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https://www.readbyqxmd.com/read/28339448/efficacious-dorsal-root-ganglion-stimulation-for-painful-small-fiber-neuropathy-a-case-report
#1
Paolo Maino, Eva Koetsier, Alain Kaelin-Lang, Claudio Gobbi, Roberto Perez
Small fiber neuropathy is a disorder of the peripheral nerves with typical symptoms of burning, sharp, and shooting pain and sensory disturbances in the feet. Pain treatment depends principally on the underlying etiology with concurrent administration of antidepressants, anticonvulsants, opioids, and topical treatments like capsaicin and local anesthetics. However, treatments for pain relief in these patients frequently fail. We describe the first case of intractable painful small fiber neuropathy of the foot successfully treated with spinal cord stimulation of the left L5 dorsal root ganglion...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28339315/identification-of-asymptomatic-prosthetic-joint-infection-microbiologic-and-operative-treatment-outcomes
#2
Przemysław L Bereza, Alicja Ekiel, Aleksandra Auguściak-Duma, Małgorzata Aptekorz, Iwona Wilk, Piotr Wojciechowski, Damian J Kusz, Gayane Martirosian
BACKGROUND: This prospective study investigated the role of mechanical and biological factors in aseptic implant loosening or presumed silent prosthetic joint infection (PJI). METHODS: Thirty-seven patients were investigated. Microbiologic and molecular methods were used to detect bacteria on the surface of the failed implants removed during revision arthroplasty. Histopathologic analysis was performed. The influence of body mass index (BMI) and various co-morbidities on implant failure also was determined...
March 24, 2017: Surgical Infections
https://www.readbyqxmd.com/read/28333779/impact-of-chronic-suppurative-otitis-media-in-pediatric-cochlear-implant-recipients-insight-into-the-challenges-from-a-tertiary-referral-center-in-uk
#3
Paramita Baruah, Kate Hanvey, Richard Irving, Konstance Tzifa
OBJECTIVE: Analyze the presentation and evolution of chronic suppurative otitis media (CSOM) in children with cochlear implants (CI) and explore the merit of early intervention. STUDY DESIGN: Retrospective patient review. SETTING: Tertiary referral hospital and cochlear implant programme. PATIENTS: Children with a CI who developed CSOM. INTERVENTION: Tympanoplasty. MAIN OUTCOME MEASURES: Disease control, recurrence of cholesteatoma, cochlear implant preservation...
March 22, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28332156/the-pathology-of-failed-mckee-farrar-implants-correlation-with-modern-metal-on-metal-implant-failure
#4
Mitsuru Munemoto, George Grammatopoulos, Yasuhito Tanaka, Max Gibbons, Nicholas A Athanasou
The McKee-Farrar (MF) prosthesis was the first widely used total hip replacement (THR) to employ a metal-on-metal (MoM) articulation. These implants had a high rate of early aseptic loosening but a number achieved good long-term implant survival, stimulating the reintroduction of second and third generation implants of this type. In this study we analysed archival histopathology of periprosthetic tissues in twenty cases of MF aseptic implant failure to determine if there was evidence of an innate and adaptive immune response similar to that seen in modern MoM implants...
May 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28331930/single-cycle-to-failure-in-bending-of-three-titanium-polyaxial-locking-plates
#5
Chadi Eid, Filippo Maria Martini, Andrea Bonardi, Filippo Lusetti, Anna Brandstetter de Belesini, Gianni Nicoletto
OBJECTIVE: Evaluation of the bending properties in one direction of three titanium polyaxial locking plate systems. MATERIALS AND METHODS: The Polyaxial Advanced Locking System (PAX(®)) straight plate (PAX SP), the PAX(®) reconstruction plate (PAX RP), and the VetLOX reconstruction plates (VetLOX) were evaluated individually and as constructs applied to a bone model simulating a fracture gap and compared using a two-way analysis of variance and Tukey post-hoc analysis...
March 23, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28330516/treatment-of-severe-refractory-valvar-pulmonary-stenosis-with-primary-transcatheter-pulmonary-valve-implantation
#6
Kalyani R Trivedi, Laurence Robinson, Alain Fraisse
Some patients with pulmonary valve stenosis do not respond to balloon valvuloplasty and must undergo surgical repair. We report the case of a 12-year-old child with pulmonary valve stenosis and Noonan syndrome in whom we performed transcatheter Melody pulmonary valve implantation after balloon dilation failed. The result was excellent. This technique can be proposed as an alternative to surgery in such cases.
March 23, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28327697/seven-mm-long-dental-implants-in-posterior-jaws-3-year-report-of-an-ongoing-prospective-single-cohort-study
#7
Paulo Maló, Miguel de Araújo Nobre, Armando Lopes, Inês Gonçalves, Mariana Nunes
PURPOSE: To report on the outcome of 7 mm long implants in the rehabilitation of posterior areas of atrophic jaws 3 years after loading. MATERIALS AND METHODS: This prospective study included 127 patients treated with 217 implants supporting 165 fixed prostheses. Final abutments were delivered at surgery stage and in the large majority of patients (n = 116) the implants (n = 199) were loaded after 4 months. Primary outcome measures were implant success and prosthetic success calculated at patient level; secondary outcome measures were complications, and marginal bone level changes calculated at patient level...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28327695/do-repeated-changes-of-abutments-have-any-influence-on-the-stability-of-peri-implant-tissues-one-year-post-loading-results-from-a-multicentre-randomised-controlled-trial
#8
Marco Esposito, Eriberto Bressan, Maria Gabriella Grusovin, Ferdinando D'Avenia, Konrad Neumann, Luca Sbricoli, Giuseppe Luongo
PURPOSE: To evaluate the influence of at least three abutment changes in conventionally loaded implants against placement of a definitive abutment in immediately non-occlusal loaded implants on hard and soft tissue changes. MATERIALS AND METHODS: Eighty patients requiring one single crown or one fixed partial prosthesis supported by a maximum of three implants were randomised, after implants were placed with more than 35 Ncm, according to a parallel group design to receive definitive abutments which were loaded immediately (definitive abutment or immediate loading group) or transmucosal abutments...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28327694/safety-and-efficacy-of-a-biomimetic-monolayer-of-permanently-bound-multiphosphonic-acid-molecules-on-dental-implants-3-years-post-loading-results-from-a-pilot-quadruple-blinded-randomised-controlled-trial
#9
Marco Esposito, Ivan Dojcinovic, Sabrina Buchini, Péter Péchy, Björn-Owe Aronsson
PURPOSE: To evaluate the safety and clinical efficacy of a novel surface treatment (SurfLink, Nano Bridging Molecules, Gland, Switzerland) on titanium dental implants. SurfLink consists of a monolayer of permanently bound multiphosphonic acid molecules, which mimics the surface of naturally occurring hydroxyapatite. MATERIALS AND METHODS: Twenty-three patients requiring at least two single dental implants had their sites randomised according to a split-mouth design to receive one titanium grade 4 implant treated with SurfLink and one untreated control implant...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28327692/immediate-immediate-delayed-6%C3%A2-weeks-and-delayed-4%C3%A2-months-post-extractive-single-implants-1-year-post-loading-data-from-a-randomised-controlled-trial
#10
Marco Esposito, Giovanni Zucchelli, Gioacchino Cannizzaro, Luigi Checchi, Carlo Barausse, Anna Trullenque-Eriksson, Pietro Felice
PURPOSE: To compare the clinical outcome of single implants placed immediately after tooth extraction with implants placed 6 weeks after tooth extraction (immediate-delayed placement), and with implants placed after 4-month extraction and socket healing (delayed placement). MATERIALS AND METHODS: Two-hundred and ten (210) patients requiring a single implant-supported crown to replace a tooth to be extracted were randomised to receive immediate post-extractive implants (70 patients), immediate-delayed implants at 6 weeks (70 patients), and delayed implants after 4 months of healing (70 patients) according to a parallel group design...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28326418/combining-a-hip-arthroplasty-stem-with-trochanteric-reattachment-bolt-and-a-polyaxial-locking-plate-in-the-treatment-of-a-periprosthetic-fracture-below-a-well-integrated-implant
#11
Urban Hedlundh, Lars Karlsson
Distally anchored uncemented modular tapered porous stems are often the preferred treatment in total hip arthroplasty revisions and failed subtrochanteric fractures. These conditions mainly affect elderly osteoporotic patients, with an increased risk of later fractures below the well-fixated implant. Treatment in secondary fractures with long looking plates is the recommended treatment, where stability is a key to fracture healing. We report a complicated case in which this was achieved by an innovative technique combing the trochanteric attachment bolt of the stem system and a locking plate with polyaxial screws...
December 2016: Arthroplasty Today
https://www.readbyqxmd.com/read/28325425/treatment-of-scaphotrapeziotrapezoid-osteoarthritis-with-the-pyrocardan-%C3%A2-implant-results-with-a-minimum-follow-up-of-2-years
#12
E Gauthier, M-V Truffandier, E Gaisne, P Bellemère
The aim of this study was to report the results of arthroplasty using a mobile pyrocarbon implant (Pyrocardan(®)) for isolated scaphotrapeziotrapezoid (STT) osteoarthritis. The hypothesis was that this arthroplasty leads to functional improvement without carpal instability. Twenty patients (22 implants) were included with a minimum follow-up of 2 years and an average age of 59.6 years. Outcome criteria were pain (VAS scale), QuickDASH and PRWE scores, strength (grip and pinch), wrist mobility, the Kapandji index, carpal height and the capitolunar angle measured on X-rays...
April 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28324276/the-cytotoxicity-and-genotoxicity-of-particulate-and-soluble-cobalt-in-human-urothelial-cells
#13
Rachel M Speer, Therry The, Hong Xie, Louis Liou, Rosalyn M Adam, John Pierce Wise
Cobalt use is increasing particularly due to its use as one of the primary metals in cobalt-chromium-molybdenum (CoCrMo) metal-on-metal prosthetics. CoCrMo is a high-strength, wear-resistant alloy with reduced risk for prosthetic loosening and device fracture. More than 500,000 people receive hip implants each year in the USA which puts them at potential risk for exposure to metal ions and particles released by the prosthetic implants. Data show cobalt ions released from prosthetics reach the bloodstream and accumulate in the bladder...
March 21, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28322477/impact-of-insurance-provider-on-overall-costs-in-failed-back-surgery-syndrome-a-cost-study-of-122-827-patients
#14
Aladine A Elsamadicy, Samuel Harrison Farber, Siyun Yang, Syed Mohammed Qasim Hussaini, Kelly R Murphy, Amanda Sergesketter, Carter M Suryadevara, Promila Pagadala, Beth Parente, Jichun Xie, Shivanand P Lad
OBJECTIVES: Failed back surgery syndrome (FBSS) affects 40% of patients following spine surgery with estimated costs of $20 billion to the US health care system. The aim of this study was to assess the cost differences across the different insurance providers for FBSS patients. METHODS: A retrospective longitudinal study was performed using the Truven MarketScan(®) database to identify FBSS patients from 2001 to 2012. Patients were grouped into Commercial, Medicaid, or Medicare cohorts...
March 21, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28321265/introducing-the-bone-screw-fastener-for-improved-screw-fixation-in-orthopedic-surgery-a-revolutionary-paradigm-shift
#15
Philip F Stahel, Nicholas A Alfonso, Corey Henderson, Todd Baldini
BACKGROUND: Conventional screws used for fracture fixation in orthopedic surgery continue to rely on the historic buttress thread design. While buttress screws generally provide solid resistance against unidirectional axial loading forces, their design suffers from several limitations, as the buttress thread does not adequately resist multiaxial forces. Furthermore, the buttress screw is prone to stripping at the bone-screw interface and can cause microfracturing of the surrounding bone due to its thread design...
2017: Patient Safety in Surgery
https://www.readbyqxmd.com/read/28320990/comorbidities-and-complications-in-nonagenarians-undergoing-coronary-angiography-and-intervention
#16
Mohamed Gayed, Nour Yadak, Waad Qamhia, Yunis Daralammouri, Marc-Alexander Ohlow
Elderly people represent the fastest growing portion of cardiovascular patients. We aimed to analyze the clinical presentation, risk factors, co-morbidities, complications, and mortality in patients 90 years or more who underwent coronary angiography and intervention.We retrospectively studied 108 (0.25% of 43,385) consecutive patients ≥ 90 years undergoing cardiac catheterization and/or intervention in a tertiary specialist hospital between 2003 and 2014.Most patients (68.5%) were introduced on an emergency basis, especially with acute coronary syndrome (ACS) (63...
March 21, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28319551/a-contemporary-medicolegal-analysis-of-implanted-devices-for-chronic-pain-management
#17
Christopher R Abrecht, Penny Greenberg, Ellen Song, Richard D Urman, James P Rathmell
BACKGROUND: Analysis of closed malpractice claims allows the study of rare but serious complications and likely results in improved patient safety by raising awareness of such complications. Clinical studies and closed claims analyses have previously reported on the common complications associated with intrathecal drug delivery systems (IDDS) and spinal cord stimulators (SCS). This study provides a contemporary analysis of claims from within the past 10 years. METHODS: We performed a closed claims analysis for a period January 1, 2009 to December 31, 2013 for cases with pain medicine as the primary service...
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28319523/plasma-levels-of-microrna-155-are-upregulated-with-long-term-left-ventricular-assist-device-support
#18
Teresa Wang, Emily C OʼBrien, Joseph G Rogers, Daniel L Jacoby, Michael E Chen, Jeffrey M Testani, Dawn E Bowles, Carmelo A Milano, G Michael Felker, Chetan B Patel, Pramod N Bonde, Tariq Ahmad
Left ventricular assist device (LVAD) therapy unloads the failing heart but exposes the human body to unique pathophysiological demands such as continuous blood-flow and complete univentricular support, which are associated with increased risk of adverse clinical outcomes. MiRNAs are 22-23 nucleotide RNAs involved in regulation of multiple biological processes including the pathogenesis of heart failure (HF). Thus, measurement of miRNAs may have potential in both diagnostics as circulating biomarkers, and in therapeutics for targeted interventions...
March 17, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28302642/pregnancy-and-the-risk-of-spontaneous-coronary-artery-dissection-an-analysis-of-120-contemporary-cases
#19
Ofer Havakuk, Sorel Goland, Anil Mehra, Uri Elkayam
BACKGROUND: Because of the rarity of this condition, information on pregnancy-associated spontaneous coronary artery dissection is limited. We reviewed a large number of contemporary pregnancy-associated spontaneous coronary artery dissection cases in an attempt to define the clinical characteristics and provide management recommendations. METHODS AND RESULTS: A literature search for cases of pregnancy-associated spontaneous coronary artery dissection reported between 2000 and 2015 included 120 cases; 75% presented with ST-segment-elevation myocardial infarction, and 80% had anterior myocardial infarction...
March 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28299256/clinical-and-radiological-evaluation-of-implants-placed-with-osteotome-sinus-lift-technique-19-month-follow-up
#20
Bijan Movahedian Attar, Samaneh Alaei, Hamid Badrian, Amin Davoudi
AIMS: Implant placement in the posterior region of the maxilla might be problematic due to poor regional bone quality. The aim of this study was to clinically and radiologically evaluate implants which were placed in the posterior region of the maxilla (with insufficient bone height) with osteotome sinus lift technique after 19-month follow-up. MATERIALS AND METHODS: Twenty-four patients with posterior maxillary alveolar height ranging from 5 to 8 mm were chosen for this prospective study...
July 2016: Annals of Maxillofacial Surgery
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