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'Total knee replacement'

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https://www.readbyqxmd.com/read/29331994/acl-and-meniscal-injuries-increase-the-risk-of-primary-total-knee-replacement-for-osteoarthritis-a-matched-case-control-study-using-the-clinical-practice-research-datalink-cprd
#1
Tanvir Khan, Abtin Alvand, Daniel Prieto-Alhambra, David J Culliford, Andrew Judge, William F Jackson, Brigitte E Scammell, Nigel K Arden, Andrew James Price
OBJECTIVES: The aim of this study was to investigate whether ACL injury (ACLi) or meniscal injury increases the risk of end-stage osteoarthritis (OA) resulting in total knee replacement (TKR). METHODS: A matched case-control study of all TKRs performed in the UK between January 1990 and July 2011 and recorded in the Clinical Practice Research Datalink (CPRD) was undertaken. The CPRD contains longitudinal data on approximately 3.6 million patients. Two controls were selected for each case of TKR, matched on age, sex and general practitioner location as a proxy for socioeconomic status...
January 13, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29331302/bone-matrix-microdamage-and-vascular-changes-characterize-bone-marrow-lesions-in-the-subchondral-bone-of-knee-osteoarthritis
#2
Dzenita Muratovic, David M Findlay, Flavia M Cicuttini, Anita E Wluka, Yea-Rin Lee, Julia S Kuliwaba
INTRODUCTION: Bone marrow lesions (BMLs) in the subchondral bone in osteoarthritis (OA) are suggested to be multifactorial, although the pathogenic mechanisms are unknown. Bone metabolism and cardiovascular risk factors associate with BML in epidemiologic studies. However, there are no studies at the tissue level investigating the relationship between these processes and BML. The aim of this study was to investigate the relationship between BMLs in the tibial plateau (TP) of knee OA and bone matrix microdamage, osteocyte density and vascular changes...
January 10, 2018: Bone
https://www.readbyqxmd.com/read/29328791/how-noisy-are-total-knee-and-hip-replacements
#3
Jonathan P Simpson, Andrew J Hamer
Orthopaedic theatre can be noisy. Fifty percent of orthopaedic theatre staff have features of noise-induced hearing loss (NIHL). In this study, decibel (dB) levels were recorded in 17 total knee replacements (TKRs) and 11 total hip replacements (THRs). Noise levels reached 105.6dB(A) using a hammer and 97.9dB(A) with an oscillating saw. Exposure to levels above 90dB (which occurred in every case) even for short time periods is proven to cause irreversible loss of hearing. Tools used in orthopaedic theatre produce impulse noises that can cause NIHL...
December 2017: Journal of Perioperative Practice
https://www.readbyqxmd.com/read/29328749/thromboembolic-diseases-and-the-use-of-vena-cava-filters
#4
Samanthi De Silva
Mr GW is a 77-year-old gentleman who is hoping to have a total knee replacement of his left knee. He underwent a knee replacement on the right in 2011 under spinal anaesthetic, where his postoperative period was complicated by a saddle pulmonary embolus (PE).
April 2017: Journal of Perioperative Practice
https://www.readbyqxmd.com/read/29327379/influence-of-varying-stem-and-metaphyseal-sleeve-size-on-the-primary-stability-of-cementless-revision-tibial-trays-used-to-reconstruct-aori-iia-defects-a-simulation-study
#5
Maged Awadalla, Rami M A Al-Dirini, Dermot O'Rourke, Lucian Bogdan Solomon, Mark Heldreth, Mark Taylor
Traditionally, diaphyseal stems have been utilized to augment the stability of revision total knee replacement (rTKR) implants. More recently metaphyseal augments, such as sleeves, have been introduced to further augment component fixation. The effect of augments such as stems and sleeves have on the primary stability of a rTKR implant is poorly understood, however it has important implications on the complexity, costs and survivorship of the procedure. Finite element analysis was used to investigate the primary stability and strain distribution of various size stems and sleeves used in conjunction with a cementless revision tibial tray...
January 12, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29325717/factors-related-to-older-patients-fear-of-falling-during-the-first-mobilization-after-total-knee-replacement-and-total-hip-replacement
#6
Hale Turhan Damar, Ozlem Bilik, Ozgul Karayurt, Figen Erol Ursavas
The aim of this study was to determine fear of falling in the first mobilization and affecting factors in older patients. The study had a descriptive and cross-sectional design. Data were collected in Izmir, Turkey between February 2014 and March 2016. The sample included 204 older patients undergoing joint replacement surgery. Fifty-seven-point four percent and 42.6% of the patients had total hip and knee replacement respectively. 42.2% of the patients had a severe fear of falling when they were first mobilized...
January 8, 2018: Geriatric Nursing
https://www.readbyqxmd.com/read/29322905/pre-discharge-postoperative-radiographs-after-primary-total-knee-replacement-tradition-or-science
#7
S N Sambandam, V Khanna, G Rohinikumar, V Mounasamy
Consistent evidence exists on the inutility of immediate postoperative radiographs after a total knee replacement (TKR). We hypothesized that eliminating the pre-discharge film would not have any effect on the postoperative patient outcomes. Retrospective analysis of prospectively collected data was performed on 220 knees. Patients undergoing a simple primary TKR operated by 2 surgeons (Surgeon A and B) from January 2013 to July 2015 were divided into 2 groups (Groups 1 and 2 having 112 and 108 knees respectively)...
March 2017: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/29316600/impact-of-neuromuscular-electrical-stimulation-nmes-on-90-day-episode-costs-and-post-acute-care-utilization-in-total-knee-replacement-patients-with-disuse-atrophy
#8
Sarmistha Pal, Morad Chughtai, Assem A Sultan, Anton Khlopas, Nipun Sodhi, Nicole E George, Jennifer I Etcheson, Chukwuweike U Gwam, Jared M Newman, Linsen T Samuel, Anil Bhave, Joan E DaVanzo, Michael A Mont
INTRODUCTION: This study evaluated differences in: 1) total episode payments, 2) probability of hospital readmission, 3) probability of inpatient rehab facility (IRF) and utilization, and 4) probability of skilled nursing care facility (SNF) utilization in patients who had disuse atrophy and underwent a total knee arthroplasty (TKA) and either did, or did not, receive preoperative home-based neuromuscular electrical stimulation (NMES) therapy. MATERIALS AND METHODS: We used the Medicare limited dataset for a 5% sample of beneficiaries from 2014 and 2015 to construct episodes-of-care for TKA (DRG-470) patients with disuse atrophy who underwent a TKA during the 30 days prior to hospital admission and 90 days post-discharge...
December 22, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29303906/the-efficacy-of-pre-operative-preparation-with-intravenous-iron-and-or-erythropoietin-in-anaemic-patients-undergoing-orthopaedic-surgery-an-observational-study
#9
Martina Heschl, Hans Gombotz, Bettina Haslinger-Eisterer, Axel Hofmann, Nikolaus Böhler, Jens Meier
BACKGROUND: Pre-operative anaemia and transfusion are common among patients undergoing elective orthopaedic surgery. Application of 'patient blood management' might be the most effective way to reduce both anaemia and transfusion. Pre-operative administration of iron and/or erythropoietin (EPO) is one of the cornerstones of the first pillar of patient blood management, but in a daily clinical setting, efficacy and long-term safety of this measure have not been analysed thoroughly to date...
January 4, 2018: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29284869/postoperative-ultrasound-guided-continuous-femoral-nerve-blockade-for-unilateral-total-knee-arthroplasty-a-comparison-of-0-125-bupivacaine-and-0-2-ropivacaine
#10
Sruthi C Babu, Gokuldas Menon, Bindu K Vasu, Mathew George, Jai Thilak, Sundaram Iyer
Context: Total knee arthroplasty (TKA) is associated with severe postoperative pain which increases morbidity and mortality. Aims: The aim of the study was to compare the analgesic efficacy and motor blockade of continuous infusion of 0.125% bupivacaine and 0.2% ropivacaine in femoral nerve block following unilateral TKA and to assess the effectiveness of femoral nerve block. Settings and Design: One hundred and fifty patients undergoing unilateral total knee replacement surgery were included in this prospective observational comparative study...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29273645/stratification-of-knee-osteoarthritis-two-major-patient-subgroups-identified-by-genome-wide-expression-analysis-of-articular-cartilage
#11
Jamie Soul, Sara L Dunn, Sanjay Anand, Ferdinand Serracino-Inglott, Jean-Marc Schwartz, Ray P Boot-Handford, Tim E Hardingham
INTRODUCTION: Osteoarthritis (OA) is a heterogeneous and complex disease. We have used a network biology approach based on genome-wide analysis of gene expression in OA knee cartilage to seek evidence for pathogenic mechanisms that may distinguish different patient subgroups. METHODS: Results from RNA-Sequencing (RNA-Seq) were collected from intact knee cartilage at total knee replacement from 44 patients with OA, from 16 additional patients with OA and 10 control patients with non-OA...
December 22, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29258881/prevalence-and-changes-in-analgesic-medication-utilisation-1-year-prior-to-total-joint-replacement-in-an-older-cohort-of-patients
#12
M C S Inacio, K Cashman, N L Pratt, M H Gillam, G Caughey, S E Graves, E E Roughead
OBJECTIVES: To evaluate the prevalence and change in analgesic medications use prior to joint replacement in older patients between 2001 and 2012. METHODS: A population based epidemiological study was conducted. Opioids, non-steroidal anti-inflammatories (NSAIDs), paracetamol, corticosteroid injections, medications for neuropathic pain, hypnotics, and muscle relaxants supplied 1 year prior to total knee replacement (TKR, n = 15,517) and hip replacement (THR, n = 10,018) were assessed...
December 16, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29251167/influence-of-conformity-on-the-wear-of-total-knee-replacement-an-experimental-study
#13
Claire L Brockett, Silvia Carbone, John Fisher, Louise M Jennings
Wear of total knee replacement continues to be a significant factor influencing the clinical longevity of implants. Historically, failure due to delamination and fatigue directed design towards more conforming inserts to reduce contact stress. As new generations of more oxidatively stable polyethylene have been developed, more flexibility in bearing design has been introduced. The aim of this study was to investigate the effect of insert conformity on the wear performance of a fixed bearing total knee replacement through experimental simulation...
December 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/29248360/balancing-training-and-outcomes-in-total-knee-replacement-a-ten-year-review
#14
A Faulkner, M J Reidy, P S E Davies, W Wang, N Buddhadev, L Johnston, B Clift
INTRODUCTION: 10-year study examining differences in total knee arthroplasty (TKA) functional outcomes and survivorship in patients operated on by consultant and trainee orthopaedic surgeons. METHOD: Data was prospectively collected from all elective TKAs performed at our three linked institutions. Patient demographics, surgeon grade, and length of hospital stay were recorded. Outcomes pre-operatively and at 1, 3, 5, 7 and 10 years included mortality, need for revision surgery and function as documented by the patients' Knee Society Score...
December 13, 2017: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://www.readbyqxmd.com/read/29247814/clinical-application-of-different-operative-approach-of-total-knee-replacement-in-knee-valgus-patients-retrospective-cohort-study
#15
Chong-Jun Guo, Jun Liu, Dong-Sheng Niu, Jun Ma, Bo Kou, Hai-Jiao Zhang, Shao-Wei Xu, Xiao-Di Mu, Lv-Lin Yang, Hua Zhang
PURPOSE: According to the severity of knee valgus, different operative approaches were applied in total knee replacement. Hence, we assessed the safety and efficacy of different operative approaches in the level IV study. METHODS: From May 2011 to March 2014, a retrospectively analysis was conducted among 31 patients with knee valgus (mild in 10 cases, moderate in 8 cases and severe in 13 cases based on Keblish grade). Medial approach trip knee replacement was performed in mild and moderate patients, which were assigned as medial approach group...
December 13, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/29247357/tibial-internal-rotation-negatively-affects-clinical-outcomes-in-total-knee-arthroplasty-a-systematic-review
#16
REVIEW
Alfredo Schiavone Panni, Francesco Ascione, Marco Rossini, Adriano Braile, Katia Corona, Michele Vasso, Michael T Hirschmann
PURPOSE: The aim of this systematic review is to analyze the effect of tibial rotational alignment after total knee arthroplasty (TKA) on clinical outcomes and assess the eventual cut-off values for tibial TKA rotation leading to poor outcomes. METHODS: A detailed and systematic search from 1997 to 2017 of the Pubmed, Medline, Cochrane Reviews, and the Google Scholar databases was performed using the keyword terms "total knee arthroplasty", "total knee replacement", "tibial alignment", "tibial malalignement", "tibial rotation", "rotational error", "axis", "angle", "tibial malrotation", "clinical outcome", in several combinations...
December 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29241274/accuracy-of-coronal-plane-mechanical-alignment-in-a-customized-individually-made-total-knee-replacement-with-patient-specific-instrumentation
#17
Gary A Levengood, Jack Dupee
No abstract text is available yet for this article.
December 14, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29238824/effect-of-perioperative-gabapentin-on-postoperative-pain-resolution-and-opioid-cessation-in-a-mixed-surgical-cohort-a-randomized-clinical-trial
#18
Jennifer Hah, Sean C Mackey, Peter Schmidt, Rebecca McCue, Keith Humphreys, Jodie Trafton, Bradley Efron, Debra Clay, Yasamin Sharifzadeh, Gabriela Ruchelli, Stuart Goodman, James Huddleston, William J Maloney, Frederick M Dirbas, Joseph Shrager, John Costouros, Catherine Curtin, Ian Carroll
Importance: Guidelines recommend using gabapentin to decrease postoperative pain and opioid use, but significant variation exists in clinical practice. Objective: To determine the effect of perioperative gabapentin on remote postoperative time to pain resolution and opioid cessation. Design, Setting, and Participants: A randomized, double-blind, placebo-controlled trial of perioperative gabapentin was conducted at a single-center, tertiary referral teaching hospital...
December 13, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/29238512/an-approach-to-developing-customized-total-knee-replacement-implants
#19
Xinyu Li, Changjiang Wang, Yuan Guo, Weiyi Chen
Total knee replacement (TKR) has been performed for patients with end-stage knee joint arthritis to relieve pain and gain functions. Most knee replacement patients can gain satisfactory knee functions; however, the range of motion of the implanted knee is variable. There are many designs of TKR implants; it has been suggested by some researchers that customized implants could offer a better option for patients. Currently, the 3-dimensional knee model of a patient can be created from magnetic resonance imaging (MRI) or computed tomography (CT) data using image processing techniques...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29233526/no-increased-risk-of-carcinogenesis-with-mesh-based-hernia-repairs
#20
Bilal Chughtai, Art Sedrakyan, Dominique Thomas, Jialin Mao, Karyn S Eilber, J Quentin Clemens, Jennifer T Anger
BACKGROUND: The use of synthetic mesh has been placed under considerable scrutiny. We sought to evaluate whether there is a link between placement of synthetic polypropylene mesh for hernia repair and a subsequent cancer diagnosis. METHODS: Adult men undergoing mesh-based hernia repair from January 2008-December 2009 in New York State were identified and followed through December 2014. Control cohorts of men undergoing cholecystectomy and total knee replacement were control cohorts...
December 6, 2017: American Journal of Surgery
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