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https://www.readbyqxmd.com/read/27909124/predicting-dissatisfaction-following-total-knee-arthroplasty-in-patients-under-55-years-of-age
#1
C E H Scott, W M Oliver, D MacDonald, F A Wade, M Moran, S J Breusch
AIMS: Risk of revision following total knee arthroplasty (TKA) is higher in patients under 55 years, but little data are reported regarding non-revision outcomes. This study aims to identify predictors of dissatisfaction in these patients. PATIENTS AND METHODS: We prospectively assessed 177 TKAs (157 consecutive patients, 99 women, mean age 50 years; 17 to 54) from 2008 to 2013. Age, gender, implant, indication, body mass index (BMI), social deprivation, range of movement, Kellgren-Lawrence (KL) grade of osteoarthritis (OA) and prior knee surgery were recorded...
December 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27907935/a-meta-analysis-of-functional-outcomes-in-patient-specific-instrumented-knee-arthroplasty
#2
Ashim Mannan, Deji Akinyooye, Fahad Hossain
Alignment data in patient-specific instrumented (PSI) knee arthroplasty have been examined in several meta-analyses, with demonstration of comparative but not improved restitution of a neutral mechanical axis and favorable outcomes in femoral implant axial alignment. To date, no comprehensive synthesis of data has been conducted specifically for functional outcomes. Relevant databases were searched according to Preferred Reporting Items for Systematic reviews and Meta-analyses guidelines during the period 2000 to 2015 of Levels 1 and 2 studies comparing functional outcomes of patient-specific instrumentation (PSI) versus conventional instrumentation...
December 1, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27898989/identifying-an-ideal-time-frame-for-staged-bilateral-total-knee-arthroplasty-to-maximize-functional-outcome
#3
Jared Ze Yang Yeh, Jerry Yongqiang Chen, Wu Chean Lee, Hwei Chi Chong, Hee Nee Pang, Darren Keng Jin Tay, Shi-Lu Chia, Ngai Nung Lo, Seng Jin Yeo
Compared with staged bilateral total knee arthroplasty (TKA), simultaneous bilateral TKA carries a higher risk of cardiac complications, pulmonary complications, and mortality, especially in patients with preexisting cardiopulmonary disease or advanced age. However, the period of time between staged TKAs that would eliminate these increased risks has yet to be determined. The purpose of this study is to evaluate complication rates and functional outcome in patients who underwent staged bilateral TKA and to determine an optimal time frame for the second knee...
November 29, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27894176/complications-and-short-term-outcomes-of-medial-opening-wedge-high-tibial-osteotomy-using-a-locking-plate-for-medial-osteoarthritis-of-the-knee
#4
Seung-Suk Seo, Ok-Gul Kim, Jin-Hyeok Seo, Do-Hoon Kim, Youn-Gu Kim, In-Seung Lee
Purpose: The purpose of this study was to investigate complications and radiologic and clinical outcomes of medial opening wedge high tibial osteotomy (MOWHTO) using a locking plate. Materials and Methods: This study reviewed 167 patients who were treated with MOWHTO using a locking plate from May 2012 to June 2014. Patients without complications were classified into group 1 and those with complications into group 2. Medical records, operative notes, and radiographs were retrospectively reviewed to identify complications...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27855775/use-of-closed-suction-drain-after-primary-total-knee-arthroplasty-an-overrated-practice
#5
Gaurav M Sharma, Gauresh Palekar, Dilip D Tanna
PURPOSE: The age-old practice of closed suction drain following orthopedic procedures has been challenged since past few decades. Our aim was to assess the effectiveness of closed suction drain after total knee arthroplasty. MATERIALS AND METHODS: One hundred twenty patients (135 knees) with primary Total Knee Arthroplasty were divided into a study group (no drain) and a control group (drain used). Inclusion criteria were grade 3 and grade 4 osteoarthritis of the knee...
2016: SICOT-J
https://www.readbyqxmd.com/read/27761742/cementless-metaphyseal-sleeves-without-stem-in-revision-total-knee-arthroplasty
#6
David Gøttsche, Thomas Lind, Thorbjørn Christiansen, Henrik M Schrøder
INTRODUCTION: Revision total knee arthroplasty with a cementless metaphyseal sleeve is suggested to be used without stem in revision total knee arthroplasty (rTKA). To the best of our knowledge, no papers investigating this have been published. The purpose of this study was to evaluate clinical outcome. METHOD: In this retrospective study, 71 patients operated with rTKA with sleeves without stem in the period 2009-2011 were identified; 63 were examined. All patients with the prosthesis still in place were invited to a medical examination including X-rays...
October 19, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27755599/a-systematic-review-of-the-effects-of-single-event-multilevel-surgery-on-gait-parameters-in-children-with-spastic-cerebral-palsy
#7
Robert P Lamberts, Marlette Burger, Jacques du Toit, Nelleke G Langerak
BACKGROUND: Three-dimensional gait analysis (3DGA) is commonly used to assess the effect of orthopedic single-event multilevel surgery (SEMLS) in children with spastic cerebral palsy (CP). PURPOSE: The purpose of this systematic review is to provide an overview of different orthopedic SEMLS interventions and their effects on 3DGA parameters in children with spastic CP. METHODS: A comprehensive literature search within six databases revealed 648 records, from which 89 articles were selected for the full-text review and 24 articles (50 studies) included for systematic review...
2016: PloS One
https://www.readbyqxmd.com/read/27748254/retrospective-comparison-of-functional-and-radiological-outcome-between-two-contemporary-high-flexion-knee-designs
#8
Vikash Kapoor, Daipayan Chatterjee, Sutanu Hazra, Anirban Chatterjee, Parag Garg, Kaustav Debnath, Soham Mandal, Sudipto Sarkar
INTRODUCTION: Patient satisfaction after total knee replacement (TKR) depends on the amount of pain relief and the functional activities achieved. An important criterion of good functional outcome is the amount of flexion achieved and whether the patient can manage high flexion activities. In order to increase the amount of safe flexion, various implant designs have been developed. This study aims to compare the outcome after TKR using two contemporary high flexion knee designs: Sigma CR150 High Flex Knee prosthesis (Depuy, Warsaw, Indiana) and NexGen High Flex Knee prosthesis (Zimmer, Warsaw, Indiana)...
2016: SICOT-J
https://www.readbyqxmd.com/read/27737685/community-based-rehabilitation-after-knee-arthroplasty-corka-study-protocol-for-a-randomised-controlled-trial
#9
Karen L Barker, David Beard, Andrew Price, Francine Toye, Martin Underwood, Avril Drummond, Gary Collins, Susan Dutton, Helen Campbell, Nicola Kenealy, Jon Room, Sarah E Lamb
BACKGROUND: The number of knee arthroplasties performed each year is steadily increasing. Although the outcome is generally favourable, up to 15 % fail to achieve a satisfactory clinical outcome which may indicate that the existing model of rehabilitation after surgery may not be the most efficacious. Given the increasing number of knee arthroplasties, the relative limited physiotherapy resources available and the increasing age and frailty of patients receiving arthroplasty surgery, it is important that we concentrate our rehabilitation resources on those patients who most need help to achieve a good outcome...
October 13, 2016: Trials
https://www.readbyqxmd.com/read/27694515/ten-to-15-year-results-of-the-oxford-phase%C3%A2-iii-mobile-unicompartmental-knee-arthroplasty-a-prospective-study-from-a-non-designer-group
#10
L A Lisowski, L I Meijer, M P J van den Bekerom, P Pilot, A E Lisowski
AIMS: The interest in unicompartmental knee arthroplasty (UKA) for medial osteoarthritis has increased rapidly but the long-term follow-up of the Oxford UKAs has yet to be analysed in non-designer centres. We have examined our ten- to 15-year clinical and radiological follow-up data for the Oxford Phase III UKAs. PATIENTS AND METHODS: Between January 1999 and January 2005 a total of 138 consecutive Oxford Phase III arthroplasties were performed by a single surgeon in 129 patients for medial compartment osteoarthritis (71 right and 67 left knees, mean age 72...
October 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27694514/the-results-of-oxford-unicompartmental-knee-arthroplasty-in-the-united-states-a-mean-ten-year-survival-analysis
#11
R H Emerson, O Alnachoukati, J Barrington, K Ennin
AIMS: Approved by the Food and Drug Administration in 2004, the Phase III Oxford Medial Partial Knee is used to treat anteromedial osteoarthritis (AMOA) in patients with an intact anterior cruciate ligament. This unicompartmental knee arthroplasty (UKA) is relatively new in the United States, and therefore long-term American results are lacking. PATIENTS AND METHODS: This is a single surgeon, retrospective study based on prospectively collected data, analysing a consecutive series of primary UKAs using the Phase III mobile-bearing Oxford Knee and Phase III instrumentation...
October 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27694513/early-outcomes-of-twin-peg-mobile-bearing-unicompartmental-knee-arthroplasty-compared-with-primary-total-knee-arthroplasty
#12
Z C Lum, A V Lombardi, J M Hurst, M J Morris, J B Adams, K R Berend
AIMS: Since redesign of the Oxford phase III mobile-bearing unicompartmental knee arthroplasty (UKA) femoral component to a twin-peg design, there has not been a direct comparison to total knee arthroplasty (TKA). Thus, we explored differences between the two cohorts. PATIENTS AND METHODS: A total of 168 patients (201 knees) underwent medial UKA with the Oxford Partial Knee Twin-Peg. These patients were compared with a randomly selected group of 177 patients (189 knees) with primary Vanguard TKA...
October 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27694511/gait-comparison-of-unicompartmental-and-total-knee-arthroplasties-with-healthy-controls
#13
G G Jones, M Kotti, A V Wiik, R Collins, M J Brevadt, R K Strachan, J P Cobb
AIMS: To compare the gait of unicompartmental knee arthroplasty (UKA) and total knee arthroplasty (TKA) patients with healthy controls, using a machine-learning approach. PATIENTS AND METHODS: 145 participants (121 healthy controls, 12 patients with cruciate-retaining TKA, and 12 with mobile-bearing medial UKA) were recruited. The TKA and UKA patients were a minimum of 12 months post-operative, and matched for pattern and severity of arthrosis, age, and body mass index...
October 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27694510/does-location-of-patellofemoral-chondral-lesion-influence-outcome-after-oxford-medial-compartmental-knee-arthroplasty
#14
S Konan, F S Haddad
AIMS: Medial unicompartmental knee arthroplasty (UKA) is associated with successful outcomes in carefully selected patient cohorts. We hypothesised that severity and location of patellofemoral cartilage lesions significantly influences functional outcome after Oxford medial compartmental knee arthroplasty. PATIENTS AND METHODS: We reviewed 100 consecutive UKAs at minimum eight-year follow-up (96 to 132). A single surgeon performed all procedures. Patients were selected based on clinical and plain radiographic assessment...
October 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27692784/tibial-tubercle-osteotomy-in-revision-knee-arthroplasty
#15
Shahid A Punwar, Daniel P Fick, Riaz J K Khan
BACKGROUND: Obtaining adequate exposure while maintaining the integrity of the extensor mechanism is crucial to the success of revision knee arthroplasty. This is particularly important in infected cases where staged procedures are necessary. While the use of a long, tibial tubercle osteotomy (TTO) is an established method to improve exposure, controversy still exists concerning complication rates and sequential use. METHODS: Forty-two TTOs were performed in revision knee arthroplasties between 2009 and 2015...
September 3, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27677984/mid-term-results-of-oxford-phase-3-medial-unicompartmental-knee-arthroplasty-for-medial-arthritis-in-chinese-patients
#16
Taotao Xu, Yangjun Lao, Jitao Wang, Fucun Liu, Luwei Xiao, Peijian Tong
BACKGROUND: The purpose of this study was to evaluate the mid-term results of an Oxford phase-3 unicompartmental knee arthroplasty (UKA) for medial arthritis in Chinese patients. METHODS: The study included 64 patients who underwent a minimally invasive Oxford phase-3 UKA for medial knee arthritis. The patients were clinically evaluated preoperatively and at the final follow-up according to the clinical and functional components of the Knee Society Score (KSS), the Hospital for Special Surgery knee score and range of motion...
September 27, 2016: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/27668223/history-of-previous-knee-surgery-does-not-affect-the-clinical-outcomes-of-primary-total-knee-arthroplasty-in-an-asian-population
#17
Jason Beng Teck Lim, Bryan Loh, Hwei Chi Chong, Andrew Hwee Chye Tan
BACKGROUND: Patients with a history of previous knee surgeries, such as anterior cruciate ligament reconstruction (ACLR) and high tibial osteotomy (HTO), often have a higher likelihood of requiring a subsequent total knee arthroplasty (TKA). However, there is relatively limited data, especially in the Asian population, on how previous knee surgery could affect the clinical outcomes of TKA. Therefore, this study aims to evaluate the impact of previous knee surgeries on the clinical outcomes of future TKA...
August 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/27659761/performance-of-eq-5d-howru-and-oxford-hip-knee-scores-in-assessing-the-outcome-of-hip-and-knee-replacements
#18
Tim Benson, Dan H Williams, Henry W W Potts
BACKGROUND: We aimed to compare the performance of EQ-5D-3 L and howRu, which are short generic patient-reported outcome measures (PROMs), in assessing the outcome of hip and knee replacements, using the Oxford Hip Score (OHS) and the Oxford Knee Scores (OKS) for comparison. METHODS: Outcome was assessed as the difference between pre-surgery and 6-month post-surgery scores. We used a large sample from the NHS PROMs database, which used EQ-5D-3 L, and a small cohort of patients having the same operations collected by MyClinicalOutcomes (MCO), which used howRu...
2016: BMC Health Services Research
https://www.readbyqxmd.com/read/27659044/no-difference-in-range-of-motion-between-ultracongruent-and-posterior-stabilized-design-in-total-knee-arthroplasty-a-randomized-controlled-trial
#19
Jörg Lützner, Franziska Beyer, Julian Dexel, Hagen Fritzsche, Cornelia Lützner, Stephan Kirschner
PURPOSE: The use of an ultracongruent (UC) insert with a standard femoral component for substitution of the posterior cruciate ligament (PCL) is a bone-preserving and therefore interesting alternative to the established box and cam mechanism of posterior stabilized (PS) total knee arthroplasty (TKA). This study investigated range of motion (ROM), stability and patient-reported outcome (PRO) in UC and PS TKA. We hypothesized better knee flexion with the PS design but no difference in stability and PRO between UC and PS TKA...
September 22, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27631646/lateral-osteophytes-do-not-represent-a-contraindication-to-medial-unicompartmental-knee-arthroplasty-a-15-year-follow-up
#20
Thomas W Hamilton, Rajan Choudhary, Cathy Jenkins, Stephen J Mellon, Christopher A F Dodd, David W Murray, Hemant G Pandit
PURPOSE: Lateral osteophytes have been reported to be associated with lateral compartment disease and as such it is unclear whether medial unicompartmental knee arthroplasty should be performed if these are present. METHODS: Using the OARSI classification system, 0 (no osteophyte) to 3 (large osteophyte), radiographs from a series of cemented meniscal-bearing unicompartmental knee arthroplasty implanted in the setting of full-thickness lateral cartilage where lateral osteophytes were not considered a contraindication were identified and factors associated with the presence and size of lateral osteophytes, and their impact on clinical outcomes and implant survival were assessed...
September 8, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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