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Prosthesis infection

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https://www.readbyqxmd.com/read/28541895/noncontact-electrical-permittivity-mapping-and-ph-sensitive-films-for-osseointegrated-prosthesis-and-infection-monitoring
#1
Sumit Gupta, Kenneth J Loh
The objective of this study is to develop a noncontact, noninvasive system for detecting and monitoring subcutaneous infection occurring at the tissue and osseointegrated prosthesis interface. It is known that the local pH of tissue can change due to infection. Therefore, the sensing system integrates two parts, namely, pH-sensitive thin films that can be coated onto prosthesis surfaces prior to them being implanted and an electrical capacitance tomography (ECT) algorithm that can reconstruct the spatial permittivity distribution of a region of space in a noncontact fashion...
May 23, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28541598/pediatric-melody-mitral-valve-replacement-in-acute-endocarditis-alternative-surgical-hybrid-technique
#2
Ireneusz Haponiuk, Maciej Chojnicki, Radosław Jaworski, Mariusz Steffens, Konrad Paczkowski, Aneta Szofer-Sendrowska, Marta Paśko-Majewska, Katarzyna Gierat-Haponiuk, Anna Romanowicz, Wiktor Szymanowicz
BACKGROUND AND AIM: Acute endocarditis (AE) is still rare disease in pediatric population, nevertheless the children suffering from AE usually need heart valves repair or replacement in emergency settings. METHODS: We present a case of emergency mitral valve replacement with the use of Melody balloon expandable stented bioprosthesis in a 2-years-old patient with acute endocarditis, subsequent mitral (bicuspid) valve incompetence after aggressive infective destruction with the symptoms of critical multiorgan failure...
May 25, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28540566/-osteosynthesis-associated-infections-epidemiology-definition-and-diagnosis
#3
REVIEW
N Renz, S Feihl, C E Dlaska, M A Schütz, A Trampuz
Osteosynthesis-associated infections occur in 1-5% after closed and in up to 30% after open fractures. There are three different descriptions of implant-associated infections after fracture fixation, which are crucial for the selection of the adequate treatment strategy; temporal appearance from the index surgery (early versus late), pathogenesis of the infection (exogenous, hematogenous and contiguous from an adjacent focus), duration of infection symptoms (acute versus chronic). Diagnosis of osteosynthesis-associated infection is challenging, as chronic low-grade infections often present only with unspecific and subtle clinical symptoms...
May 24, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28540149/treatment-challenges-of-prosthetic-hip-infection-with-associated-iliacus-muscle-abscess-report-of-5-cases-and-literature-review
#4
Joshua M Lawrenz, Nathan W Mesko, Carlos A Higuera, Robert M Molloy, Claus Simpfendorfer, Maja Babic
Prosthetic joint infection is an unfortunate though well-recognized complication of total joint arthroplasty. An iliacus and/or iliopsoas muscle abscess is a rarely documented presentation of hip prosthetic joint infection. It is thought an unrecognized retroperitoneal nidus of infection can be a source of continual seeding of the prosthetic hip joint, prolonging attempts to eradicate infection despite aggressive debridement and explant attempts. The current study presents five cases demonstrating this clinical scenario, and discusses various treatment challenges...
2017: J Bone Jt Infect
https://www.readbyqxmd.com/read/28540148/clinical-and-microbiological-characteristics-of-bacteroides-prosthetic-joint-infections
#5
Neel Shah, Douglas Osmon, Aaron J Tande, James Steckelberg, Rafael Sierra, Randall Walker, Elie F Berbari
Clinical and microbiological characteristics of patients with Bacteroides prosthetic joint infection (PJI) have not been well described in the literature. The aim of this retrospective cohort study was to assess the outcome of patients with Bacteroides PJI and to review risk factors associated with failure of therapy. Between 1/1969 and 12/2012, 20 episodes of Bacteroides PJI in 17 patients were identified at our institution. The mean age of the patients in this cohort at the time of diagnosis was 55.6 years; 59% (n=10) had knee involvement...
2017: J Bone Jt Infect
https://www.readbyqxmd.com/read/28540146/-combined-diagnostic-tool-application-to-a-retrospective-series-of-patients-undergoing-total-joint-revision-surgery
#6
Enrico Gallazzi, Lorenzo Drago, Andrea Baldini, Ian Stockley, David A George, Sara Scarponi, Carlo L Romanò
Background: Differentiating between septic and aseptic joint prosthesis may be challenging, since no single test is able to confirm or rule out infection. The choice and interpretation of the panel of tests performed in any case often relies on empirical evaluation and poorly validated scores. The "Combined Diagnostic Tool (CDT)" App, a smartphone application for iOS, was developed to allow to automatically calculate the probability of having a of periprosthetic joint infection, on the basis of the relative sensitivity and specificity of the positive and negative diagnostic tests performed in any given patient...
2017: J Bone Jt Infect
https://www.readbyqxmd.com/read/28537700/inflatable-penile-prosthesis-as-tissue-expander-what-is-the-evidence
#7
Paul H Chung, Jordan A Siegel, Timothy J Tausch, Alexandra K Klein, Jeremy M Scott, Allen F Morey
OBJECTIVE: Many patients who undergo inflatable penile prosthesis (IPP) replacement are often upsized to larger cylinders, suggesting the IPP may serve as a tissue expander and increase internal penile length. The objective of this study is to evaluate whether cylinder length increases with subsequent IPP insertion. MATERIALS AND METHODS: We queried American Medical Systems and Coloplast Patient Information Form databases to identify patients who underwent IPP placement and replacement between 2004-2013...
May 23, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28534175/-aseptic-loosening-of-total-ankle-replacement-two-stage-revision-with-bone-augmentation-of-osseous-defects-and-secondary-prosthesis-implantation
#8
A Barg, M Wiewiorski, V Valderrabano
OBJECTIVE: To remove loosened ankle prosthesis components, perform osseous defect augmentation, and reimplant definitive prosthesis components to preserve ankle range of motion. INDICATIONS: Aseptic loosening of the tibial and/or talar ankle prosthesis components with substantial bone defect. CONTRAINDICATIONS: General surgical/anesthesiological risks, infections, critical soft tissue conditions, nonmanageable hindfoot instability, neurovascular impairment of the lower extremity, neuroarthropathy, substantial nonreconstructable osseous defects with or without cysts on the tibial and/or talar side, noncompliance, primary total ankle replacement (TAR) using intramedullary fixation (stem fixation), severely reduced bone quality, insulin-dependent diabetes mellitus, smoking, unrealistic patients' expectations, high activity in sports...
May 22, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28530256/can-the-onset-of-orbital-cancer-be-the-result-of-a-prosthetic-eye
#9
A Croce, V Mastronardi, M Laus, E Festa Kotelnikova
Orbital exenteration is a disfiguring procedure performed for unresponsive orbital infections and control of recurrent benign tumours and malignancies arising from the eyelids (basal cell carcinoma, squamous cell carcinoma, conjunctival malignant melanoma), lachrymal glands (adenoid cystic carcinoma) or surrounding sinuses. In extremely rare cases the use of a prosthetic eye after enucleation can lead to anophthalmic socket tumours. We report the case of a 54-year-old man who had left eye enucleation due to recurring events of retinal detachment and who developed an invasive fast growing epidermoid carcinoma 30 years later...
May 22, 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28529867/efficacy-of-antibiotic-suppressive-therapy-in-patients-with-a-prosthetic-joint-infection
#10
Marjan Wouthuyzen-Bakker, Jasperina M Nijman, Greetje A Kampinga, Sander van Assen, Paul C Jutte
Introduction: For chronic prosthetic joint infections (PJI), complete removal of the infected prosthesis is necessary in order to cure the infection. Unfortunately, a subgroup of patients is not able to undergo a revision surgery due to high surgical risk. Alternatively, these patients can be treated with antibiotic suppressive therapy (AST) to suppress the infection. Aim: To evaluate the efficacy and tolerability of AST. Methods: We retrospectively collected data (period 2009-2015) from patients with a PJI (of hip, knee or shoulder) who were treated with AST at the University Medical Center Groningen, the Netherlands...
2017: J Bone Jt Infect
https://www.readbyqxmd.com/read/28529089/kinetics-of-biofilm-formation-by-staphylococcus-lugdunensis-strains-in-bone-and-joint-infections
#11
Xavier Argemi, Gilles Prévost, Philippe Riegel, Christian Provot, Stéphanie Badel-Berchoux, François Jehl, Elodie Olivares, Yves Hansmann
OBJECTIVE: To describe the clinical presentation and 1-year follow-up of patients with bone and joint infections (BJIs) caused by Staphylococcus lugdunensis and evaluate its biofilm-forming capacities. PATIENTS AND METHODS: Overall, 28 patients with BJIs from VISLISI clinical trials were included. We evaluated 1-year clinical follow-up and analyzed biofilm production kinetics of the 28 strains using the BioFilm Ring Test®. RESULTS: Of all patients, 12 had osteoarticular infections without material and 16 had prosthetic joint infections, of which 9 underwent a 1-stage revision procedure...
May 12, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28526569/total-joint-replacement-for-neglected-posterior-knee-dislocation-following-septic-arthritis-after-arthroscopy
#12
Yusuf Öztürkmen, Yunus Emre Akman, Ethem Ayhan Ünkar, Erhan Şükür
This report presents the first case of a knee dislocation following septic arthritis after arthroscopy. A 65-year-old woman had an arthroscopy with irrigation and debridement (I&D) of the joint and microfracture for the chondral lesions. She had complaints of postarthroscopic infection but non-steroidal anti-inflammatory medication and local ice compression was recommended. She revisited her physician twice and at the last visit she had a large purulent effusion in her knee. The gram stain of the joint fluid aspirate demonstrated gram-positive cocci and the cultures grew methicilline-sensitive Staphylococcus aureus...
May 16, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28526202/capnocytophaga-canimorsus-an-underestimated-cause-of-periprosthetic-joint-infection
#13
Marcel Orth, Patrick Orth, Konstantinos Anagnostakos
BACKGROUND: Periprosthetic joint infection (PJI) is a major clinical problem in orthopedic surgery. Capnocytophaga canimorsus (C. canimorsus) is an unusual and hardly detectable bacterium. A review of the literature indicates that C. canimorsus affects mainly immunocompromised patients. It has not been reported to cause periprosthetic joint infections in immunocompetent patients so far. This case report aims to raise awareness of C. canimorsus in orthopedic surgery with special regard to joint arthroplasty...
May 16, 2017: Knee
https://www.readbyqxmd.com/read/28526023/high-incidence-of-periprosthetic-joint-infection-with-propionibacterium-acnes-after-the-use-of-a-stemless-shoulder-prosthesis-with-metaphyseal-screw-fixation-a-retrospective-cohort-study-of-241-patients-propionibacter-infections-after-eclipse-tsa
#14
Lisa Johansson, Nils P Hailer, Hans Rahme
BACKGROUND: A stemless shoulder prosthesis with humeral metaphyseal screw fixation was introduced in order to save bone-stock and to facilitate reconstruction of biomechanics (Eclipse®). The aim of this study was to analyze whether the risk of infection is different with this implant compared to conventional shoulder prosthesis. METHODS: Two hundred and forty-one patients (54.8% females) were operated with a shoulder arthroplasty and followed for median 2.0 (0...
May 19, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28524620/clinical-performance-and-survivorship-of-navigated-floating-platform-mobile-bearing-total-knee-arthroplasty-a-minimum-10-year-follow-up
#15
Sang-Min Kim, Jai-Gon Seo, Seung-Jae Lim, Hyung-Tae Lim, Chang-Ho Cho, Young-Wan Moon
BACKGROUND: The purpose of this study is to report the outcome of navigation-assisted cruciate-retaining total knee arthroplasty (TKA) using one type of cemented, second-generation, floating-platform (FP), mobile-bearing system. METHODS: Forty-two patients who underwent cruciate retaining TKAs using e.motion-FP prostheses under navigational guidance were retrospectively reviewed. The preoperative diagnosis was osteoarthritis in all knees except one rheumatoid arthritis...
May 19, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28522724/draft-genome-sequence-of-staphylococcus-epidermidis-clinical-strain-goi1153754-03-14-isolated-from-an-infected-knee-prosthesis
#16
Marta Bottagisio, Alessio Soggiu, Arianna B Lovati, Marco Toscano, Cristian Piras, Carlo L Romanò, Luigi Bonizzi, Paola Roncada, Lorenzo Drago
We announce the draft genome sequence of Staphylococcus epidermidis clinical strain GOI1153754-03-14, isolated from an infected orthopedic prosthesis. The reported genomic sequence will provide valuable information concerning the mechanisms of the biofilm formation on metallic implants.
May 18, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28508765/a-comparison-of-outcomes-of-treatment-with-resection-prosthesis-of-the-hip-in-revision-and-oncological-surgery
#17
Paweł Kamiński, Jakub Szmyd, Jarosław Ambroży, Jerzy Mirosław Jaworski, Bogusław Frańczuk
INTRODUCTION: The introduction of resection prostheses paved the way for the development of limb-sparing surgery in patients with primary or metastatic bone tumours. After some time, the developing possibilities of treatment of extensive bone defects allowed for the use of resection prostheses as an emergency procedure in patients undergoing revision surgery due to hip implant loosening. The aim of this paper is to compare treatment outcomes in patients receiving the Modular Universal Tumour and Revision System (MUTARS) resection prosthesis during arthroplasty performed for different indications: treatment of a tumour metastasis and revision surgery in cases of implant loosening...
April 12, 2017: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28506674/removal-of-an-infected-hip-arthroplasty-is-a-high-risk-surgery-putting-morbidity-into-context-with-other-major-nonorthopedic-operations
#18
James A Browne, Jourdan M Cancienne, Wendy M Novicoff, Brian C Werner
BACKGROUND: Two-stage revision remains the most common approach to periprosthetic joint infection of total hip arthroplasty (THA) in the United States. The postoperative risks associated with removal of an infected prosthesis and placement of a spacer have not been thoroughly studied. METHODS: Patients who underwent THA implant removal and spacer placement for infection were identified in a large administrative database. Morbidity and mortality rates were assessed for the 90-day postoperative period and readmission rates were assessed at 30 days postoperatively...
April 6, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28502887/open-surgical-treatment-of-secondary-aorto-esophageal-and-aortobronchial-fistula-after-thoracic-endovascular-aortic-repair-and-esophagocoloplasty-in-a-second-procedure
#19
Milos Sladojevic, Milos Bjelovic, Nikola Ilic, Perica Mutavdzic, Igor Koncar, Marko Dragas, Lazar Davidovic
INTRODUCTION: Aorto-esophageal (AEF) and aortobronchial fistula (ABF) after TEVAR are rare complications with catastrophic consequences without treatment. In this case report we presented a patient with AEF and ABF after TEVAR successfully treated with endograft explantation and replaced by Dacron graft followed by esophagectomy and left principal bronchus repairing. CASE REPORT: We report a patient with AEF and ABF after TEVAR who was evaluated due to dysphagia and chest pain followed by hematemesis and hemoptysis...
May 11, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28498907/complicated-infective-aortic-endocarditis-comparison-of-different-surgical-strategies%C3%A2
#20
Miriam Silaschi, Niki Nicou, Ranjit Deshpande, Sanjay Chaubey, Max Baghai, Rafal Dworakowski, Olaf Wendler
OBJECTIVES: The choice of substitute during aortic valve replacement for infective endocarditis (IE) is still widely debated. We retrospectively reviewed all patients operated for aortic IE and compared groups according to the complexity of IE and substitutes implanted. METHODS: From 2000 to 2015, 187 patients were treated using stentless bioprostheses (SBP) as root replacement ( n  = 30), mechanical prostheses (MP, n  = 45) or stented bioprostheses (SP, n  = 112) (mean follow-up 4...
May 11, 2017: Interactive Cardiovascular and Thoracic Surgery
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