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TKA outcomes

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https://www.readbyqxmd.com/read/29045970/-unilateral-patellar-resurfacing-in-bilateral-total-knee-arthroplasty-a-randomized-controlled-study
#1
J F Wang, Z Li, K S Zhang, F Yuan, R J Li, Q J Zhong, Z P Guan
OBJECTIVE: To perform unilateral patellar resurfacing and contralateral patellar retention in bilateral total knee arthroplasty (TKA) randomly, and to compare the clinical effects of patellar retention with patellar resurfacing in TKA. METHODS: In the study, 14 bilateral knee osteoarthritis (OA) patients were randomized in the bilateral TKA to receive unilateral patellar resurfacing and contralateral patellar retention, including 28 knees, all were females, 53 to 78 years old, with average (66...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29041970/comparison-of-the-efficacy-of-static-versus-articular-spacers-in-two-stage-revision-surgery-for-the-treatment-of-infection-following-total-knee-arthroplasty-a-meta-analysis
#2
Hai Ding, Jian Yao, Wenju Chang, Fendou Liu
BACKGROUND: The aim of this study was to compare the outcomes of static versus articular spacers in two-stage reimplantation for the treatment of infected total knee arthroplasty (TKA). METHODS: The literature regarding the articulating and static spacers for treating infected TKA were searched in PubMed, Embase, Cochrane Library, Chinese Periodical Full-Text Database of CNKI, and Wanfang database. Data were extracted according to the inclusion and exclusion criteria and analyzed by Review Manager 5...
October 17, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29033158/revision-total-knee-arthroplasty-for-periprosthetic-joint-infection-is-associated-with-increased-postoperative-morbidity-and-mortality-relative-to-noninfectious-revisions
#3
Venkat Boddapati, Michael C Fu, David J Mayman, Edwin P Su, Peter K Sculco, Alexander S McLawhorn
BACKGROUND: Periprosthetic joint infection (PJI) after primary total knee arthroplasty (TKA) is a devastating complication. The short-term morbidity profile of revision TKA performed for PJI relative to non-PJI revisions is poorly characterized. The purpose of this study is to determine 30-day postoperative outcomes after revision TKA for PJI, relative to primary TKA and aseptic revision TKA. METHODS: The American College of Surgeons National Surgical Quality Improvement Program from 2005 to 2015 was queried for primary and revision TKA cases...
September 23, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29032478/total-knee-arthroplasty-in-patients-with-a-history-of-illicit-intravenous-drug-abuse
#4
David E Bauer, Andreas Hingsammer, Lukas Ernstbrunner, Alexander Aichmair, Andrea B Rosskopf, Franziska Eckers, Karl Wieser, Sandro F Fucentese
PURPOSE: Injection drug users are at high risk for both infection with blood-borne pathogens, namely, human immune deficiency virus (HIV), hepatitis-B, -C virus, various bacterial infections, as well as early primary and secondary joint degeneration. When total knee arthroplasty (TKA) is anticipated the risk of septic complications is a major concern. The purpose of this study was to assess the clinical and radiographic outcome of patients with a history of intravenous drug use after total knee arthroplasty...
October 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29026941/neutral-alignment-leads-to-higher-knee-society-scores-after-total-knee-arthroplasty-in-preoperatively-non-varus-patients-a-prospective-clinical-study-using-3d-ct
#5
Omer Slevin, Anna Hirschmann, Filippo F Schiapparelli, Felix Amsler, Rolf W Huegli, Michael T Hirschmann
PURPOSE: The optimal coronal alignment is still under debate. However, in most of the studies, alignment was only assessed using radiographs, which are not accurate enough for assessment of tibial and femoral TKA position. The primary purpose of this study was to assess the relationship between coronal TKA alignment using 3D-reconstructed CTs and clinical outcome in patients with preoperative varus in comparison with patients with natural or valgus deformity. It was the hypothesis that neutral limb alignment shows a better outcome after TKA...
October 12, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29025351/utilization-of-robotic-arm-assisted-total-knee-arthroplasty-for-soft-tissue-protection
#6
Assem A Sultan, Nicolas Piuzzi, Anton Khlopas, Morad Chughtai, Nipun Sodhi, Michael A Mont
Despite the well-established success of total knee arthroplasty (TKA), iatrogenic ligamentous and soft tissue injuries are infrequent, but potential complications that can have devastating impact on clinical outcomes. These injuries are often related to technical errors and excessive soft tissue manipulation, particularly during bony resections. Recently, robotic-arm assisted TKA was introduced and demonstrated promising results with potential technical advantages over manual surgery in implant positioning and mechanical accuracy...
October 13, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/29022797/surgery-performed-by-supervised-registrars-does-not-adversely-affect-medium-term-functional-outcomes-after-total-knee-replacement
#7
N Beattie, J F Maempel, S Roberts, H B Waterson, G Brown, I J Brenkel, P J Walmsley
Introduction Although total knee arthroplasty (TKA) is an index procedure for orthopaedic registrars, there is a lack of published research as to the effects of surgery when performed by supervised trainees. The aim of this study was to compare functional outcomes up to five years after primary TKA performed by consultants and trainee surgeons. Methods A retrospective analysis was conducted of prospectively collected data for 609 consecutive patients (339 female, 270 male) undergoing TKA. Patients were assessed preoperatively as well as at 18 months, three years and five years postoperatively, and American Knee Society objective knee and functional scores (AKSK and AKSF) were recorded...
September 15, 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/29021879/a-comparison-of-plain-radiography-with-computer-tomography-in-determining-coronal-and-sagittal-alignments-following-total-knee-arthroplasty
#8
G N Solayar, J Chinappa, I A Harris, D B Chen, S J Macdessi
Introduction: Optimal coronal and sagittal component positioning is important in achieving a successful outcome following total knee arthroplasty (TKA). Modalities to determine post-operative alignment include plain radiography and computer tomography (CT) imaging. This study aims to determine the accuracy and reliability of plain radiographs in measuring coronal and sagittal alignment following TKA. Materials and Methods: A prospective, consecutive study of 58 patients undergoing TKA was performed comparing alignment data from plain radiographs and CT imaging...
July 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28993076/unicompartmental-knee-arthroplasty-achieves-greater-flexion-with-no-difference-in-functional-outcome-quality-of-life-and-satisfaction-vs-total-knee-arthroplasty-in-patients-younger-than-55-years-a-propensity-score-matched-cohort-analysis
#9
Graham Seow-Hng Goh, Hamid Rahmatullah Bin Abd Razak, Darren Keng-Jin Tay, Shi-Lu Chia, Ngai-Nung Lo, Seng-Jin Yeo
BACKGROUND: Improvements in surgical techniques, implant design, and adherence to indications have resulted in favorable outcomes after unicompartmental knee arthroplasty (UKA), particularly in an older population. However, no studies have compared the performance of contemporary UKA and total knee arthroplasty (TKA) in a young population. METHODS: Prospectively collected registry data of 160 UKAs performed in 160 patients younger than 55 years were reviewed. Propensity scores generated using logistic regression were used to adjust for confounding variables of age, gender, body mass index, preoperative range of motion, Knee Society Score, Oxford Knee Score, and Short-Form 36, allowing matching of the TKA cohort to the UKA cohort in a 1:1 ratio using the nearest-neighbor method...
September 19, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28985252/age-and-sex-based-recovery-curves-to-track-functional-outcomes-in-older-adults-with-total-knee-arthroplasty
#10
Yong-Hao Pua, Felicia Jie-Ting Seah, Cheryl Lian-Li Poon, John Wei-Ming Tan, Ross Alan Clark, Jennifer Suet-Ching Liaw, Hwei-Chi Chong
Background: older adults with total knee arthroplasty (TKA) frequently undergo rehabilitation to address limited knee flexion range-of-motion, quadriceps weakness and gait speed limitations. This study aimed to develop age- and sex-specific recovery curves of knee flexion range-of-motion, quadriceps strength and fast gait speed post-TKA. Methods: a population-based sample of 2,987 patients undergoing primary TKA participated, of whom 2015 (68%) were 65 years of age or older...
August 30, 2017: Age and Ageing
https://www.readbyqxmd.com/read/28983215/mid-term-outcomes-of-metal-backed-unicompartmental-knee-arthroplasty-show-superiority-to-all-polyethylene-unicompartmental-and-total-knee-arthroplasty
#11
Jelle P van der List, Laura J Kleeblad, Hendrik A Zuiderbaan, Andrew D Pearle
BACKGROUND: Two commonly used tibial designs for unicompartmental knee arthroplasty (UKA) are all-polyethylene "inlay" and metal-backed "onlay" components. Biomechanical studies showed that the metal baseplate in onlay designs better distributes forces over the tibia but studies failed to show differences in functional outcomes between both designs at mid-term follow-up. Furthermore, no studies have compared both designs with total knee arthroplasty (TKA). QUESTIONS/PURPOSES: The goal of this study was to compare outcomes of inlay UKA and onlay UKA at mid-term follow-up and compare these with TKA outcomes...
October 2017: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
https://www.readbyqxmd.com/read/28980475/comparison-of-oral-and-intravenous-tranexamic-acid-for-prevention-of-perioperative-blood-loss-in-total-knee-and-total-hip-arthroplasty
#12
Mary Alice Gortemoller, Bryan Allen, Rochelle Forsyth, Kimberly Theiss, Kristal Cunningham, Calvin Tucker
BACKGROUND: Tranexamic acid (TA) is an antifibrinolytic agent that prevents perioperative blood loss in patients undergoing total hip arthroplasty (THA) and total knee arthroplasty (TKA). This benefit has been established with the intravenous (IV) dosage form, but there is limited evidence evaluating oral TA in this setting. OBJECTIVE: To compare the effect of oral versus IV TA on perioperative blood loss in those undergoing TKA or THA. METHODS: In this single-centered retrospective chart review, participants at least 18 years of age who received IV or oral TA from a single surgeon who performed their THA or TKA were included...
October 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28976426/blood-conservation-using-tranexamic-acid-is-not-superior-to-epsilon-aminocaproic-acid-after-total-knee-arthroplasty
#13
RANDOMIZED CONTROLLED TRIAL
Clifford Kent Boese, Leslie Centeno, Ryan W Walters
BACKGROUND: Epsilon-aminocaproic acid (EACA) and tranexamic acid (TXA) are synthetic amino acid derivatives that interfere with fibrinolysis, promoting hemostasis by pharmacological means. Although both drugs have been shown to decrease blood loss with a minimal risk of thromboembolic adverse events following cardiac and vascular surgery, we are aware of only 1 published trial that directly compared the antifibrinolytic effects of EACA with those of TXA after total knee arthroplasty (TKA)...
October 4, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28970126/columbus%C3%A2-computer-navigated-total-knee-arthroplasty-gap-balancing-versus-measured-resection
#14
N D Clement, N Makaram, J Bell, C H Tiemessen, S A Mehdi, S J Livingston
BACKGROUND: The aim of this study was to compare the medium term functional outcome and patient satisfaction of gap balanced (GB) with measured resection (MR) total knee arthroplasty (TKA) using computer navigation. METHODS: A cohort of 144 consecutive computer navigated TKA were retrospectively identified from an arthroplasty database. Functional assessment using the Oxford Knee Score (OKS) and patient satisfaction were obtained from 113 patients at a mean follow-up of 5...
September 29, 2017: Knee
https://www.readbyqxmd.com/read/28970125/medial-rather-than-lateral-knee-instability-correlates-with-inferior-patient-satisfaction-and-knee-function-after-total-knee-arthroplasty
#15
Hiroyuki Tsukiyama, Shinichi Kuriyama, Masahiko Kobayashi, Shinichiro Nakamura, Moritoshi Furu, Hiromu Ito, Shuichi Matsuda
BACKGROUND: It is commonly thought that balanced medial and lateral tibiofemoral joint gaps are essential, but the effect of joint laxity on clinical outcome after total knee arthroplasty (TKA) is unclear. It was hypothesised that medial joint laxity correlates with inferior patient satisfaction and knee function, although lateral joint laxity is allowed to a certain degree in TKA. METHODS: This study included 50 knees that underwent primary TKA. Knee laxity was measured with postoperative stress radiographs in flexion and extension, and patient satisfaction and knee function were evaluated by the 2011 Knee Society Knee Scoring System...
September 29, 2017: Knee
https://www.readbyqxmd.com/read/28969683/clinical-and-radiological-results-of-cruciate-retaining-total-knee-arthroplasty-with-the-nexgen%C3%A2-cr-system-comparison-of-patellar-resurfacing-versus-retention-with-more-than-14%C3%A2-years-of-follow-up
#16
Keun Churl Chun, Sung Hyun Lee, Jong Seok Baik, Seng Hwan Kook, Joung Kyue Han, Churl Hong Chun
BACKGROUND: The purpose of this study is to analyze clinical and radiological outcomes of patients (with a minimum of 14 years of follow-up) who underwent cruciate-retaining (CR) total knee arthroplasty (TKA) using a NexGen®-CR, comparing a patellar resurfacing group with a patellar retention group. METHODS: From June 1996 to April 2002, 116 cases of TKA using a NexGen®-CR who had at least 14 years of follow-up were enrolled in this study. Among them, 68 cases had patellar resurfacing and 48 had patellar retention...
October 2, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28969350/influence-of-hip-abductor-strength-on-functional-outcomes-before-and-after-total-knee-arthroplasty-post-hoc-analysis-of-a-randomized-controlled-trial
#17
RANDOMIZED CONTROLLED TRIAL
Brian J Loyd, Jason M Jennings, Dana L Judd, Raymond H Kim, Pamela Wolfe, Douglas A Dennis, Jennifer E Stevens-Lapsley
Background: Total knee arthroplasty (TKA) is associated with declines in hip abductor (HA) muscle strength; however, a longitudinal analysis demonstrating the influence of TKA on trajectories of HA strength change has not been conducted. Objective: The purpose of this study was to quantify changes in HA strength from pre-TKA through 3 months post-TKA and to characterize the relationship between HA strength changes and physical performance. Design: This study is a post hoc analysis of a randomized controlled trial...
September 1, 2017: Physical Therapy
https://www.readbyqxmd.com/read/28963154/revision-total-knee-arthroplasty-for-failed-high-tibial-osteotomy-and-unicompartmental-knee-arthroplasty-have-similar-patient-reported-outcome-measures-in-a-two-year-follow-up-study
#18
J B T Lim, H C Chong, H N Pang, K J D Tay, S L Chia, N N Lo, S J Yeo
AIMS: Little is known about the relative outcomes of revision of unicompartmental knee arthroplasty (UKA) and high tibial osteotomy (HTO) to total knee arthroplasty (TKA). The aim of this study is to compare the outcomes of revision surgery for the two procedures in terms of complications, re-revision and patient-reported outcome measures (PROMs) at a minimum of two years follow-up. PATIENTS AND METHODS: This study was a retrospective review of data from an institutional arthroplasty registry for cases performed between 2001 and 2014...
October 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28958659/risk-factors-for-repeat-debridement-spacer-retention-amputation-arthrodesis-and-mortality-after-removal-of-an-infected-total-knee-arthroplasty-with-spacer-placement
#19
Jourdan M Cancienne, Victor A Granadillo, Kishan J Patel, Brian C Werner, James A Browne
BACKGROUND: Chronic periprosthetic joint infection (PJI) after total knee arthroplasty (TKA) is most commonly addressed with a 2-stage exchange procedure. The purpose of this study is to examine the natural history of patients who have undergone prosthesis removal and spacer placement and evaluate risk factors for outcomes other than reimplantation. METHODS: Patients who underwent removal of an infected TKA and placement of an antibiotic spacer for PJI were identified in a Medicare database...
September 5, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28957738/standard-versus-physiologic-bone-preparation-in-total-knee-arthroplasty-and-the-effect-on-joint-space-opening
#20
Timothy A Burkhart, Benjamin V Herman, Kevin Perry, Pieter-Jan Vandekerckhove, James Howard, Brent Lanting
BACKGROUND: Total knee arthroplasty is an effective treatment for osteoarthritis. Restoration of physiologic varus alignment may restore the native soft tissue tension and improve outcomes. METHODS: Six paired fresh-frozen knee specimens were used to perform total knee arthroplastys. The left and right sides of were randomly assigned to have either a physiologic alignment cut or a standard of care neutral alignment bony cut prior to the implantation. Loads of 100 and 200N were applied at 0, 30, 60, and 90° of flexion and the magnitude of the medial and lateral compartment distraction was measured...
September 18, 2017: Clinical Biomechanics
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