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Oxford knee replacement

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https://www.readbyqxmd.com/read/29643169/safety-and-feasibility-evaluation-of-tourniquets-for-total-knee-replacement-safe-tkr-study-protocol
#1
Peter Dh Wall, Imran Ahmed, Andrew Metcalfe, Andrew J Price, Kate Seers, Charles E Hutchinson, Helen Parsons, Jane Warwick, Bushra Rahman, Jaclyn Brown, Martin Underwood
INTRODUCTION: This study is designed to determine whether a full randomised controlled trial (RCT) examining the clinical effectiveness and safety of total knee replacement surgery with or without a tourniquet is warranted and feasible. METHOD AND ANALYSIS: Single centre, patient-blinded and assessor-blinded RCT. A computer-generated randomisation service will allocate 50 participants into one of two trial treatments, surgery with or without a tourniquet. The primary objective is to estimate recruitment, crossovers and follow-up of patients...
April 10, 2018: BMJ Open
https://www.readbyqxmd.com/read/29643154/associations-between-preoperative-oxford-hip-and-knee-scores-and-costs-and-quality-of-life-of-patients-undergoing-primary-total-joint-replacement-in-the-nhs-england-an-observational-study
#2
Peter Eibich, Helen A Dakin, Andrew James Price, David Beard, Nigel K Arden, Alastair M Gray
OBJECTIVES: To assess how costs and quality of life (measured by EuroQoL-5 Dimensions (EQ-5D)) before and after total hip replacement (THR) and total knee replacement (TKR) vary with age, gender and preoperative Oxford hip score (OHS) and Oxford knee score (OKS). DESIGN: Regression analyses using prospectively collected data from clinical trials, cohort studies and administrative data bases. SETTING: UK secondary care. PARTICIPANTS: Men and women undergoing primary THR or TKR...
April 10, 2018: BMJ Open
https://www.readbyqxmd.com/read/29628553/a-comparative-study-of-botulinum-toxin-a-with-triamcinolone-compared-to-triamcinolone-alone-in-the-treatment-of-osteoarthritis-of-knee
#3
Divya Shukla, Smitha K Sreedhar, Virendra Rastogi
Introduction: This study compares the efficacy in terms of pain relief and complications of intra-articular Botulinum toxin-A (BoNT-A) with intra-articular Triamcinolone versus Triamcinolone alone in the treatment of osteoarthritic knee pain of severe grade. If effective, BoNT-A may help in reducing the long term adverse effects due to prolonged analgesic consumption and reduce/delay requirement of knee replacement surgeries. Materials and Methods: In this prospective study, 30 patients of either sex, aged between 40 to 60 years with physical status ASA classes I or II suffering from knee joint osteoarthritis with knee pain and functional impairment were divided into 2 groups: The OA patients which received Botulinum toxin-A with Triamcinolone (Group A) & OA patients which received only Triamcinolone (Group B)...
January 2018: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29614710/patient-reported-outcome-measures-proms-in-patients-undergoing-patellofemoral-arthroplasty-and-total-knee-replacement-a-comparative-study
#4
Fabio Luigi Perrone, Steffen Baron, Eduardo M Suero, Christian Lausmann, Daniel Kendoff, Akos Zahar, Thorsten Gehrke, Mustafa Citak
BACKGROUND: Incongruity in the evaluation of outcomes between patients and surgeons has led to an increasing utilization of patient-reported outcome measures (PROMs) as an evaluation method of outcome. OBJECTIVE: The aim of this study was to compare Oxford Knee Score (OKS), KOOS-PS and Kujala Score results in patients who received either PFA or TKA with and without patella resurfacing in the tretament of knee osteoarthritis. METHODS: A total of 50 patients (PFA = 19 patients; TKA with patelloplasty = 15 patients; TKA with patellar resurfacing = 16 patients) undergone surgery between 2011 and 2014 and were included for final analysis...
March 23, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29556929/extra-articular-deformity-correction-using-taylor-spatial-frame-prior-to-total-knee-arthroplasty
#5
Gautam J K Tawari, Rajan Maheshwari, Sanjeev S Madan
A good long-term outcome following a total knee arthroplasty relies on restoration of the mechanical axis and effective soft tissue balancing of the prosthetic knee. Arthroplasty surgery in patients with secondary osteoarthritis of the knee with an extra-articular tibial deformity is a complex and challenging procedure. The correction of mal-alignment of the mechanical axis is associated with unpredictable result and with higher revision rates. Single-staged deformity correction and replacement surgery often result in the use of constraint implants...
March 20, 2018: Strategies in Trauma and Limb Reconstruction
https://www.readbyqxmd.com/read/29544516/a-comparison-of-clinical-and-patient-reported-outcomes-of-the-cemented-attune-and-pfc-sigma-fixed-bearing-cruciate-sacrificing-knee-systems-in-patients-who-underwent-total-knee-replacement-with-both-prostheses-in-opposite-knees
#6
Brian W Carey, James Harty
BACKGROUND: The ATTUNE Knee by DePuy Synthes was introduced in 2013. It is designed to provide better range of motion and address patient-reported instability. The PFC Sigma Knee, an earlier prosthesis by DePuy Synthes, is a common knee replacement with a strong clinical track record. Our aim is to compare the outcomes after primary total knee replacement for end-stage knee osteoarthritis of the PFC and ATTUNE knee systems in 21 patients who each have prosthesis in opposite knees using WOMAC, Oxford Knee and SF-12 scores and evaluation of range of motion...
March 15, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29524796/a-comparison-of-gait-one-year-post-operation-in-an-rct-of-robotic-uka-versus-traditional-oxford-uka
#7
Arman Motesharei, Philip Rowe, Mark Blyth, Bryn Jones, Angus Maclean
Robot-assisted unicompartmental knee surgery has been shown to improve the accuracy of implant alignment. However, little research has been conducted to ascertain if this results in a measureable improvement in knee function post operatively and a more normal gait. The kinematics of 70 OA knees were assessed using motion analysis in an RCT (31 receiving robotic-assisted surgery, and 39 receiving traditional manual surgery) and compared to healthy knees. Statistically significant kinematic differences were seen between the two surgical groups from foot-strike to mid-stance...
March 6, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29490403/femoral-component-sizing-in-oxford-unicompartmental-knee-replacement-existing-guidelines-do-not-work-for-indian-patients
#8
Rajesh Malhotra, Sahil Gaba, Naman Wahal, Vijay Kumar, Deep N Srivastava, Hemant Pandit
Oxford unicompartmental knee replacement (OUKR) has shown excellent long-term clinical outcomes as well as implant survival when used for correct indications with optimal surgical technique. Anteromedial osteoarthritis is highly prevalent in Indian patients, and OUKR is the ideal treatment option in such cases. Uncertainty prevails about the best method to determine femoral component size in OUKR. Preoperative templating has been shown to be inaccurate, while height- and gender-based guidelines based on European population might not apply to the Indian patients...
February 28, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29484536/agreement-between-retrospectively-and-contemporaneously-collected-patient-reported-outcome-measures-proms-in-hip-and-knee-replacement-patients
#9
Esther Kwong, Jenny Neuburger, Nick Black
PURPOSE: To investigate the relationship between retrospectively and contemporaneously collected patient-reported outcome measures (PROMs) and the influence on this relationship of patients' age and socio-economic status and the length of time. METHODS: Patients undergoing hip or knee replacement in four hospitals who had completed a pre-operative questionnaire were invited to recall their pre-operative health status shortly after surgery. The questionnaires included a disease-specific (Oxford Hip Score; Oxford Knee Score) and generic (EQ-5D-3L) PROM...
February 26, 2018: Quality of Life Research
https://www.readbyqxmd.com/read/29475782/mid-term-survivorship-and-clinical-outcomes-of-the-avon-patellofemoral-joint-replacement
#10
S W F Middleton, A D Toms, P J Schranz, V I Mandalia
BACKGROUND: We present the largest series of Avon patellofemoral joint (PFJ) replacements outside of the design centre. There is discussion over its efficacy and usefulness. We report an independent opinion of its indications, survivorship and outcomes. METHODS: We prospectively collected demographic data and patient reported outcome measures (PROM's) on our cohort of Avon Patellofemoral replacements since its adoption in our unit in 2003 until 2014. We performed a retrospective review of radiographs...
February 20, 2018: Knee
https://www.readbyqxmd.com/read/29471154/tibial-component-sizing-and-alignment-of-tkr-components-does-not-significantly-affect-patient-reported-outcome-measures-at-six-months-a-case-series-of-474-participants
#11
Imran Ahmed, Vlad Paraoan, Dveej Bhatt, Bhanu Mishra, Chetan Khatri, Damian Griffin, Andrew Metcalfe, Tim Barlow
OBJECTIVES: Total knee replacement (TKR) is an effective means of alleviating the symptoms of end stage osteoarthritis. However, 20% of patients report dissatisfaction one year post-operatively. Previous literature has demonstrated contradictory evidence regarding the relationship between alignment and tibial component sizing with patient reported outcome measures (PROMs). We aim to investigate the association between alignment of TKR components and effect of tibial component sizing on PROMs...
February 19, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29467465/development-and-validation-of-a-clinical-prediction-model-for-patient-reported-pain-and-function-after-primary-total-knee-replacement-surgery
#12
M T Sanchez-Santos, C Garriga, A Judge, R N Batra, A J Price, A D Liddle, M K Javaid, C Cooper, D W Murray, N K Arden
To develop and validate a clinical prediction model of patient-reported pain and function after undergoing total knee replacement (TKR). We used data of 1,649 patients from the Knee Arthroplasty Trial who received primary TKR across 34 centres in the UK. The external validation included 595 patients from Southampton University Hospital, and Nuffield Orthopaedic Centre (Oxford). The outcome was the Oxford Knee Score (OKS) 12-month after TKR. Pre-operative predictors including patient characteristics and clinical factors were considered...
February 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29464372/long-term-results-of-total-knee-arthroplasty-after-failed-high-tibial-osteotomy
#13
Xavier Paredes-Carnero, Manuel Leyes, Francisco Forriol, Ana Belén Fernández-Cortiñas, Jesús Escobar, Javier G Babé
PURPOSE: Sometimes, total knee replacement (TKR) is performed after a tibial osteotomy. It is not known if the osteotomy influences the clinical process of a TKR. The aim of this study was to look at the clinical outcome of a TKR after high tibial osteotomy (HTO) compared to a TKR with no HTO. METHODS: Between 1995 and 2005, 41 post-HTO TKRs (group A) with a minimum follow-up of ten years were selected. In parallel, it was selected a control group undergoing simple TKR, consisting of 41 patients (group B) matched with group A...
February 20, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29456776/what-percentage-of-patients-is-a-candidate-for-unicompartmental-knee-replacement-at-a-chinese-arthroplasty-center
#14
Yong He, Lianbo Xiao, Weitao Zhai, Maximilian F Kasparek, Guilin Ouyang, Friedrich Boettner
Background: Data on indication of Unicompartmental Knee Arthroplasty (UKA) in the Asian population are currently not available. The current paper evaluates patients undergoing knee replacement at a Chinese Orthopaedic Specialty Hospital to report the percentage of patients who meet radiographic and clinical indication criteria for UKA. Methods: Over a one-year period 463 consecutive patients (515 knees) underwent primary knee replacement surgery. Clinical data were recorded and preoperative radiographs were assessed...
2018: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29423757/comparing-the-validity-and-responsiveness-of-the-eq-5d-5l-to-the-oxford-hip-and-knee-scores-and-sf-12-in-osteoarthritis-patients-1-year-following-total-joint-replacement
#15
Barbara L Conner-Spady, Deborah A Marshall, Eric Bohm, Michael J Dunbar, Tom W Noseworthy
PURPOSE: (1) To assess responsiveness of the EQ-5D-5L compared to Oxford hip and knee scores and the SF-12 in osteoarthritis patients undergoing total hip (THR) or knee (TKR) replacement surgery; (2) to compare distribution and anchor-based methods of assessing responsiveness. METHODS: Questionnaires were mailed to consecutive patients following surgeon referral for primary THR or TKR and 1 year post-surgery. We assessed effect size (ES), standardized response mean (SRM), and standard error of measurement (SEM)...
February 8, 2018: Quality of Life Research
https://www.readbyqxmd.com/read/29396055/the-twin-peg-oxford-knee-medium-term-survivorship-and-surgical-principles
#16
Stephen H White, Sharon Roberts, Jan Herman Kuiper
BACKGROUND: A multicentre study of single peg Oxford knees reported failure associated with osteoarthritis progression, femoral component loosening, unexplained pain and meniscal bearing dislocation. Suboptimally positioned femoral components and intraoperative MCL damage could explain these problems. We hypothesised that modifying implantation technique to optimise femoral component positioning and MCL preservation, and introducing the twin peg Oxford knee would address these problems and improve longer term survival...
January 30, 2018: Knee
https://www.readbyqxmd.com/read/29366665/the-outcome-of-secondary-resurfacing-of-the-patella-following-total-knee-arthroplasty-results-from-the-trent-and-wales-arthroplasty-register
#17
Christopher Thomas, Vishal Patel, Emad Mallick, Colin Esler, Robert U Ashford
BACKGROUND: We sought to determine whether patients undergoing secondary patella resurfacing (SPR) benefited from the procedure by assessing postoperative satisfaction via a postal questionnaire. METHODS: All such patients included in the Trent and Wales Arthroplasty Register were invited to participate using patient-reported outcome measures (PROMs). We identified 223 patients who had undergone SPR over a 20-year period. Forty-two had died according to death register checks...
January 2018: Knee
https://www.readbyqxmd.com/read/29346081/reported-balance-confidence-and-movement-reinvestment-of-younger-knee-replacement-patients-are-more-like-younger-healthy-individuals-than-older-patients
#18
Brian D Street, Allan Adkin, William Gage
This study focused on differences between the rapidly growing younger (<65 years old) and older (>65 years old) total knee replacement (TKR) patients for measures of balance confidence, movement reinvestment, and functional mobility. Fifty-nine participants, including twenty-nine primary unilateral TKR patients (six months post-TKR) formed the four experimental groups: 1) Younger TKR Patient (YP), 2) Younger Control (YC), 3) Older TKR Patient (OP), and 4) Older Control (OC). The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), the Oxford Knee Score (OKS), Activities-specific Balance Confidence scale (ABC), the Movement-Specific Reinvestment Scale (MSRS), and the Timed Up and Go (TUG) test were measured...
March 2018: Gait & Posture
https://www.readbyqxmd.com/read/29343231/cementless-unicompartmental-knee-replacement-allows-early-return-to-normal-activity
#19
Benjamin Panzram, Ines Bertlich, Tobias Reiner, Tilman Walker, Sébastien Hagmann, Tobias Gotterbarm
BACKGROUND: Physical activity and regular participation in recreational sports gain importance in patients' lifestyle after knee arthroplasty. Cementless unicompartimental Knee replacement with the Oxford System has been introduced into clinical routine. Currently there is no data reporting on the physical activity, return to sports rate and quality of live after medial cementless Oxford Unicompartimental Knee Replacement (OUKR). METHODS: This retrospective cohort study reports on the functional outcome of the first 27 consecutive patients (30 knees) that were consecutively treated with a cementless medial OUKR between 2007 and 2009 in our hospital...
January 17, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29338761/is-total-femoral-replacement-for-non-oncologic-and-oncologic-indications-a-safe-procedure-in-limb-preservation-surgery-a-single-center-experience-of-22-cases
#20
Andreas Toepfer, Norbert Harrasser, Isabel Petzschner, Florian Pohlig, Ulrich Lenze, Ludger Gerdesmeyer, Ruediger von Eisenhart-Rothe, Heinrich Mühlhofer, Christian Suren
BACKGROUND: Several surgical options for the reconstruction of massive bone defects have been described and include biologic methods with autografts and allografts, and the use of tumor endoprostheses (total femoral replacement, TFR). Several types of modular TFR are available, but nevertheless unpredictable outcomes and high complication rates have been described from most authors. The present study aims to compare results after TFR performed with modular total femur prosthesis MML (Fa...
January 16, 2018: European Journal of Medical Research
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