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https://www.readbyqxmd.com/read/27920813/densitometric-evaluation-of-bone-prosthetic-counterface-in-hip-and-knee-arthroplasty-with-modern-implants
#1
Andrea Cozzi Lepri, Marco Giorgini, Carla Signorini, Christian Carulli, Roberto Civinini, Maria Luisa Brandi, Massimo Innocenti
INTRODUCTION: Recent acquisitions of the complex mechanisms of osseointegration between implants and host bone have gained attention, accordingly to the methods of evaluation of these interactions. DEXA analysis is considered an useful tool to assess such phenomena, in order to analyse in a quantitative manner the local metabolic activity of the bone, and to evaluate over the time the integration between host bone and prosthetic components. The purpose of the present study is to report about a preliminary experience in the analysis of osseointegration processes of patients undergoing a primary Total Hip Arthroplasty (THA) or a revision Total Knee Arthroplasty (rTKA)...
May 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/27914627/comparison-of-in-vivo-measured-loads-in-knee-hip-and-spinal-implants-during-level-walking
#2
Philipp Damm, Ines Kutzner, Georg Bergmann, Antonius Rohlmann, Hendrik Schmidt
Walking is a task that we seek to understand because it is the most relevant human locomotion. Walking causes complex loading patterns and high load magnitudes within the human body. This work summarizes partially published load data collected in earlier in vivo measurement studies on 9 patients with telemeterized knee endoprostheses, 10 with hip endoprostheses and 5 with vertebral body replacements. Moreover, for the 19 endoprosthesis patients, additional simultaneously measured and previously unreported ground reaction forces are presented...
November 28, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27913813/-rehabilitation-after-hip-and-knee-endoprosthetic-treatment-in-the-elderly
#3
H Bork
Due to current demographic developments with a continuous increase in average life expectancy and improved medical treatment, the number of elderly patients with joint replacement of the lower extremities also has increased in recent years. Most of these patients have not only one but several chronic diseases requiring treatment and medication. Drug-drug interaction and functional restrictions of the elderly additionally reduce the postoperative psychophysical capacity; therefore, special knowledge in rehabilitative treatment and pain management is necessary...
December 2, 2016: Der Orthopäde
https://www.readbyqxmd.com/read/27878804/assessment-of-cardiovascular-risk-in-patients-undergoing-total-joint-alloplasty-the-crash-joint-study
#4
Pawel Legosz, Marcin Kotkowski, Anna E Platek, Pawel Maldyk, Bartosz Krzowski, Anna Rys, Karolina Semczuk, Filip M Szymanski, Krzysztof J Filipiak
BACKGROUND: Risk assessment is of particular importance for patients undergoing surgical interventions. Orthopedic procedures, especially total joint alloplasty are major procedure associated with high perioperative risk, as well as one of the highest rates of complications. The aim of the present study was to establish the prevalence of classical and non-classical cardiovascular risk factors in patients undergoing total hip or knee alloplasty. METHODS: The CRASH-JOINT (Cardiovascular Risk Assessment ScHeme in JOINT alloplasty) was a prospective, epidemiological study performed in consecutive patients scheduled for total joint (hip or knee) replacement surgery...
November 23, 2016: Kardiologia Polska
https://www.readbyqxmd.com/read/27833769/first-case-report-of-a-late-onset-knee-periprosthetic-joint-infection-caused-by-lactococcus-garvieae
#5
V-I Neagoe, S Zytoun, H-J Neuhaus
Lactococcus garvieae is known as a Gram-positive, catalase-negative, and facultatively anaerobic fish pathogen. The association between Lactococcus spp. and human infectious diseases is described as being mainly associated with lumbar osteomyelitis, hepatic abscess, and infective endocarditis. In the literature of orthopedic post-prosthetic infections, L. garvieae was associated with a case of hip prosthetic infection in a fishmonger woman. We present the case of a 79-year-old male patient with multiple comorbidities, who is admitted to our center with a 5-day history of pain, swelling, and motility disorder of the right knee by the presence of a bicondylar knee replacement surgery, which was performed due to gonarthrosis 17 years ago...
2016: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/27826089/ulf-fernstrom-1915-1985-and-his-contributions-to-the-development-of-artificial-disc-replacements-a-historical-vignette
#6
REVIEW
Christian Fisahn, Brittni Burgess, Joe Iwanaga, Jens R Chapman, Rod J Oskouian, R Shane Tubbs
INTRODUCTION: Artificial disc replacements, which serve the function of separating vertebrae to allow for proper spinal alignment, can help treat debilitating low back pain in patients who have failed other conservative methods of treatment. Ulf Fernstrom was the pioneer of artificial disc replacement, and his contribution in the way of Fernstrom "Balls" dramatically altered spinal surgery and technique by demonstrating the proper technique and implant that should be utilized for areas requiring motion in many planes...
November 5, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27825396/prosthetic-joint-infection-following-invasive-dental-procedures-and-antibiotic-prophylaxis-in-patients-with-hip-or-knee-arthroplasty
#7
Feng-Chen Kao, Yao-Chun Hsu, Wen-Hui Chen, Jiun-Nong Lin, Ying-Ying Lo, Yuan-Kun Tu
OBJECTIVES We aimed to clarify whether invasive dental treatment is associated with increased risk of prosthetic joint infection (PJI) and whether prophylactic antibiotics may lower the infection risk remain unclear. DESIGN Retrospective cohort study. PARTICIPANTS All Taiwanese residents (N=255,568) who underwent total knee or hip arthroplasty between January 1, 1997, and November 30, 2009, were screened. METHODS The dental cohort consisted of 57,066 patients who received dental treatment and were individually matched 1:1 with the nondental cohort by age, sex, propensity score, and index date...
November 9, 2016: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/27787880/reducing-hospital-readmission-disparities-of-older-black-and-white-adults-after-elective-joint-replacement-the-role-of-nurse-staffing
#8
Karen B Lasater, Matthew D McHugh
OBJECTIVES: To examine racial differences in readmissions of older adults undergoing elective total hip and knee replacement, to determine the relationship between nurse staffing and readmission, and to study whether the relationship between staffing and readmission differs for older black and white adults. DESIGN: Cross-sectional analysis of multiple linked secondary data sources. SETTING: Nonfederal acute care hospitals in California, Florida, New Jersey, and Pennsylvania (n = 483)...
October 27, 2016: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/27785671/a-crosswalk-between-ucla-and-lower-extremity-activity-scales
#9
Hassan M K Ghomrawi, Yuo-Yu Lee, Christina Herrero, Amethia Joseph, Douglas Padgett, Geoffrey Westrich, Michael Parks, Stephen Lyman
BACKGROUND: The University of California, Los Angeles (UCLA) activity scale and the Lower Extremity Activity Scale (LEAS) are the two most-widely used and rigorously developed scales for assessing activity level in patients having joint replacement. However, the two scales are not convertible, and the level of correlation between the two is not clear. Creating a crosswalk between these scales; that is, a concordance table to convert scores from one scale to the other and vice versa, will help compare results from existing studies using either scale, and pool those results for meta-analyses...
October 26, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27781564/improvements-in-physical-function-and-pain-sustained-for-up-to-10-years-after-knee-or-hip-arthroplasty-irrespective-of-mental-health-status-before-surgery
#10
G M E E Geeske Peeters, Sophia Rainbird, Michelle Lorimer, Annette J Dobson, Gita D Mishra, Stephen E Graves
Background and purpose - There are concerns that mental health (MH) may influence outcomes of total knee arthroplasty (TKA) or total hip arthroplasty (THA). We examined effects of poor MH before surgery on long-term outcomes of osteoarthritis-related TKA or THA in women. Patients and methods - The data were from 9,737 middle-aged participants (47-52 years) and 9,292 older participants (73-78 years) in the Australian Longitudinal Study on Women's Health who completed surveys between 1998 and 2013. Dates of arthroplasties were obtained from the Australian Orthopaedics Association National Joint Replacement Registry...
October 26, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27776899/the-association-between-hospital-length-of-stay-and-90-day-readmission-risk-within-a-total-joint-arthroplasty-bundled-payment-initiative
#11
Jarrett Williams, Benjamin S Kester, Joseph A Bosco, James D Slover, Richard Iorio, Ran Schwarzkopf
BACKGROUND: To curb the unsustainable rise in health care expenses, health care payers are developing programs to incentivize hospitals and physicians to improve the value of care delivered to patients. Payers are utilizing various metrics, such as length of stay (LOS) and unplanned readmissions, to track progression of quality metrics. Relevant to orthopedic surgeons, the Centers for Medicare and Medicaid Services announced in 2015 the Comprehensive Care for Joint Replacement Payment Model-a program aimed at improving the quality of health care delivered to patients by shifting more of the financial risk of patient care onto providers...
September 28, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27776373/arthroplasty-registries-improving-clinical-and-economic-outcomes
#12
P Maxwell Courtney, David C Markel
With renewed focus on achieving value for patients in total hip and knee arthroplasty, payors, hospitals, and physicians strive to provide quality care while minimizing cost. Large registry datasets have gained popularity in the United States to track implant survivorship and outcomes after joint replacement. Partnerships among surgeons, insurers, and health systems have improved on earlier administrative datasets from Medicare to measure quality and outcomes. Participation in state and national registries can help surgeons and hospitals gain a financial advantage in several insurers' quality programs and alternative payment models...
October 24, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27760092/anxiety-and-depression-levels-in-rheumatoid-arthritis-patients-before-and-after-joint-replacement-procedure
#13
Joanna Pietrzak, Paulina Kwarta, Michał Karbownik, Łukasz Mokros, Paula Zdanowicz, Dawid Miśkowiec, Andrzej Witusik, Adam Antczak, Tadeusz Pietras
: The progression of the inflammatory process in the course of rheumatoid arthiritis (RA) may cause a permanent destruction of joints, which in case of bigger ones (i.e. hip or knee) may be particularly a psychological burden for a patient. AIM: The aim of the study was to verify whether implantation of hip or knee endoprosthesis affect anxiety and depressive symptoms among patients with RA. MATERIALS AND METHODS: The study enrolled a group of 128 rheumatoid arthritis patients, including 64 patients before and 64 patients after the joint replacement procedure...
October 19, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27756352/is-there-a-risk-of-permanent-renal-dysfunction-after-primary-total-hip-and-knee-joint-replacements
#14
Basim Kamil Hassan, Ram Benny Christian Dessau, Arne Sahlström
BACKGROUND: Permanent renal dysfunction is considered as being a serious complication which may occur after major surgery and which furthermore may lead to increased morbidity and mortality. The objective of this study was to analyze the incidence of long-term postoperative renal dysfunction after primary total hip and knee joint replacements. METHODS: Long-term postoperative renal dysfunction was analyzed in a retrospective study of 1301 consecutive primary total hip and knee joint replacements performed between January 2009 and December 2013...
October 19, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27755178/genetic-association-studies-in-osteoarthritis-is-it-fairytale
#15
Sophie C Warner, Ana M Valdes
PURPOSE OF REVIEW: Osteoarthritis is a common complex disorder with a strong genetic component. Other identified risk factors such as increasing age and overweight do not fully explain the risk of osteoarthritis. Here, we highlight the main findings from genetic association studies on osteoarthritis to date. RECENT FINDINGS: Currently, genetic association studies have identified 21 independent susceptibility loci for osteoarthritis. Studies have focused on hip, knee and hand osteoarthritis, as well as posttotal joint replacement and minimum joint space width, a proxy for cartilage thickness...
January 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/27748055/long-term-safety-and-efficacy-of-fulranumab-in-patients-with-moderate-to-severe-osteoarthritis-pain-a-randomized-double-blind-placebo-controlled-study
#16
Panna Sanga, Nathaniel Katz, Elena Polverejan, Steven Wang, Kathleen M Kelly, Juergen Haeussler, John Thipphawong
OBJECTIVE: To evaluate long-term safety and efficacy of fulranumab in patients with moderate-to-severe chronic osteoarthritis (OA) knee or hip pain. METHODS: In this placebo-controlled, phase-2 double-blind (DB) extension study, patients who were equally randomized to 1mgQ4wk, 3mgQ8wk, 3mgQ4wk, 6mgQ8wk, or10mgQ8wk fulranumab (s.c.) or placebo in the 12-week DB efficacy phase, and completed this DB efficacy phase, were eligible to continue the dose throughout a 92-week extension phase followed by a 24-week posttreatment follow-up (PFTU)...
October 16, 2016: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/27741100/topical-versus-systemic-tranexamic-acid-after-total-knee-and-hip-arthroplasty-a-meta-analysis-of-randomized-controlled-trials
#17
Yongcai Chen, Zhuo Chen, Shuo Cui, Zhiyang Li, Zhengjiang Yuan
BACKGROUND: Tranexamic acid (TXA) is an antifibrinolytic drug widely used to reduce blood loss during joint replacements, including total knee arthroplasty (TKA) and total hip arthroplasty (THA). However, there is no final consensus regarding the composition of an optimal administration of TXA regime between topical and systemic (intravenous). The purpose of our study was to compare the efficacy of topical and intravenous (IV) regimen of TXA during TKA and THA. METHODS: Five relevant electronic online databases, PubMed, EMBASE, the Cochrane Central Register of Controlled Trials, Web of Science and Chinese Biomedical Database were systematically searched in November 2015...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27728925/-diagnostic-algorithm-for-failure-analysis-of-painful-total-hip-arthroplasties
#18
B Fink, R Lass
Background: Total hip arthroplasty (THA) is one of the most common and successful surgical procedures in orthopedic surgery and clinical success can be characterized by the revision rate and improvement of function, as well as the patient's satisfaction and pain. Despite the clinical success of primary THA with 10-year survival rates as high as 96 % (Swedish Hip Arthroplasty Register, 2011), the prevalence of groin pain after conventional total hip replacement ranges from 0.4 to 18.3 % and activity-limiting thigh pain is still an existing problem linked to the femoral component of uncemented hip replacement in up to 1...
October 2016: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/27696728/beta-blocker-use-associates-with-lower-prevalence-of-joint-pain-and-lower-opioid-requirement-in-people-with-osteoarthritis
#19
Ana M Valdes, Abhishek Abhishek, Kenneth Muir, Weiya Zhang, Rose A Maciewicz, Michael Doherty
OBJECTIVE: Recent findings suggest that β-adrenergic blockers have anti-nociceptive properties. The aim of this study was to compare levels of large joint pain between those on adrenergic blockers and those on other antihypertensive medications Methods: Data from the GOAL study, a secondary care cohort of osteoarthritis (OA), were used. Joint pain was assessed using the Western Ontario and McMaster Universities Arthritis (WOMAC) pain score in 873 individuals who had symptomatic hip and/or knee OA and hypertension, and who were on ≥1 prescription antihypertensive medications...
October 1, 2016: Arthritis Care & Research
https://www.readbyqxmd.com/read/27687918/does-laminar-airflow-make-a-difference-to-the-infection-rates-for-lower-limb-arthroplasty-a-study-using-the-national-joint-registry-and-local-surgical-site-infection-data-for-two-hospitals-with-and-without-laminar-airflow
#20
S Singh, S Reddy, Raj Shrivastva
This study compared the National Joint Registry for England, Wales, Northern Ireland and the Isle of Man (NJR) data for total hip replacements (THRs) and total knee replacements (TKRs) from Hospital A [with laminar airflow (LAF)] and Hospital B (without LAF). These hospitals were originally managed by two different trusts that subsequently merged. Consequently, the theatres in Hospital A have always had LAF and those in Hospital B had only conventional ventilation systems. As this merger happened before the establishment of the NJR, it puts us in a unique position, enabling direct comparison of the revision rates for infected hip and knee replacements between the two hospitals that follow similar infection protocols...
September 29, 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
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