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https://www.readbyqxmd.com/read/28110459/calcium-phosphate-ceramics-and-polysaccharide-based-hydrogel-scaffolds-combined-with-mesenchymal-stem-cell-differently-support-bone-repair-in-rats
#1
Sophie Frasca, Françoise Norol, Catherine Le Visage, Jean-Marc Collombet, Didier Letourneur, Xavier Holy, Elhadi Sari Ali
Research in bone tissue engineering is focused on the development of alternatives to autologous bone grafts for bone reconstruction. Although multiple stem cell-based products and biomaterials are currently being investigated, comparative studies are rarely achieved to evaluate the most appropriate approach in this context. Here, we aimed to compare different clinically relevant bone tissue engineering methods and evaluated the kinetic repair and the bone healing efficiency supported by mesenchymal stem cells and two different biomaterials, a new hydrogel scaffold and a commercial hydroxyapatite/tricalcium phosphate ceramic, alone or in combination...
February 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28109862/twist-drill-procedure-for-chronic-subdural-hematoma-evacuation-an-analysis-of-predictors-for-treatment-success
#2
F Jablawi, H Kweider, O Nikoubashman, H Clusmann, G A Schubert
BACKGROUND: Twist drill craniostomy (TDC) is a "minimally invasive" and cost-effective technique to treat chronic subdural hematomas (CSDH). Predictors for treatment success such as imaging characteristics, hematoma volume, and drainage volume - are not established, thus they are purpose of this analysis. MATERIAL AND METHODS: We retrospectively evaluated all data of CSDH patients undergoing TDC in our institution between January 2010 and December 2013. We analyzed imaging characteristics (extension and composition), volumetrically calculated pre- and postoperative hematoma volumes, measured drainage volume, and clinical course...
January 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28109564/development-of-a-surgical-navigation-system-based-on-3d-slicer-for-intraoperative-implant-placement-surgery
#3
Xiaojun Chen, Lu Xu, Huixiang Wang, Fang Wang, Qiugen Wang, Ron Kikinis
Implant placement has been widely used in various kinds of surgery. However, accurate intraoperative drilling performance is essential to avoid injury to adjacent structures. Although some commercially-available surgical navigation systems have been approved for clinical applications, these systems are expensive and the source code is not available to researchers. 3D Slicer is a free, open source software platform for the research community of computer-aided surgery. In this study, a loadable module based on Slicer has been developed and validated to support surgical navigation...
January 18, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28109496/preliminary-experience-using-a-cochlear-implant-with-a-novel-linear-pedestal-design
#4
William J Parkes, Joshua J Gnanasegaram, Sharon L Cushing, Adrian L James, Karen A Gordon, Blake C Papsin
OBJECTIVE: To assess the safety and efficiency of cochlear implantation using a novel device with a linear silastic pedestal (2 mm wide, 2 mm deep, 10 mm long) on the flat undersurface. METHODS: Operative times required to drill a linear groove (LG) for the new linear pedestal design were prospectively accrued for 46 implantations in 30 children (median age 3). Intra-operative safety was assessed during each case. Instances of dural exposure in the base of the LG were noted...
February 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28109296/design-of-simulation-based-medical-education-and-advantages-and-disadvantages-of-in-situ-simulation-versus-off-site-simulation
#5
EDITORIAL
Jette Led Sørensen, Doris Østergaard, Vicki LeBlanc, Bent Ottesen, Lars Konge, Peter Dieckmann, Cees Van der Vleuten
BACKGROUND: Simulation-based medical education (SBME) has traditionally been conducted as off-site simulation in simulation centres. Some hospital departments also provide off-site simulation using in-house training room(s) set up for simulation away from the clinical setting, and these activities are called in-house training. In-house training facilities can be part of hospital departments and resemble to some extent simulation centres but often have less technical equipment. In situ simulation, introduced over the past decade, mainly comprises of team-based activities and occurs in patient care units with healthcare professionals in their own working environment...
January 21, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28108236/comparison-between-piezosurgery-and-conventional-osteotomy-in%C3%A2-cranioplasty-with-fronto-orbital-advancement
#6
Markus Martini, Andreas Röhrig, Rudolf Hermann Reich, Martina Messing-Jünger
BACKGROUND: Cranioplasty of patients with craniosynostosis requires rapid, precise and gentle osteotomy of the skull to avoid complications and benefit the healing process. The aim of this prospective clinical study was to compare two different methods of osteotomy. Piezosurgery and conventional osteotomy were compared using an oscillating saw and high speed drill while performing cranioplasties with fronto-orbital advancement. METHODS: Thirty-four children who required cranioplasty with fronto-orbital advancement were recruited consecutively...
December 21, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28106972/endoscopic-hand-drill-for-management-of-tracheal-stenosis
#7
Sandro Batzella Sandro Batzella, Gabriele Lucantoni, Giovanni Galluccio, Mario Santini, Umberto Caterino Umberto Caterino, Alfonso Reginelli, Alfonso Fiorelli Alfonso Fiorelli
We propose the use of a new endoscopic drill for management of web-like tracheal stenosis. Our device allows creating radial holes within stenosis that facilitates the use of the scissors for cutting the  scar and the subsequent mechanical dilatation.
January 17, 2017: Multimedia Manual of Cardiothoracic Surgery: MMCTS
https://www.readbyqxmd.com/read/28106091/mercury-enrichment-indicates-volcanic-triggering-of-valanginian-environmental-change
#8
Guillaume Charbonnier, Chloé Morales, Stéphanie Duchamp-Alphonse, Stéphane Westermann, Thierry Adatte, Karl B Föllmi
The Valanginian stage (Early Cretaceous) includes an episode of significant environmental changes, which are well defined by a positive δ(13)C excursion. This globally recorded excursion indicates important perturbations in the carbon cycle, which has tentatively been associated with a pulse in volcanic activity and the formation of the Paraná-Etendeka large igneous province (LIP). Uncertainties in existing age models preclude, however, its positive identification as a trigger of Valanginian environmental changes...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28104208/first-in-human-evaluation-of-a-novel%C3%A2-polymer-free-drug-filled-stent-angiographic-ivus-oct-and-clinical-outcomes-from%C3%A2-the%C3%A2-revelution-study
#9
Stephen G Worthley, Alexandre Abizaid, Ajay J Kirtane, Daniel I Simon, Stephan Windecker, Sandeep Brar, Ian T Meredith, Sharad Shetty, Ajay Sinhal, Alexandra Popma Almonacid, Daniel Chamié, Akiko Maehara, Gregg W Stone
OBJECTIVES: This study sought to assess the safety and effectiveness of the drug-filled stent (DFS) (Medtronic, Santa Rosa, California) in the treatment of patients with coronary artery disease. BACKGROUND: Polymer-free drug-eluting stents have the potential to improve clinical outcomes and facilitate shorter durations of dual antiplatelet therapy. The polymer-free DFS is made from a trilayered continuous wire with an outer cobalt chromium layer, a middle tantalum layer, and an inner lumen coated with sirolimus...
January 23, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28101880/family-emergency-plan-and-preparedness-among-medical-practitioners-in-zaria-nigeria
#10
Jerry Godfrey Makama, Istifanus Anekoson Joshua, Elizabeth Jerry Makama
BACKGROUND: There has been an increase in the incidence of disasters in many parts of the world. Similarly, Nigeria has witnessed a recent increase of man-made disaster events such as plane crash, fire incidents, flood, and building collapse, including bomb blast orchestrated by terrorists that often create emergency situations. Therefore, the aim of the study was to evaluate family emergency plan and preparedness among medical practitioners in Zaria. METHODS: This was a cross-sectional descriptive study (May-July, 2013) of medical practitioners in Zaria, Nigeria...
November 2016: Journal of Emergency Management: JEM
https://www.readbyqxmd.com/read/28101631/lumbar-and-sacral-pedicle-screw-placement-using-a-template-does-not-improve-the-midterm-pain-and-disability-outcome-in-comparison-with-free-hand-method
#11
Matjaz Merc, Gregor Recnik, Zmago Krajnc
BACKGROUND: The free-hand technique carries a higher risk of pedicle weakening and neurovascular injuries in comparison with pedicle screw placement using a drill guide. Due to this evidence and because of some variances in the surgical method, different outcome can be expected. The objective of the study was to evaluate the disability, the back and leg pain before and at least 3 years after the surgery between examined groups. MATERIALS AND METHODS: Eleven patients in drill guide and 13 in control group were randomly assigned for vertebral fusion in the lumbar and first sacral regions...
January 19, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28099737/decreased-rates-of-shoulder-dystocia-and-brachial-plexus-injury-via-an-evidence-based-practice-bundle
#12
Laura E Sienas, Herman L Hedriana, Suzanne Wiesner, Barbara Pelletreau, Machelle D Wilson, Laurence E Shields
OBJECTIVE: To evaluate whether a standardized approach to identify pregnant women at risk for shoulder dystocia (SD) is associated with reduced incidence of SD and brachial plexus injury (BPI). METHODS: Between 2011 and 2015, prospective data were collected from 29 community-based hospitals in the USA during implementation of an evidence-based practice bundle, including an admission risk assessment, required "timeout" before operative vaginal delivery (OVD), and low-fidelity SD drills...
February 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28099339/pedicle-screw-placement-accuracy-of-bone-mounted-miniature-robot-system
#13
Tai-Hsin Tsai, Rong-Dar Tzou, Yu-Feng Su, Chieh-Hsin Wu, Cheng-Yu Tsai, Chih-Lung Lin
This article describes factors affecting the accuracy of transpedicle screw placements performed with the Renaissance robot-guided system and reviews the relevant literature. Between January 2013 and January 2015, Renaissance robot-guided spinal surgery was performed in 125 patients at Kaohsiung Medical University Hospital in Kaohsiung, Taiwan. The surgeries included 662 transpedicle screw implants and 49 Kirschner wire (K-wire) reimplants performed by intraoperative repositioning. The lead author evaluated the accuracy of all K-wire insertions and classified their accuracy into 3 categories relative to the preoperative plan for transpedicle screw placement...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28098575/obstetric-anesthesia-liability-concerns
#14
Joanna M Davies, Linda S Stephens
Obstetric practice carries a high risk of medical liability and involves both obstetricians and anesthesiologists. Analysis of data from the Anesthesia Closed Claims Project database shows an increase in the proportion of anesthesia claims for maternal death and brain damage between the 1990s and 2000 and later, primarily due to hemorrhage. The proportion of claims for newborn brain damage remained unchanged while those for maternal nerve injury and minor injuries decreased. Use of massive transfusion protocols and clinical drills have been shown to improve outcomes from hemorrhage...
January 16, 2017: Clinical Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28097248/transpedicular-endoscopic-surgery-for-lumbar-spinal-synovial-cyst-report-of-two-cases
#15
Guntram Krzok, Albert E Telfeian, Ralf Wagner, Menno Iprenburg
BACKGROUND: Lumbar facet cysts are a benign, degenerative, and fairly uncommon cause for lumbar radiculopathy. The standard surgical treatment for lumbar facet cysts often requires a laminectomy and medial facetectomy which can further destabilize a pathological motion segment. The authors present here a novel technique for transpedicular endoscopic access to the pathology that obviates the need to violate the lamina or facet. METHODS: Two patient cases are described where the lumbar 4-5 facet cysts arise medial to the pedicle...
December 2016: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/28095522/correlation-between-resonance-frequency-analysis-and-bone-quality-assessments-at-dental-implant-recipient-sites
#16
Min-Wen Fu, Earl Fu, Fu-Gong Lin, Wei-Jeng Chang, Yao-Dung Hsieh, E-Chin Shen
PURPOSE: To evaluate whether primary implant stability could be used to predict bone quality, the association between the implant stability quotient (ISQ) value and the bone type at the implant site was evaluated. MATERIALS AND METHODS: Ninety-five implant sites in 50 patients were included. Bone type (categorized by Lekholm and Zarb) at the implant site was initially assessed using presurgical dental radiography. During the preparation of the implant site, a bone core specimen was carefully obtained...
January 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28092341/unilateral-spinous-process-non-covering-hook-type-patient-specific-drill-template-for-thoracic-pedicle-screw-fixation-a-pilot-clinical-trial-and-template-classification
#17
Sang Bum Kim, Yougun Won, Hyun Jin Yoo, Lee Jae Sin, John M Rhee, Sang Wook Lee, Gi-Soo Lee
STUDY DESIGN: Prospective Clinical Pilot tudy OBJECTIVE.: To confirm the accuracy of thoracic pedicle screw placement by using the unilateral spinous non-covering hook type patient-specific drill template (PSDT) made through rapid prototyping (RP) and to analyze previously reported PSDT designs and their characteristics. SUMMARY OF BACKGROUND DATA: Pedicle screw fixation is the most common form of the posterior instrumentation of the thoracic and lumbar spine. Various techniques have been introduced to improve pedicle screw placement...
January 13, 2017: Spine
https://www.readbyqxmd.com/read/28091812/erratum-to-rib-resection-using-a-pneumatic-high%C3%A2-speed-power-drill-system-for-lung-cancer-with-chest-wall-invasion-our-clinical-experience
#18
Yuichiro Ueda, Tatsuo Nakagawa, Toshiya Toyazaki, Naohisa Chiba, Masashi Gotoh
No abstract text is available yet for this article.
January 13, 2017: Surgery Today
https://www.readbyqxmd.com/read/28090138/agility-training-in-young-elite-soccer-players-promising-results-compared-to-change-of-direction-drills
#19
A Chaalali, M Rouissi, M Chtara, A Owen, N L Bragazzi, W Moalla, A Chaouachi, M Amri, K Chamari
The aim of this study was to compare the effect of two different training programmes - change of direction (COD) vs. agility (AG) - on straight sprint (SS), COD and AG test performances in young elite soccer players. Thirty-two soccer players (age: 14.5±0.9 years; height: 171.2±5.1 cm; body mass: 56.4±7.1 kg, body fat: 10.3±2.3%) participated in a short-term (6 weeks) training study. Players were randomly assigned to two experimental groups - training with change of direction drills (COD-G, n=11) or using agility training (AG-G, n= 11) - and to a control group (CON-G, n=10)...
December 2016: Biology of Sport
https://www.readbyqxmd.com/read/28088942/a-distal-lock-electromagnetic-targeting-device-for-intramedullary-nailing-suggestions-and-clinical-experience
#20
Guido Antonini, Wilfried Stuflesser, Cornelio Crippa, Georgios Touloupakis
PURPOSE: To describe our clinical experience with a system named SureShot? Distal Targeting (Smith & Nephew, Memphis, USA) based on magnetic field presence and discuss our suggestions on this technique. METHODS: We analysed prospectively 47 patients affected by humeral, tibial or femoral fractures, treated in our institution during a 3-year period of time (August 2010 to September 2013). We considered the following parameters: the time to set up, the time to position a single screw, the effectiveness of the system (drilling ad screwing), the irradiation exposure time during distal locking procedure and surgical complications...
December 1, 2016: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
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