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https://www.readbyqxmd.com/read/28987316/bypass-for-symptomatic-in-stent-carotid-restenosis
#1
Francesco Stilo, Pasqualino Sirignano, Nunzio Montelione, Wassim Mansour, Laura Capoccia, Vincenzo Catanese, Francesco Spinelli, Francesco Speziale
BACKGROUND: To evaluate early and long-term outcomes of symptomatic patients treated for in-stent carotid restenosis (ISR) with carotid bypass (CB). METHODS: Data were retrospectively collected from a prospectively compiled database on patients treated with CB in two high-volume Italian centers between 2008 and 2016, for symptomatic high-grade ISR after CAS. After carotid endarterectomy and stent removal, a greater saphenous vein (GSV) was preferentially employed as the graft; when the GSV was not accessible, a 6mm polytetrafluoroethylene (PTFE) graft was implanted...
September 20, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28914597/combination-of-ultrasonic-decontamination-soft-tissue-curettage-and-submucosal-air-polishing-with-povidone-iodine-application-for-non-surgical-therapy-of-peri-implantitis-12-months-clinical-outcomes
#2
Jamal M Stein, Christian Hammächer, Sareh Said-Yekta Michael
BACKGROUND: The aim of this study was to evaluate the clinical outcomes of a concept for non-surgical peri-implantitis combining stepwise mechanical debridement measures with adjuvant Povidone-iodine application with and without systemic antibiotics. METHODS: 45 patients with chronic periodontitis comprising 164 screw-typed implants with peri-implantitis were included. Peri-implantitis was defined as radiographic bone loss of >2 mm, probing pocket depth (PD) ≥5 mm with bleeding on probing (BOP)...
September 15, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28902415/surgical-treatment-of-peri-implantitis-prognostic-indicators-of-short-term-results
#3
Odd Carsten Koldsland, Johan Caspar Wohlfahrt, Anne Merete Aass
AIM: To evaluate the clinical and radiographic short-term (6 months) effect of surgical treatment of peri-implantitis, and to identify prognostic indicators affecting the outcome using a multilevel statistical model. MATERIAL & METHODS: A total of 143 implants (45 patients) with a diagnosis of progressive peri-implantitis (progressive bone loss ≥2.0mm and BoP/suppuration) received surgical treatment. Clinical and radiographic parameters were assessed 6 months post-operatively...
September 13, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28888523/mechanical-alignment-technique-for-tka-are-there-intrinsic-technical-limitations
#4
C Rivière, F Iranpour, E Auvinet, A Aframian, K Asare, S Harris, J Cobb, S Parratte
BACKGROUND: Mechanically aligned (MA) total knee arthroplasty (TKA) is affected by disappointing functional outcomes in spite of the recent improvements in surgical precision and implant designs. This might suggest the existence of intrinsic technical limitations. Our study aims to compare the prosthetic and native trochlear articular surfaces and to estimate the extent of collateral ligament imbalance, which is technically uncorrectable by collateral ligament release when TKA implants are mechanically aligned...
September 6, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28887958/photoelastic-analysis-of-mandibular-full-arch-implant-supported-fixed-dentures-made-with-different-bar-materials-and-manufacturing-techniques
#5
Danilo Zaparolli, Raniel Fernandes Peixoto, Denise Pupim, Ana Paula Macedo, Marcelo Bighetti Toniollo, Maria da Glória Chiarello de Mattos
PURPOSE: To compare the stress distribution of mandibular full dentures supported with implants according to the bar materials and manufacturing techniques using a qualitative photoelastic analysis. MATERIAL AND METHODS: An acrylic master model simulating the mandibular arch was fabricated with four Morse taper implant analogs of 4.5×6mm. Four different bars were manufactured according to different material and techniques: fiber-reinforced resin (G1, Trinia, CAD/CAM), commercially pure titanium (G2, cpTi, CAD/CAM), cobalt‑chromium (G3, Co-Cr, CAD/CAM) and cobalt‑chromium (G4, Co-Cr, conventional cast)...
December 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28844907/effect-of-different-stent-configurations-using-lattice-boltzmann-method-and-particles-image-velocimetry-on-artery-bifurcation-aneurysm-problem
#6
N Hafizah Mokhtar, Aizat Abas, N A Razak, Muhammad Najib Abdul Hamid, Soon Lay Teong
Proper design of stent for application at specific aneurysm effect arteries could help to reduce the issues with thrombosis and aneurysm. In this paper, four types of stent configuration namely half-Y (6 mm), half-Y (4 mm), cross-bar, and full-Y configuration will implanted on real 3D artery bifurcation aneurysm effected arteries. Comparisons were then conducted based on the flow patterns after stent placement using both LBM-based solver and PIV experimental findings. According to the data obtained from all 4 stent designs, the flow profiles and the computed velocity from both methods were in agreement with each other...
August 24, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28795641/fixation-of-hydrogel-constructs-for-cartilage-repair-in-the-equine-model-a-challenging-issue
#7
Irina A D Mancini, Rafael Angel Vindas Bolanos, Harold Brommer, Miguel Castilho, Alexandro Ribeiro, J P A M van Loon, Anneloes Mensinga, Mattie H P Van Rijen, Jos Malda, René van Weeren
<u><b>Objective</b></u> To evaluate the use of commercial and autologous fibrin glue and of an alternative method based on a 3D-printed polycaprolactone (PCL) anchor for the fixation of hydrogel-based scaffolds in an equine model for cartilage repair. <u><b>Methods</b></u> In a first study, three different hydrogel-based materials were orthotopically implanted in nine horses for 1-4 weeks in 6mm diameter full thickness cartilage defects in the medial femoral trochlear ridge and fixated with commercially available fibrin glue (CFG)...
August 10, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28751181/short-implants-6mm-vs-vertical-bone-augmentation-and-standard-length-implants-%C3%A2-9mm-in-atrophic-posterior-mandibles-a-5-year-retrospective-study
#8
F Pieri, C Forlivesi, E Caselli, G Corinaldesi
This retrospective study compared the 5-year clinical and radiographic outcomes of short implants (6 mm) (short group), and standard-length implants (≥9mm) placed after a vertical augmentation with autologous bone blocks (augmentation group), supporting partial fixed prostheses in the posterior mandible. Forty-five partially edentulous patients were enrolled in the study and evaluated after 5 years: 22 (51 implants) in the augmentation group and 23 (46 implants) in the short group. Eight surgical complications occurred in the augmentation group versus none in the short group (P=0...
July 24, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28747267/a-new-femoral-fixation-device-for-anterior-cruciate-ligament-reconstruction-using-the-outside-in-technique-and-hamstring-tendon-graft-a-comparison-between-two-devices-in-cadaveric-human-knee-models
#9
Suri Chong, Dai-Soon Kwak, Dhanasekaraprabu Balasubramanian, Young Dong Song, Young Gon Na, Tae Kyun Kim
BACKGROUND: A new device (T-anchor) was developed for ACL reconstruction and is implanted via the outside-in technique using hamstring grafts. The purpose of this study was to compare the T-anchor with the EndoButton Direct. METHODS: This study was conducted on 30 cadaveric knees (15 matched pairs). There were two groups of 15 each in the T-anchor and EndoButton Direct groups. After the harvest of grafts, fixation site profile and graft length were measured by loading the grafts onto both devices...
July 23, 2017: Knee
https://www.readbyqxmd.com/read/28734634/immediate-implant-placement-the-fate-of-the-buccal-crest-a-retrospective-cone-beam-computed-tomography-study
#10
E Groenendijk, T A Staas, F E J Graauwmans, E Bronkhorst, L Verhamme, T Maal, G J Meijer
This retrospective study aimed to analyse the fate of the buccal crest after immediate implant placement (IIP) through the use of cone beam computed tomography (CBCT). In 16 consecutive patients, an implant was placed in a more palatal position after extraction, thereby creating a gap of at least 2mm between the implant and the buccal crest. Subsequently, this gap was filled with a bone substitute. Preoperatively, immediate postoperatively, and late postoperatively, a CBCT was made to measure the thickness of the buccal crest...
July 19, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28711169/the-risk-of-suprascapular-and-axillary-nerve-injury-in-reverse-total-shoulder-arthroplasty-an-anatomic-study
#11
Tim Leschinger, Michael Hackl, Eduard Buess, Sebastian Lappen, Martin Scaal, Lars Peter Müller, Kilian Wegmann
PURPOSE: Implantation of a reverse total shoulder arthroplasty (rTSA) places the axillary and suprascapular nerves at risk. The aim of this anatomic study was to digitally analyse the location of these nerves in relation to bony landmarks in order to predict their path and thereby help to reduce the risk of neurological complications during the procedure. METHODS: A total of 22 human cadaveric shoulder specimens were used in this study. The axillary and suprascapular nerves were dissected, and radiopaque threads were sutured onto the nerves without mobilizing the nerves from their native paths...
June 28, 2017: Injury
https://www.readbyqxmd.com/read/28650136/platform-switching-and-super-short-implants-an-effective-technique-to-manage-residual-jaws-bone-volume
#12
Graziano Montaruli, Michele Laurenziello, Lucio Lo Russo, Luigi Laino, Lorenzo Lo Muzio, Domenico Ciavarella
INTRODUCTION: Authors describe and analyze an implant-prosthetic rehabilitation of posterior partially edentulous jaw by using a super-short implant, according to the platform switching technique, on which a lithium disilicate made crown was cemented. METHODS: One event of partially edentulous jaw in 2.6 region needing implant-prosthetic rehabilitationwas selected for this treatment. Because of the lack of vertical bone, a super-short implant (6mm in diameter and 6mm in length) has been placed according to the platform switching technique by using surgical and prosthetic components lower in diameter compared to the diameter of the implant's platform...
June 23, 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28648794/in%C3%A2-vitro-and-in%C3%A2-vivo-evaluation-of-a-small-caliber-coaxial-electrospun-vascular-graft-loaded-with-heparin-and-vegf
#13
Yun-Tao Hu, Xu-Dong Pan, Jun Zheng, Wei-Guo Ma, Li-Zhong Sun
INTRODUCTION: To date, clinically available expanded polytetrafluoro-ethylene (ePTFE) vascular grafts are suboptimal for reconstructing small caliber (D < 6 mm) arteries, owing to thrombosis in early and restenosis in late stage. Our aim in this preliminary study was to fabricate a nano-fibrous vascular graft which was biofunctionalized with VEGF165 and heparin. The short term performance was evaluated both in vitro and in vivo. METHOD: Four-mm caliber grafts were prepared by the coaxial-elctrospun technique, which consisted of poly(l-lactide-co-caprolactone) [P(LLA-CL)] collagen and elastin...
June 22, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28633957/displacement-patterns-of-stranded-i-125-seeds-after-permanent-brachytherapy-of-the-prostate-dosimetry-in-the-operating-room-put-into-perspective
#14
Marcel J Steggerda, Ferrie van den Boom, Thelma Witteveen, Luc M F Moonen
BACKGROUND AND PURPOSE: The reliability of post-implant dosimetry in the OR depends on the geometrical variability of implant and anatomy after the procedure. The purpose was to gain detailed information on seed displacement patterns in different sectors of the prostate. MATERIALS AND METHODS: Of 33 patients with stranded seed implants the seed geometry and the dose distribution were compared between the situation in the OR just after the procedure, based on ultrasound images, and the situation after 1month, based on registered CT and MR images...
June 17, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28612344/description-and-ultrasound-targeting-of-the-origin-of-the-suprascapular-nerve
#15
P Laumonerie, F LapÈgue, E Chantalat, N Sans, P Mansat, M Faruch
Anatomical variations in the suprascapular nerve (SSN) and its depth in the suprascapular notch can make it difficult to target with ultrasonography (US). One alternative could be a proximal approach to the SSN, if US provides a reliable description of its origin (orSSN). The primary objective of this study was to demonstrate that US can reliably locate the orSSN. The secondary objective was to describe the features of the proximal SSN. Seventy brachial plexuses (BPs) from 30 healthy volunteers (60 BPs) and 5 cadavers (10 BPs) were included...
September 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28579164/impact-of-strut-thickness-on-acute-mechanical-performance-a-comparison-study-using-optical-coherence-tomography-between-desolve-150-and-desolve-100
#16
Niklas F Boeder, Oliver Dörr, Timm Bauer, Alessio Mattesini, Albrecht Elsässer, Christoph Liebetrau, Stephan Achenbach, Christian W Hamm, Holger M Nef
OBJECTIVE: To evaluate the acute performance of a novolimus-eluting bioresorbable scaffold (BRS) with different strut thickness (DESolve system 150 and 100) using optical coherence tomography (OCT) in terms of appropriate scaffold deployment. BACKGROUND: Outcome after BRS implantation seen in registries and meta-analyses continue to show a higher rate of scaffold thrombosis than those reported with DES. Thus, second scaffold generations with lower strut thickness might have potential advantages in terms of flow disturbance...
May 24, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28556436/effect-of-recombinant-human-bone-morphogenic-protein-9-rhbmp9-loaded-onto-bone-grafts-versus-barrier-membranes-on-new-bone-formation-in-a-rabbit-calvarial-defect-model
#17
Masako Fujioka-Kobayashi, Eizaburo Kobayashi, Benoit Schaller, Matthias Mottini, Richard J Miron, Nikola Saulacic
Recent research has demonstrated that recombinant human bone morphogenetic protein 9 (rhBMP9) has been considered the most osteoinductive growth factor of the BMP-family. In the present study, rhBMP9 was investigated for its influence in combination with two biomaterials for bone regenerative medicine. Either porcine-derived collagen membrane (CM) or deproteinized bovine bone mineral (DBM) combined with 20 µg of rhBMP9 were implanted in 6 mm rabbit calvarial defects. Bone augmentation was evaluated by microCT and histomorphometry at 8 weeks post-surgery...
May 27, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28553857/the-position-of-the-mental-foramen-in-dentate-and-edentulous-mandibles-clinical-and-surgical-relevance
#18
Antonios Charalampakis, Georgios Kourkoumelis, Christina Psari, Vassilios Antoniou, Maria Piagkou, Theano Demesticha, Evangelos Kotsiomitis, Theodore Troupis
BACKGROUND: The knowledge of the exact location of the mental foramen (MF) in dentate and edentulous mandibles is clinically important when constructing complete dentures, performing anaesthetic block of the lower-anterior teeth area and intervening in the MF nearby area. In edentulous mandibles, the bone resorption after teeth loss makes the mental nerve (MN) prone to damage due to the extreme location of the MF very close to the alveolar crest (AC). Chronic compression on the MN may result in pain in the area of MN distribution (ipsilateral face and cheek area) and numbness at the lower lip...
May 29, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28549683/findings-from-the-experience-with-the-punch-technique-for-auditory-osseointegrated-implants-a-retrospective-single-center-comparative-study
#19
Alfonso Bonilla, Carlos Magri, Eulalia Juan
OBJECTIVE: To compare the punch technique and linear incision with soft tissue reduction for the placement of auditory osseointegrated implants (AOI) and analyze results of osseointegration obtained with the punch technique as measured with the Implant Stability Quotient (ISQ). METHODS: Case review of 34 patients who received auditory osseointegrated implants between January 2010 and July 2015 and were divided into two groups according to the surgical technique: 18 with the punch technique (PT) and 16 with the linear incision technique (LI)...
May 23, 2017: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/28542904/can-resonance-frequency-analysis-rfa-detect-narrow-marginal-bone-defects-around-dental-implants-an-ex-vivo-animal-pilot-study
#20
Coral Jie Yao, Li Ma, Nikos Mattheos
BACKGROUND: Resonance Frequency Analysis (RFA) is widely applied to assess implant stability, as expressed by Implant Stability Quotient (ISQ). However, the relation between ISQ value and the presence and extent of narrow marginal bone defects around implants has not been documented. PURPOSE: To investigate the potential of RFA devices to identify the presence and extent of marginal bone defects around implants, as expressed by the ISQ values. MATERIALS AND METHODS: 28 Straumann bone level implants (BL) and 28 bone level tapered implants (BLT), were placed ex-vivo in porcine ribs...
May 25, 2017: Australian Dental Journal
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