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https://www.readbyqxmd.com/read/28431129/cooled-radiofrequency-ablation-of-the-genicular-nerves-for-chronic-pain-due-to-knee-osteoarthritis-six-month-outcomes
#1
Zachary L McCormick, Marc Korn, Rajiv Reddy, Austin Marcolina, David Dayanim, Ryan Mattie, Daniel Cushman, Meghan Bhave, Robert J McCarthy, Dost Khan, Geeta Nagpal, David R Walega
Objective. : Determine outcomes of cooled radiofrequency ablation (C-RFA) of the genicular nerves for treatment of chronic knee pain due to osteoarthritis (OA). Design. : Cross-sectional survey. Setting.:  Academic pain medicine center. Subjects.:  Consecutive patients with knee OA and 50% or greater pain relief following genicular nerve blocks who underwent genicular nerve C-RFA. Methods.:  Survey administration six or more months after C-RFA...
April 19, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28430692/lack-of-association-between-the-use-of-nerve-blockade-and-the-risk-of-postoperative-chronic-opioid-use-among-patients-undergoing-total-knee-arthroplasty-evidence-from-the-marketscan-database
#2
Eric C Sun, Brian T Bateman, Stavros G Memtsoudis, Mark D Neuman, Edward R Mariano, Laurence C Baker
BACKGROUND: Total knee arthroplasty (TKA) is associated with high rates of prolonged opioid use after surgery (10%-34%). By decreasing opioid use in the immediate postoperative period, perioperative nerve blockade has been hypothesized to decrease the risk of persistent opioid use. METHODS: Using health care utilization data, we constructed a sample of 120,080 patients undergoing TKA between 2002 and 2012 and used billing data to identify the utilization of peripheral or neuraxial blockade...
April 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28420413/is-combined-use-of-intravenous-and-intraarticular-tranexamic-acid-superior-to-intravenous-or-intraarticular-tranexamic-acid-alone-in-total-knee-arthroplasty-a-meta-analysis-of-randomized-controlled-trials
#3
Bobin Mi, Guohui Liu, Huijuan Lv, Yi Liu, Kun Zha, Qipeng Wu, Jing Liu
BACKGROUND: Tranexamic acid (TXA) has been proven to be effective in reducing blood loss and transfusion rate after total knee arthroplasty (TKA) without increasing the risk of deep vein thrombosis (DVT) and pulmonary embolism (PE). Recently, an increasing number of studies have been interested in applying combined intravenous (IV) with intraarticular (IA) tranexamic acid in total knee arthroplasty. The purpose of this meta-analysis was to compare the blood loss and complications of combined TXA with IV TXA or IA TXA on TKA...
April 18, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28413140/is-day-of-surgery-associated-with-adverse-clinical-and-economic-outcomes-following-primary-total-knee-arthroplasty
#4
Matthew R Boylan, Dean C Perfetti, Qais Naziri, Aditya V Maheshwari, Carl B Paulino, Michael A Mont
BACKGROUND: As orthopedics transition to value-based purchasing, hospitals and providers are incentivized to identify inefficiencies of care delivery. In our experience, weekends are characterized by decreased staffing of ancillary services to coordinate patient discharges, which can lead to prolonged hospital stays for many of our primary total knee arthroplasty (TKA) admissions. METHODS: We identified 115,053 patients who underwent primary TKA on a weekday between 2009 and 2013 in New York State...
March 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28410836/low-preoperative-bmd-is-related-to-high-migration-of-tibia-components-in-uncemented-tka-92-patients-in-a-combined-dexa-and-rsa-study-with-2-year-follow-up
#5
Mikkel R Andersen, Nikkolaj S Winther, Thomas Lind, Henrik M Schrøder, Gunnar Flivik, Michael M Petersen
BACKGROUND: The fixation of uncemented tibia components in total knee arthroplasty may rely on the bone quality of the tibia; however, no previous studies have shown convincing objective proof of this. Component migration is relevant as it has been shown to predict aseptic loosening. METHODS: We performed 2-year follow-up of 92 patients who underwent total knee arthroplasty surgery with an uncemented tibia component. Bone mineral density (BMD; g/cm(2)) of the tibia host bone was measured preoperatively using dual energy X-ray absorptiometry...
February 28, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28409075/bilateral-patella-dislocation-after-total-knee-arthroplasty-a-report-of-two-cases-and-a-review-of-the-literature
#6
Raju Vaishya, Amit Kumar Agarwal, Sagar Panthi, Vipul Vijay, Abhishek Vaish
Patellar instability is a known but catastrophic complication after total knee arthroplasty (TKA). The occurrence of bilateral dislocation of the patella after TKA is exceedingly rare. It may present as anterior knee pain, and diagnosis can easily be made clinically or by plain radiographs. Early diagnosis with surgical realignment and repair of the extensor mechanism can provide good outcomes after this complication.
March 4, 2017: Curēus
https://www.readbyqxmd.com/read/28400873/good-early-results-obtained-with-a-guided-motion-implant-for-total-knee-arthroplasty-a-consecutive-case-series
#7
Hagen Hommel, Kai Wilke
BACKGROUND: Previous studies have shown a high incidence of complications with a bi-cruciate stabilized (BCS) guided-motion total knee arthroplasty (TKA) design, which led to recent modifications of the design by the manufacturer. OBJECTIVE: The current study was undertaken to assess whether the use of this TKA system with an extension-first surgical technique is associated with a similar rate of short-term adverse outcome as reported in literature. MATERIAL AND METHODS: This retrospective study enrolled 257 consecutive patients (257 knees) undergoing TKA for osteoarthritis of the knee, with the first 153 receiving cemented Journey BCS I implants and the remaining 104 receiving cemented Journey BCS II implants when these became available...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28400204/computed-navigated-total-knee-arthroplasty-compared-to-computed-tomography-scans
#8
Ron Batash, Guy Rubin, Alexander Lerner, Hussein Shehade, Nimrod Rozen, David E Rothem
BACKGROUND: Successful total knee arthroplasty (TKA) includes accurate alignment. Controversy remains as to whether computer-navigated TKA improves the overall result and clinical outcome. Our aim is to compare the limb alignment and prosthesis positioning according to the pre- and postoperative computed tomography (CT) scans with the data collected from the navigation system. METHODS: We compared the pre- and postoperative limb alignments and prosthesis alignment provided by the Orthopilot navigation system, Aesculap®, with CT scans measured by the Traumacad® software of 70 TKAs...
April 8, 2017: Knee
https://www.readbyqxmd.com/read/28399605/cementless-total-knee-arthroplasty-in-patients-older-than-75-years
#9
Jared M Newman, Anton Khlopas, Morad Chughtai, Chukwuweike U Gwam, Jaydev B Mistry, George A Yakubek, Steven F Harwin, Michael A Mont
Some surgeons have been hesitant to use cementless fixation for total knee arthroplasty (TKA) in elderly patients due to concerns regarding successful bone biological fixation. Therefore, this study evaluated: (1) implant survivorship, (2) functional outcomes, (3) radiographic outcomes, and (4) complications in patients over 75 years of age who underwent cementless total knee arthroplasty. A total of 134 patients (142 TKAs) older than 75 years at a single institution between June 2008 and June 2014 were retrospectively reviewed...
April 11, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28396931/does-low-constraint-mobile-bearing-knee-prosthesis-give-satisfactory-results-for-severe-coronal-deformities-a-five-to-twelve-year-follow-up-study
#10
Jaroslaw Czekaj, Camdon Fary, Thierry Gaillard, Sebastien Lustig
PURPOSE: Severe varus and valgus knee deformities traditionally are replaced with constrained implants, with a number of disadvantages. We present our results in this challenging group using a low constraint deep-dish mobile bearing implant design. METHODS: One hundred fifty-four patients (170 arthroplasties) who underwent primary TKA using a deep-dish, mobile bearing posterior-stabilized implant for severe varus (HKA < 170°) or valgus (HKA > 190°) deformity between 2004 and 2009 were evaluated at a mean of 6...
April 11, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28395419/-individual-difference-of-coronal-bowing-of-femur-and-its-influence-on-the-lower-limbs-alignment-after-the-total-knee-arthroplasty
#11
W Wu, W S Guo, L M Cheng, Z H Liu, Q D Zhang, N F Zhang
Objective: To disclose the correlation between the femur bowing angle(FBA) and vulgas correction angle(VCA), anlysys its influence on the total knee arthroplasty and the lower limbs alignment. Methods: From Janurary 2013 to December 2015, 699 patients who had received total knee arthroplasty(TKA)were collected in the Department of Joint Surgery, China-Japan Friendship. The FBA, VCA, offset of the proximal femur, the lengh of the femur, the neck shaft angle of the femur of the eligible cases from the long leg X-ray were measured...
April 4, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28395393/opportunities-in-total-knee-arthroplasty-worldwide-surgeons-perspective
#12
Michael Dunbar, Jared M Newman, Anton Khlopas, Morad Chughtai, Nick Martinez, Manoshi Bhowmik-Stoker, Michael A Mont
INTRODUCTION: This study surveyed a group of US and international orthopaedic surgeons to prioritize areas of improvement in primary total knee arthroplasty (TKA). Specifically, we assessed surgeon responses regarding the top five areas of TKA needing improvement; which were stratified by: a) US surgeons, b) international surgeons, c) US surgeons' implant-brand-loyalty, and d) surgeons' years of experience and case volume. MATERIALS AND METHODS: Four hundred and eighteen surgeons who were board-certified, in practice for at least two years, spent 60% of their time in clinical practice, and performed a minimum of 25 lower extremity joint arthroplasties per year were surveyed...
April 11, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28395389/tranexamic-acid-and-computer-assisted-surgery-in-cemented-and-cementless-total-knee-arthroplasty-are-the-effects-additive-for-blood-conservation
#13
Michael Fleischman, Mark Hood, Mary Ziemba-Davis, R Michael Meneghini
INTRODUCTION: Efforts continue to minimize blood loss associated with total knee arthroplasty (TKA). The primary objective of this study was to determine whether computer-assisted surgery (CAS) and tranexamic acid (TXA) were additive in minimizing blood loss in cemented TKA. The secondary objective was to assess the combined effectiveness of CAS and TXA in cementless TKA. MATERIALS AND METHODS: A retrospective study of 393 consecutive primary TKAs with cemented and cementless fixation was performed...
April 11, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28390885/what-are-the-preoperative-outcome-measures-that-predispose-to-periprosthetic-fractures-after-primary-total-knee-arthroplasty
#14
Jason Beng Teck Lim, Hamid Rahmatullah Bin Abd Razak, Suraya Zainul-Abidin, John Carson Allen, Joyce Suang Bee Koh, Tet Sen Howe
BACKGROUND: There is little known in the literature about whether preoperative patient-reported outcome measures (PROMs) would affect the risk of periprosthetic fractures (PPFs) after primary total knee arthroplasty (TKA). Our study aims to evaluate the predictive values of PROMs on PPF after primary TKA. We hypothesize that poorer PROMs are associated with a higher risk of PPF after primary TKA. METHODS: We reviewed prospectively collected data in our hospital arthroplasty registry...
March 16, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28390882/risk-benefit-on-quality-of-life-after-total-knee-arthroplasty-in-octogenarians
#15
Alejandro Lizaur-Utrilla, Daniel Martinez-Mendez, Francisco A Miralles-Muñoz, Luis Marco-Gomez, Fernando A Lopez-Prats
BACKGROUND: Clinical outcomes of total knee arthroplasty (TKA) in very older patients have been widely studied, but the available evidence on quality of life (QOL) is limited. The objective was to evaluate the impact of TKA on the QOL in octogenarian patients and assess whether the risk-benefit justified surgery. METHODS: Prospective study comparing 143 octogenarian and 149 septuagenarian patients. QOL was assessed with the Short Form-12 (SF-12) and the Western Ontario and McMaster Universities Arthritis Index (WOMAC) questionnaires and functional outcomes with the Knee Society score (KSS)...
March 16, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28389879/superior-long-term-survival-for-fixed-bearing-compared-with-mobile-bearing-in-ligament-balanced-total-knee-arthroplasty
#16
P J C Heesterbeek, A H van Houten, J S Klenk, H Eijer, B Christen, A B Wymenga, A J Schuster
PURPOSE: Only few long-term data on ligament-balanced cruciate-retaining total knee arthroplasty (CR TKA) are currently available. Either a mobile- or fixed-bearing insert can be chosen, which showed good mid-term outcome and few complications and revisions. This multi-centre retrospective cross-sectional cohort study investigated the 12-year results of primary TKA using a balancing gap technique and compared survival and clinical outcome between fixed and mobile inserts. METHODS: In this retrospective cross-sectional cohort study, 557 cases of three clinics (2 Swiss, 1 Dutch) operated between 1998 and 2003 with the first series of a TKA implanted with a balanced gap technique (433 (77...
April 7, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28379915/total-knee-arthroplasty-in-patients-with-cerebral-palsy-a-matched-cohort-study-to-patients-with-osteoarthritis
#17
Matthew T Houdek, Chad D Watts, Cody C Wyles, Robert T Trousdale, Todd J Milbrandt, Michael J Taunton
INTRODUCTION: Currently, few data examine the use of total knee arthroplasty (TKA) in patients with cerebral palsy (CP). This study reviewed the outcomes of TKA in patients with CP compared with a matched cohort undergoing TKA for primary osteoarthritis. METHODS: Over a 28-year period, 15 TKAs in patients with a diagnosis of CP were identified. The cohort was 53% men, with a mean age of 58 years. Patients with CP were matched 1:2 based on age, sex, body mass index, and year of surgery with a group of patients undergoing TKA for osteoarthritis...
May 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28378275/what-is-the-responsiveness-and-respondent-burden-of-the-new-knee-society-score
#18
Rajesh N Maniar, Parul R Maniar, Debashish Chanda, Dnyaneshwar Gajbhare, Toral Chouhan
BACKGROUND: Although the new Knee Society score (NKSS) has been validated by a task force, a longitudinal study of the same cohort of patients to evaluate the score's responsiveness and respondent burden has not been reported, to our knowledge. QUESTIONS/PURPOSES: We analyzed the NKSS for (1) responsiveness; (2) respondent burden; and (3) convergent validity in 148 patients studied longitudinally during more than 1 year. METHODS: During an 8-month period, 165 patients underwent TKA by the same surgeon at our institution, of whom 148 (90%) completed this study; the others were excluded because of distance to travel or loss to followup at the specified time...
April 4, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28378211/intra-articular-versus-intravenous-tranexamic-acid-application-in-total-knee-arthroplasty-a-meta-analysis-of-randomized-controlled-trials
#19
Bobin Mi, Guohui Liu, Wu Zhou, Huijuan Lv, Yi Liu, Kun Zha, Qipeng Wu, Jing Liu
BACKGROUND: The purpose of this meta-analysis was to compare the blood loss and complications of intra-articular (IA) with intravenous (IV) tranexamic acid (TXA) for total knee arthroplasty (TKA). METHODS: A comprehensive search of studies was conducted to identify related articles in Pubmed, Embase, Cochrane central Register of Controlled Trials, springerLink, OVID and the Research published from January 1980 to September 2016. All studies that compared IA TXA with IV TXA application on TKA were included...
April 4, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28378009/the-utility-of-bicruciate-retaining-total-knee-arthroplasty
#20
Feroz A Osmani, Savyasachi C Thakkar, Kristopher Collins, Ran Schwarzkopf
BACKGROUND: We describe the features of modern and historical bicruciate-retaining (BCR) total knee arthroplasty (TKA) implants compared with other TKA implant designs, reviewing kinematics, proprioception, operative technique, and clinical results. METHODS: We performed a review based on PubMed, Embase, CINAHL Plus, and Cochrane databases from January 1990 to April 2016 using combinations of the following keywords: "bicruciate-retaining arthroplasty," "bicruciate-retaining total knee arthroplasty," "bicruciate-retaining TKA," "kinematics," "knee kinematics," and "TKA kinematics...
March 2017: Arthroplasty Today
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