

Microsc Res Tech 2021 Jul 22. Epub 2021 Jul 22.

Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran.

The scale morphology of a native goby, Awaous jayakari (Gobiidae) was studied using scanning electron microscopy and light microscopy. The morphological descriptions were based on the scale's type, shape, and features of the anterior, posterior, and lateral fields. Further characteristics of the focus, circuli, radii, lepidonts, and cteni, were investigated. Read More

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The impact of closed incisional negative pressure therapy on anterior lateral thigh flap donor site healing and scarring: A retrospective case-control study.

J Plast Reconstr Aesthet Surg 2021 Jun 13. Epub 2021 Jun 13.

Department of Hand, Plastic and Reconstructive Surgery, Burn Center, BG Trauma Center Ludwigshafen, Ludwig-Guttmann-Strasse 13, 67071 Ludwigshafen, Germany; Hand and Plastic Surgery, University of Heidelberg, Heidelberg, Germany. Electronic address:

Background: The objective of this study was to investigate whether closed incisional negative pressure therapy (cINPT) is suitable to improve anterior lateral thigh (ALT) flap donor site healing and scarring.

Methods: We identified 271 ALT free flaps of widths between 7 and 9 cm and primary donor site closure performed between January 2012 to December 2019. Patients were divided into cases of cINPT versus controls without cINPT as part of this retrospective case-control review. Read More

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Evaluation of Posterior Fossa Biometric Measurements on Fetal MRI in the Evaluation of Dandy-Walker Continuum.

AJNR Am J Neuroradiol 2021 Jul 15. Epub 2021 Jul 15.

University of Cincinnati College of Medicine (U.D.N., B.M.K.-F., P.S.H., C.V.), Cincinnati, Ohio.

Background And Purpose: Dandy-Walker malformation, vermian hypoplasia, and Blake pouch remnant represent a continuum of anomalies and are common reasons for referral for fetal MR imaging. This study aimed to determine biometric measurements that quantitatively delineate these 3 posterior fossa phenotypes.

Materials And Methods: Our single-center institutional review board approved a retrospective analysis of all fetal MRIs for posterior fossa malformations, including Dandy-Walker malformation, vermian hypoplasia, and Blake pouch remnant. Read More

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Evaluation of fit feasibility of stock total joint replacement in temporomandibular joint ankylosis patients.

Br J Oral Maxillofac Surg 2020 Dec 2. Epub 2020 Dec 2.

Department of Radiology, All India Institute of Medical Sciences, New Delhi, India.

Long standing adult temporomandibular joint ankylosis (TMJA) results in smaller ramal height, and warped and undulated ramus. Despite the efforts made to standardise the sizes available in stock joint (Zimmer Biomet®), the system causes fit challenges in TMJA patients. The aim of the study was to evaluate the virtual feasibility of stock prostheses in TMJA patients. Read More

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December 2020

Rest-pause and drop-set training elicit similar strength and hypertrophy adaptations compared to traditional sets in resistance-trained males.

Appl Physiol Nutr Metab 2021 Jul 14. Epub 2021 Jul 14.

Federal University of Parana, 28122, Metabolism, Nutrition and Resistance Training Research Group (GPMENUTF), Department of Physical Education, Curitiba, PR, Brazil.

The present paper aimed to compare the effect of drop-set (DS) and rest-pause (RP) systems versus traditional resistance training (TRT) with equalized total training volume on maximum dynamic strength (1RM) and thigh muscle thickness (MT).Twenty-eight resistance-trained males were randomly assigned to either RP (n = 10), DS (n = 9) or TRT (n = 9) protocols performed twice a week for 8 weeks. 1RM and MT of the proximal, middle and distal portions of the lateral thigh were assessed at baseline and post intervention. Read More

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Detection and characterization of folded-chain clusters in the structured melt of isotactic polypropyl-ene.

IUCrJ 2021 Jul 15;8(Pt 4):595-607. Epub 2021 May 15.

Institute of Solid State Physics, CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, People's Republic of China.

Despite ceaseless efforts in past decades, the memory effect of semi-crystalline polymers has not been elucidated completely yet. An important reason why is that residual lamellar crystals in the structured melt are difficult to characterize. Recently, we developed a new small-angle X-ray scattering (SAXS) theory [Li (2019). Read More

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Validation and performance of a machine-learning derived prediction guide for total knee arthroplasty component sizing.

Arch Orthop Trauma Surg 2021 Jul 13. Epub 2021 Jul 13.

University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.

Introduction: Anticipation of patient-specific component sizes prior to total knee arthroplasty (TKA) is essential to avoid excessive cost associated with additional surgical trays and morbidity associated with imperfect sizing. Current methods of size prediction, including templating, are inconsistent and time-consuming. Machine learning (ML) algorithms may allow for accurate TKA component size prediction with the ability to make predictions in real-time. Read More

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Evidence for generalizability of edaravone efficacy using a novel machine learning risk-based subgroup analysis tool.

Amyotroph Lateral Scler Frontotemporal Degener 2021 Jul 10:1-9. Epub 2021 Jul 10.

Origent Data Sciences, Inc., Vienna, VA, USA, and.

The edaravone development program for amyotrophic lateral sclerosis (ALS) included trials MCI186-16 (Study 16) and MCI186-19 (Study 19). A cohort enrichment strategy was based on a Study 16 post hoc analysis and applied to Study 19 to elucidate a treatment effect in that study. To determine whether the Study 19 results could be generalized to a broader ALS population, we used a machine learning (ML) model to create a novel risk-based subgroup analysis tool. Read More

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Short stem hip arthroplasty via the minimally invasive direct anterior approach.

Oper Orthop Traumatol 2021 Jul 12. Epub 2021 Jul 12.

Department of Orthopaedic Surgery, University of Wuerzburg, Koenig-Ludwig-Haus, Brettreichstr. 11, 97074, Wuerzburg, Germany.

Objective: Tissue-sparing, minimally invasive hip arthroplasty via the direct anterior approach (DAA) using a partially neck-preserving, calcar-guided short stem.

Indications: Primary and secondary osteoarthritis of the hip due to developmental dysplasia, femoroacetabular impingement, femoral head necrosis or trauma sequelae.

Contraindications: Severe osteoporosis, active infection, American Society of Anesthesiologists (ASA) > III, large metaphyseal bone defects, severe metaphyseal deformities, Dorr type C femur. Read More

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Effect of donor-specific blood transfusions on allotransplanted teeth in a monkey model: Histoquantification of periodontal healing.

Dent Traumatol 2021 Jul 12. Epub 2021 Jul 12.

Department of Oral and Maxillofacial Surgery, Rigshospitalet (University Hospital), Copenhagen, Denmark.

Background/aims: Pre-transplant blood transfusions have previously shown a positive effect on organ allograft survival in humans and various animal species. The aims of this study were, first, to evaluate the effect of pre-transplant donor-specific blood transfusions on periodontal healing of fully developed allotransplanted teeth in monkeys; and second, to investigate the immune response against donor antigens and to determine a possible correlation between alloimmune reactions and histopathological signs of rejection.

Material And Methods: Twenty monkeys (Cercopithecus aethiops) were divided into ten pairs with similar sizes of incisors. Read More

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A Monte Carlo dose calculation system for ophthalmic brachytherapy based on a realistic eye model.

Med Phys 2021 Jul 11. Epub 2021 Jul 11.

Department of Medical Physics, Hospital Universitario Virgen Macarena, Seville, Spain.

Purpose: There is a growing trend towards the adoption of model-based calculation algorithms (MBDCAs) for brachytherapy dose calculations which can properly handle media and source/applicator heterogeneities. However, most of dose calculations in ocular plaque therapy are based on homogeneous water media and standard in-silico ocular phantoms, ignoring non-water equivalency of the anatomic tissues and heterogeneities in applicators and patient anatomy. In this work, we introduce EyeMC, a Monte Carlo (MC) model-based calculation algorithm for ophthalmic plaque brachytherapy using realistic and adaptable patient-specific eye geometries and materials. Read More

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Location of the targeted lymph node in a mandibular lymphocentrum: A needle aspiration model in canine cadavers.

Vet Comp Oncol 2021 Jul 9. Epub 2021 Jul 9.

Carlson College of Veterinary Medicine, Department of Clinical Sciences, Oregon State University, Corvallis, Oregon, USA.

Accurate tumour staging has a profound impact on the care and prognosis of oncologic patients. Due to the presence of multiple lymph nodes (LNs) in the mandibular lymphocentrum, clinicians may not know which specific LN they are sampling during routine fine needle aspirations, which introduces a source of uncertainty in accurately determining patient clinical stage. The objective of this cadaveric study was to determine the success of targeting specific mandibular LNs by palpation alone, verified by computed tomography (CT). Read More

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The role of the medial prefrontal cortex in cognition, ageing and dementia.

Brain Commun 2021 Jul 11;3(3):fcab125. Epub 2021 Jun 11.

Translational and Clinical Research Institute, Newcastle University, Campus for Ageing & Vitality, Newcastle upon Tyne NE4 5PL, UK.

Humans require a plethora of higher cognitive skills to perform executive functions, such as reasoning, planning, language and social interactions, which are regulated predominantly by the prefrontal cortex. The prefrontal cortex comprises the lateral, medial and orbitofrontal regions. In higher primates, the lateral prefrontal cortex is further separated into the respective dorsal and ventral subregions. Read More

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Evaluation of an improved anchoring nail in temporomandibular joint disc repositioning surgery: A prospective study of 25 patients.

J Craniomaxillofac Surg 2021 Jun 3. Epub 2021 Jun 3.

Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, College of Stomatology, Shanghai JiaoTong University School of Medicine, And Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China. Electronic address:

To confirm the effectiveness and stability of an improved anchoring nail through a prospective study using clinical evaluation and magnetic resonance imaging (MRI). Patients undergoing TMJ disc reduction and fixation were followed up for 1 year.Visual analog scale (VAS) pain scores and TMJ range of motion (maximum interincisal opening, protrusive excursion, lateral excursion) data were gathered pre- and postoperatively, and patient satisfaction was recorded. Read More

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Adapting the Pore Size of Individual, 3D-Printed CPC Scaffolds in Maxillofacial Surgery.

J Clin Med 2021 Jun 16;10(12). Epub 2021 Jun 16.

Department of Oral and Maxillofacial Surgery, Faculty of Medicine "Carl Gustav Carus", Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany.

Three dimensional (3D) printing allows additive manufacturing of patient specific scaffolds with varying pore size and geometry. Such porous scaffolds, made of 3D-printable bone-like calcium phosphate cement (CPC), are suitable for bone augmentation due to their benefit for osteogenesis. Their pores allow blood-, bone- and stem cells to migrate, colonize and finally integrate into the adjacent tissue. Read More

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Comparison of Single- and Mixed-Sized Gold Nanoparticles on Lateral Flow Assay for Albumin Detection.

Biosensors (Basel) 2021 Jun 26;11(7). Epub 2021 Jun 26.

Materials Science and Engineering Program, Faculty of Science, Mahidol University, Bangkok 10400, Thailand.

The sensitivity and reproducibility of the lateral flow assay can be influenced by multiple factors, such as the size of gold nanoparticles (GNPs) employed. Here, we evaluated the analytical performance of single-sized and mixed-sized GNPs using a simple lateral flow assay (LFA) platform. This platform was used as a model assay to diagnose albumin levels and demonstrate the analytical performance of single-sized and mixed-sized GNPs in LFA tests. Read More

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Growth and Crystallization of SiO/GeO Thin Films on Si(100) Substrates.

Nanomaterials (Basel) 2021 Jun 23;11(7). Epub 2021 Jun 23.

Nanostructures of Functional Oxides, Zernike Institute for Advanced Materials, University of Groningen, 9747 AG Groningen, The Netherlands.

The growth of α-quartz-based piezoelectric thin films opens the door to higher-frequency electromechanical devices than those available through top-down approaches. We report on the growth of SiO2/GeO2 thin films by pulsed laser deposition and their subsequent crystallization. By introducing a devitrifying agent uniformly within the film, we are able to obtain the α-quartz phase in the form of platelets with lateral sizes above 100 μm at accessible temperatures. Read More

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Diabetes Mellitus and Amyotrophic Lateral Sclerosis: A Systematic Review.

Biomolecules 2021 Jun 10;11(6). Epub 2021 Jun 10.

Department of Neuroscience, Imaging and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, 66100 Chieti, Italy.

Background: Amyotrophic Lateral Sclerosis (ALS) is a degenerative disorder which affects the motor neurons. Growing evidence suggests that ALS may impact the metabolic system, including the glucose metabolism. Several studies investigated the role of Diabetes Mellitus (DM) as risk and/or prognostic factor. Read More

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Dynamic "Molecular Portraits" of Biomembranes Drawn by Their Lateral Nanoscale Inhomogeneities.

Roman G Efremov

Int J Mol Sci 2021 Jun 10;22(12). Epub 2021 Jun 10.

M.M. Shemyakin & Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Street, 16/10, 117997 Moscow, Russia.

To date, it has been reliably shown that the lipid bilayer/water interface can be thoroughly characterized by a sophisticated so-called "dynamic molecular portrait". The latter reflects a combination of time-dependent surface distributions of various physicochemical properties, inherent in both model lipid bilayers and natural multi-component cell membranes. One of the most important features of biomembranes is their mosaicity, which is expressed in the constant presence of lateral inhomogeneities, the sizes and lifetimes of which vary in a wide range-from 1 to 10 nm and from 0. Read More

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Percutaneous gastrostomy in amyotrophic lateral sclerosis: a review.

Amyotroph Lateral Scler Frontotemporal Degener 2021 Jul 1:1-14. Epub 2021 Jul 1.

Instituto de Fisiologia, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.

Amyotrophic lateral sclerosis (ALS) causes dysphagia and consequent poor nutrition. Sometimes enteral feeding is offered. Percutaneous endoscopic gastrostomy (PEG) is currently the technique of choice for enteral nutrition of these patients. Read More

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Biomechanical investigation of potential prophylactic scoliosis treatments following various sizes of chest wall resection.

Clin Biomech (Bristol, Avon) 2021 Jul 18;87:105416. Epub 2021 Jun 18.

Spine Surgery and Musculoskeletal Oncology, Houston Methodist Hospital, Houston, TX, USA.

Background: A well-known problematic sequela of chest wall resections is development of scoliosis. Despite the seriousness and frequency of scoliosis following chest well resection, the etiology and biomechanical information needed to understand this progression aren't well-known.

Methods: Range of motion of six specimen (C7-L2) was captured using a custom-built six degrees-of-freedom machine in each of three physiological rotation axes. Read More

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Local Random Pattern Flap Coverage for Implant Exposure following Open Reduction Internal Fixation via Extensile Lateral Approach to the Calcaneus.

BMC Musculoskelet Disord 2021 Jun 21;22(1):567. Epub 2021 Jun 21.

Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan road, Shanghai, 200233, China.

Background: Skin necrosis and implant exposure most often appear at the corner of Extensile Lateral Approach for open reduction and internal fixation (ORIF) for displaced intra-articular fracture of the calcaneus. Flap transfer is often used for coverage of this implant exposure. We introduced a new simple local random pattern flap to cover the implant exposure. Read More

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Accuracy of computer-assisted, template-guided implant placement compared with conventional implant placement by hand-An in vitro study.

Clin Oral Implants Res 2021 Jun 18. Epub 2021 Jun 18.

Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.

Objectives: To compare free-hand to computer-assisted implant planning and placement (CAIPP) regarding planned to achieved implant position.

Material And Methods: Forty-eight cast/bone models were mounted in mannequin heads. On each side, a tooth gap of different sizes was created. Read More

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Low Rate of Peri-implant Osteolysis in Trabecular Metal Total Ankle Replacement on Short- to Midterm Follow-up.

Foot Ankle Int 2021 Jun 18:10711007211017468. Epub 2021 Jun 18.

Turku University Hospital, Turku, Finland.

Background: Peri-implant osteolysis is one of the major complications related to total ankle replacement. The aim of this study was to investigate the short- to midterm incidence of peri-implant osteolysis using computed tomography (CT) as imaging method for the Trabecular Metal Total Ankle (TMTA) implant representing a novel total ankle replacement (TAR) implant design regarding material and surgical technique.

Methods: In total, 104 consecutive patients who had a primary TMTA replacement between March 2013 and October 2017 were included in the study. Read More

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Reconstruction of Large Area of Deep Wound in the Foot and Ankle with Chimeric Anterolateral Thigh Perforator Flap.

Orthop Surg 2021 Jun 17. Epub 2021 Jun 17.

Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China.

Objective: To evaluate the clinical application and surgical efficacy of the chimeric perforator flap pedicled with the descending branch of the lateral circumflex femoral artery and the lateral thigh muscle flap for the reconstruction of the large area of deep wound in foot and ankle.

Methods: Clinical data of 32 cases who underwent chimeric anterolateral thigh perforator flap to repair the large area of deep wound of the foot and ankle from January 2015 to December 2018 were retrospectively analyzed. The sizes of the defects ranged from 18 cm × 10 cm to 35 cm × 20 cm, with exposed tendon and bone and/or partial defects and necrosis, contaminations, accompanied by different degrees of infection. Read More

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Pre-clinical dosimetry of a new six-channel applicator for high-dose-rate treatment of esophageal cancer.

J Contemp Brachytherapy 2021 Jun 12;13(3):318-324. Epub 2021 May 12.

Department of Radiation Oncology, Cleveland Clinic, Cleveland, USA.

Purpose: To evaluate the dosimetry of a six-channel high-dose-rate (HDR) applicator for treatment of esophageal cancer with respect to lateral directionality and heterogeneous media.

Material And Methods: A computed tomography (CT)- and magnetic resonance imaging (MRI)-compatible esophageal applicator consisting of 2 inflatable portions (anchor and therapeutic balloons) with 6 longitudinal treatment catheters equally spaced circumferentially was constructed. Treatment plans were prepared using Oncentra 4. Read More

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Does one heavy load back squat set lead to postactivation performance enhancement of three-point explosion and sprint in third division American football players?

BMC Sports Sci Med Rehabil 2021 Jun 7;13(1):64. Epub 2021 Jun 7.

Institute of Sport Science, Friedrich Schiller University Jena, Jena, Germany.

Background: American football players need the ability to provide maximal muscular power in a modicum of time. Postactivation performance enhancement (PAPE), which is characterized by an acute improvement of a performance measure following conditioning contractions, could be of value for American football players. The aim of the present study was to determine the effect of a heavy load back squat PAPE protocol on three-point explosion (TPE; an essential blocking technique and drill) and 40-yard dash (40YD) performance compared to a traditional warm-up in American football players. Read More

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A zygomatic bone study using virtual dental implant planning software.

J Oral Implantol 2021 Jun 5. Epub 2021 Jun 5.

State University of Londrina Professor Department of Restorative Dentistry Clínica Odontológica Universitária Rua Pernambuco 540 Centro BRAZIL Londrina Paraná 86020-120 State University of Londrina.

This study evaluated the anatomical factors that influence the virtual planning of zygomatic implants by using cone beam computerized tomography (CBCT) scans. CBCT scans of 268 maxilla edentulous patients were transferred to a specialized implant planning software (Galaxis, Sirona) for the following measurements: maxillo-sinus concavity size (small, medium, and large), Zygoma width, implant insertion angle, implant length, and implant apical anchorage. Concavity sizes found were as follows: 34. Read More

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Plan Complexity and Delivery Accuracy of Knowledge-based Volumetric Modulated Arc Therapy Plans with Single Optimization for Oropharyngeal Cancer.

Anticancer Res 2021 Jun;41(6):2925-2931

Department of Radiation Oncology, Faculty of Medicine, Kindai University, Osaka, Japan.

Background/aim: We investigated the plan complexity of volumetric modulated arc therapy (VMAT) with knowledge-based plan (KBP) for oropharyngeal cancer (OPC) with a single optimization and whether it could be used clinically.

Materials And Methods: KBP model was configured using 55 consecutive OPC and nasopharyngeal cancer plans. Plan complexity as a characteristic of multileaf collimator (MLC) motion and γ pass rate (2%/2 mm criterion) were compared between clinical manual plan (CMP) and KBP for other 10 plans. Read More

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Anatomic Description of the Distal and Intercuneiform Articulations: A Cadaveric Study.

J Foot Ankle Surg 2021 Apr 30. Epub 2021 Apr 30.

Assistant Professor, Department of Basic Medical Sciences, Barry University School of Podiatric Medicine, Miami Shores, FL.

The medial, intermediate, and lateral cuneiforms play a pivotal role in foot biomechanics. When correcting deformities of this joint complex understanding the clinical anatomy remains imperative to provide both anatomic reduction and appropriately sized fixation. This study qualitatively and quantitatively describes the distal and intercuneiform articulations and their clinical implications. Read More

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