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Implantation failure

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https://www.readbyqxmd.com/read/28821936/minimally-invasive-plate-augmentation-in-the-treatment-of-long-bone-non-unions
#1
Ki-Chul Park, Chang-Wug Oh, Joon-Woo Kim, Kyeong-Hyeon Park, Jong-Keon Oh, Il-Hyung Park, Hee-Soo Kyung, Jeong Heo
INTRODUCTION: Exchange nailing is most acceptable for treating hypertrophic non-union of the long bones, requiring the removal of previously fixed implant. However, its main effect of mechanical stabilization is controversial in non-isthmal area. We hypothesized that minimally invasive plate augmentation over the non-union site may have a better option, without the need of bone grafting or removing pre-existing implants. MATERIALS AND METHODS: Seventeen patients with hypertrophic non-union of the long bones between 2010 and 2014 on radiography who previously underwent intramedullary (IM) nailing or plate osteosynthesis for long-bone fractures were included...
August 18, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28820968/reduced-activin-receptor-like-kinase-1-activity-promotes-cardiac-fibrosis-in-heart-failure
#2
Kevin J Morine, Xiaoying Qiao, Vikram Paruchuri, Mark J Aronovitz, Emily E Mackey, Lyanne Buiten, Jonathan Levine, Keshan Ughreja, Prerna Nepali, Robert M Blanton, S Paul Oh, Richard H Karas, Navin K Kapur
INTRODUCTION: Activin receptor-like kinase 1 (ALK1) mediates signaling via the transforming growth factor beta-1 (TGFβ1), a pro-fibrogenic cytokine. No studies have defined a role for ALK1 in heart failure. HYPOTHESIS: We tested the hypothesis that reduced ALK1 expression promotes maladaptive cardiac remodeling in heart failure. METHODS AND RESULTS: In patients with advanced heart failure referred for left ventricular (LV) assist device implantation, LV Alk1 mRNA and protein levels were lower than control LV obtained from patients without heart failure...
July 18, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28820558/young-patient-with-advanced-heart-failure-no-longer-a-candidate-for-heart-transplantation-after-mitraclip%C3%A3-%C3%A2-procedure
#3
Cosmo Godino, Andrea Scotti, Eustachio Agricola, Carlo A Pivato, Mauro Chiarito, Stefano Stella, Massimo Maccherini, Alberto Margonato, Antonio Colombo
In Europe, mitral regurgitation (MR) is the second most common form of valvular heart disease requiring surgical treatment. The case is presented of a 36-year-old woman with end-stage heart failure secondary to chemotherapy-induced cardiotoxicity, complicated by severe MR. She was listed for heart transplantation and underwent percutaneous MitraClip® implantation in order to preclude further clinical deterioration while awaiting a suitable donor. The one-year follow-up showed a strong improvement of symptoms and mostly reverse left ventricular remodelling, with consequent removal from the heart transplantation list...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28820557/papillary-muscle-rupture-in-an-adolescent-with-no-coronary-lesions
#4
Tatjana Lejko Zupanc, Mateja Logar
A 21-year-old man with Wolff-Parkinson-White syndrome presented to the authors' hospital with ventricular fibrillation. Coronary angiography failed to demonstrate coronary stenosis, but temporary mechanical circulatory support resolved the ventricular fibrillation and the patient was extubated eight days later. On the next day, however, he had to be re-intubated with symptoms of congestive heart failure. Echocardiography revealed new severe mitral regurgitation and a mobile mass, while emergency surgery revealed a posteromedial papillary muscle rupture (PMR)...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28820408/-thrombophilic-genetic-mutations-and-polymorphisms-in-women-with-infertility-and-failed-in-vitro-fertilization
#5
G Abrahamyan
Occurrence of pregnancy after in vitro fertilization depends of two components: functional adequacy of the embryo at the blastocyst stage and receptivity of endometrium, which, according to modern perception, are determinate in achieving optimal conditions of implantation. From the pregnancy occurrence point of view, as well as in regard to its further development , implantation is the most crucial phase of IVF/ICSI and ET. As the same time, this phase is also the most vulnerable. Multiple researches have proven the role of mother thrombophilia for genesis of gestation complications and early embryo losses, but in relation to this problem i the context of IVF there is still a lot to be detailed...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28819826/the-outcome-of-the-partial-resurfacing-arthroplasty-of-the-hip-shows-high-numbers-of-failures-and-conversion-to-total-arthroplasty
#6
Thilo Floerkemeier, Stefan Budde, Nils Wirries, Gabriela von Lewinski, Henning Windhagen, Marco Ezechieli
PURPOSE: Local cartilage and bony defects, which are too large for joint preserving cartilage treatment are difficult to treat. The implantation of a mini-resurfacing implant (Hemicap®, 2med, Hamburg, Germany) may be a possible alternative treatment for these patients. This partial replacement fills the defect and restores a smooth and continuous articular surface. The aim of this study was to determine short- to midterm results of the treatment of local cartilage defects of the femoral head using the Hemicap®...
August 17, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28819694/thoracic-corpectomy-for-neoplastic-vertebral-bodies-using-a-navigated-lateral-extracavitary-approach-a-single-center-consecutive-case-series-technique-and-analysis
#7
Sebastian Hartmann, Christoph Wipplinger, Anja Tschugg, Pujan Kavakebi, Alexander Örley, Pierre Pascal Girod, Claudius Thomé
Thoracic myelopathy is often caused by vertebral body fractures resulting from neoplastic conditions, traumatic events, or infectious diseases. One of the preferred procedures for treating it is the lateral extracavitary approach (LECA) with single-level or multilevel decompressive corpectomy and reconstruction. The aim of this retrospective study was to analyze the thoracic lateral extracavitary approach with corpectomy using vertebral body replacement systems (VBR-S) and dorsal reconstruction. Twenty-four patients with metastatic or primary lesions of thoracic vertebrae T2-T12 underwent spinal decompression and ventral column reconstruction with correction of spinal deformity via a LECA...
August 17, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28818323/medial-buttress-plate-augmentation-of-cannulated-screw-fixation-in-vertically-unstable-femoral-neck-fractures-surgical-technique-and-preliminary-results
#8
Ye Ye, Ke Chen, Kewei Tian, Wuyin Li, Cyril Mauffrey, David J Hak
OBJECTIVE: To evaluate the outcome and complications of unstable Pauwels type 3 femoral neck fractures treated with a combination fixation of three cannulated screws and a medial buttress plate. PATIENTS AND METHODS: From October 2015 to June 2016, 28 patients under 60 years of age with Pauwels type 3 femoral neck fracture were treated with open reduction and internal fixation using a direct anterior approach. Fracture consisted of three cannulated screws augmented with a medial buttress plate...
August 9, 2017: Injury
https://www.readbyqxmd.com/read/28817384/engineering-the-mechanical-and-biological-properties-of-nanofibrous-vascular-grafts-for-in-situ-vascular-tissue-engineering
#9
Jeffrey J D Henry, Jian Yu, Aijun Wang, Randall Lee, Jun Fang, Song Li
Synthetic small diameter vascular grafts have a high failure rate, and endothelialization is critical for preventing thrombosis and graft occlusion. A promising approach is in situ tissue engineering, whereby an acellular scaffold is implanted and provides stimulatory cues to guide the in situ remodeling into a functional blood vessel. An ideal scaffold should have sufficient binding sites for biomolecule immobilization and a mechanical property similar to native tissue. Here we developed a novel method to blend low molecular weight (LMW) elastic polymer during electrospinning process to increase conjugation sites and to improve the mechanical property of vascular grafts...
August 17, 2017: Biofabrication
https://www.readbyqxmd.com/read/28817136/prognosis-of-dental-implants-immediately-placed-in-sockets-affected-by-peri-implantitis-a-retrospective-pilot-study
#10
Eduardo Anitua, Laura Piñas, Leire Begoña, Mohammad Hamdan Alkhraisat
The aim of this study was to describe a protocol and analyze the outcomes of immediate replacement of failed implants due to peri-implantitis. A total of 17 patients (mean age: 58 ± 10 years) had 22 failed implants that were immediately replaced. One implant failed 16 months after insertion, resulting in an implant survival rate of 94.7%. The mean follow-up time was 40 ± 16 months (range: 9-52 months) after insertion. Mesial and distal bone loss were 0.89 ± 0.62 mm and 0.97 ± 0.66 mm, respectively. Immediate implant replacement could be considered in the management of implant failure due to peri-implantitis...
September 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28817125/long-term-retrospective-evaluation-of-success-of-narrow-diameter-implants-in-esthetic-areas-a-consecutive-case-series-with-3-to-14-years-follow-up
#11
Stuart J Froum, Ye Shi, Sang-Choon Cho
This retrospective study reports on the outcome of 19 narrow-diameter implants (NDIs) placed in 14 consecutively treated patients 3 to 14 years postloading. Peri-implant bone remodeling, bone loss, esthetic outcomes, and patient satisfaction with the final restoration were evaluated. No implant failures or prosthetic complications were reported, yielding a 100% survival rate and a 84.2% success rate. All 14 patients reported that they were very satisfied with the esthetic results. The average mesial and distal bone remodeling was 1...
September 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28816877/fractures-in-spinal-ankylosing-disorders-a-narrative-review-of-disease-and-injury-types-treatment-techniques-and-outcomes
#12
Tarush Rustagi, Doniel Drazin, Cumhur Oner, Jonathan York, Gregory D Schroeder, Alexander R Vaccaro, Rod J Oskouian, Jens R Chapman
INTRODUCTION: Spinal ankylosing disorders encompass ankylosing spondylitis (AS), disseminated hyperostosis of the spine, and end-stage spondylosis. All these result in a stiffened and frequently deformed spinal column. This makes the spinal column highly susceptible to severe injuries that are commonly associated with unfavorable outcomes. Improved understanding of the underlying disease processes and clinical comorbidities may alter the poor injury related morbidity and mortality outcomes...
September 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28816194/risk-factors-associated-with-dental-implant-failure-a-study-of-302-implants-placed-in-a-regional-center
#13
Mehmet Oztel, Wojciech M Bilski, Arthur Bilski
AIM: The aim of this research is to determine which risk factors are associated with dental implant failure and survival. MATERIALS AND METHODS: Data pertaining to patients who received one or more dental implants from 2011 to 2013 in a regional center were retrospectively reviewed. This included a total of 302 Biomet 3i NanoTite Tapered Certain implants placed in 177 patients. All patients were followed up until the end of 2015. RESULTS: This study found an overall success rate of 95%...
August 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28815854/expression-of-natural-cytotoxicity-receptors-and-cytokine-production-on-endometrial-natural-killer-cells-in-women-with-recurrent-pregnancy-loss-or-implantation-failure-and-the-expression-of-natural-cytotoxicity-receptors-on-peripheral-blood-natural-killer-cells
#14
Atsushi Fukui, Ayano Funamizu, Rie Fukuhara, Hiroaki Shibahara
AIM: Natural cytotoxicity receptors (NCR) are unique markers that regulate natural killer (NK) cell cytotoxicity and cytokine production. In this study, we investigated the expression of NCR (NKp46, NKp44, and NKp30) and cytokine production in NK cells derived from the uterine endometrium of women with recurrent pregnancy loss (RPL). We also investigated the expression of NCR in peripheral blood NK cells in pregnant women with and without a history of RPL. METHODS: The expression of NCR (NKp46, NKp44, and NKp30) in NK cells (CD56(dim) and CD56(bright) ) in the uterine endometrium was analyzed using 3-color flow cytometry...
August 17, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28814861/the-influence-of-direct-laser-metal-sintering-implants-on-the-early-stages-of-osseointegration-in-diabetic-mini-pigs
#15
Naiwen Tan, Xiangwei Liu, Yanhui Cai, Sijia Zhang, Bo Jian, Yuchao Zhou, Xiaoru Xu, Shuai Ren, Hongbo Wei, Yingliang Song
BACKGROUND: High failure rates of oral implants have been reported in diabetic patients due to the disruption of osseointegration. The aim of this study was to investigate whether direct laser metal sintering (DLMS) could improve osseointegration in diabetic animal models. METHODS: Surface characterizations were carried out on two types of implants. Cell morphology and the osteogenic-related gene expression of MG63 cells were observed under conditions of DLMS and microarc oxidation (MAO)...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28814587/a-case-of-cardiopulmonary-arrest-due-to-spontaneous-coronary-artery-dissection-in-a-pregnant-woman
#16
Emiko Ejima, Yoshinobu Murasato
We present the case of a young pregnant woman with cardiopulmonary arrest due to acute coronary syndrome. Emergent coronary angiography (CAG) and intravascular ultrasound (IVUS) showed extensive coronary artery dissection in the left anterior descending artery, which was treated with primary percutaneous coronary intervention. After managing the heart failure and disseminated intravascular coagulation, a dead fetus was delivered via caesarean section 4 days after admission to the hospital. Follow-up CAG and IVUS at 18 months showed persistent dissection in the non-stented site; hence, another stent was implanted...
August 16, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28812919/comparison-of-primary-and-secondary-enucleation-for-uveal-melanoma
#17
Chau M Pham, Philip L Custer, Steven M Couch
We investigated operative course and post-operative findings of patients undergoing primary enucleation for uveal melanoma versus those requiring secondary enucleation after brachytherapy. A retrospective chart review was performed with IRB approval on patients receiving treatment for uveal melanoma. Patients with enucleation as initial treatment and patients enucleated after plaque brachytherapy were analyzed for demographic data, operative course, and post-enucleation outcome. Further cause analysis for secondary enucleations was investigated...
August 16, 2017: Orbit
https://www.readbyqxmd.com/read/28812410/good-outcome-scores-and-high-satisfaction-rate-after-primary-total-ankle-replacement
#18
Ilka Kamrad, Åke Carlsson, Anders Henricson, Håkan Magnusson, Magnus K Karlsson, Björn E Rosengren
Background and purpose - Total ankle replacement (TAR) is gaining popularity for treatment of end-stage ankle arthritis. Large patient-centered outcome studies are, however, few. Here, we report data from the Swedish Ankle Registry. Patients and methods - We examined outcomes after primary TAR in patients from the Swedish Ankle Registry using PROMs (Patient Reported Outcome Measures; generic: EQ-5D and SF-36, region specific: SEFAS (Self-Reported Foot and Ankle Score), and a question on satisfaction). We included 241 patients registered with primary TAR between 2008 and 2016 and who completed PROMs preoperatively and postoperatively up to 24 months...
August 16, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28812129/-device-based-remote-monitoring-current-evidence
#19
REVIEW
David Duncker, Roman Michalski, Johanna Müller-Leisse, Christos Zormpas, Thorben König, Christian Veltmann
Telemedicine is increasingly used in clinical cardiology. It offers early detection of arrhythmias, technical device follow-up and support of heart failure management. Regarding technical device follow-up, remote monitoring significantly reduces usage of the health care system. Furthermore, remote monitoring is associated with a significantly reduced time from device malfunction to physician's perception of the event. Using remote monitoring, inappropriate ICD (implantable cardioverter defibrillator) shocks can be significantly reduced compared to routine in-office follow-up...
August 15, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28812014/surgical-approach-may-influence-survival-of-large-diameter-head-metal-on-metal-total-hip-arthroplasty-a-6-to-10-year-follow-up-study
#20
Chih-Chien Hu, Tsan-Wen Huang, Shih-Jie Lin, Po-Chun Lin, Feng-Chih Kuo, Kuo-Ti Peng, Kuo-Chin Huang, Hsin-Nung Shih, Mel S Lee
Large-diameter head (LDH) metal-on-metal (MoM) total hip arthroplasty (THA) has lost popularity because of metal allergy or ALTRs (adverse local tissue reactions) in the past decade. Whether the surgical approach may influence the survival of LDH-MoM-THA has not been reported. From 2006 to 2009, we performed 96 LDH-MoM-THAs on 80 patients using an in situ head-neck assembly technique through a modified Watson-Jones approach. With a mean follow-up of 8.4 years (range, 6.3-10.1 years), the implant survival rate was 100%...
2017: BioMed Research International
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