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joint replacement surgery

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https://www.readbyqxmd.com/read/28342974/after-total-knee-replacement-younger-patients-demonstrate-superior-balance-control-compared-to-older-patients-when-recovering-from-a-forward-fall
#1
Brian D Street, William Gage
BACKGROUND: National joint replacement registries have reported a substantial growth in younger knee osteoarthritic patients (<55years old) undergoing total knee replacement, however this younger population is generally understudied. Importantly, studies examining experimentally controlled perturbation have shown age-related differences between younger and older healthy adults, whether similar age-related differences exist among total knee replacement patients is unknown. METHODS: A total of 59 participants, including 29 unilateral total knee replacement patients (six-months post-surgery) made up the four experimental groups: 1) younger patient (54...
March 16, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28337732/medicare-reimbursement-and-orthopedic-surgery-past-present-and-future
#2
REVIEW
R Carter Clement, Suneel B Bhat, Meredith E Clement, James C Krieg
PURPOSE OF REVIEW: This paper reviews the history and structure of Medicare reimbursement with a focus on aspects relevant to the field of orthopedic surgery. Namely, this includes Parts A and B, with particular attention paid to the origins of Diagnosis Related Groups (DRG) and the physician fee schedule, respectively. We then review newer policies affecting orthopedic surgeons. RECENT FINDINGS: Recent Medicare reforms relevant to our field include readmission penalties, the evolution of bundled payments including the mandatory Comprehensive Care for Joint Replacement (CJR) and Surgical Hip and Femur Fracture Treatment (SHFFT) programs, and the new mandatory Merit-based Incentive Payment System (MIPS) pay-for-performance program...
March 23, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28336032/evidence-appraisal-of-koh-bth-tan-jh-ramruttun-ak-wang-w-effect-of-storage-temperature-and-equilibration-time-on-polymethyl-methacrylate-pmma-bone-cement-polymerization-in-joint-replacement-surgery-j-orthop-surg-res-2015-10-1-178-doi-10-1186-s13018-015-0320
#3
https://www.readbyqxmd.com/read/28332761/a-uk-national-survey-of-care-pathways-and-support-offered-to-patients-receiving-revision-surgery-for-prosthetic-joint-infection-in-the-highest-volume-nhs-orthopaedic-centres
#4
Andrew J Moore, Michael R Whitehouse, Rachael Gooberman-Hill, Jason Heddington, Andrew D Beswick, Ashley W Blom, Tim J Peters
BACKGROUND: Deep prosthetic joint infection (PJI) is a devastating complication of joint replacement surgery. It is difficult to treat, and patients often require multiple major revision surgeries to eradicate the infection. Treatment can have negative and long-term impact on patients' quality of life. Understanding current service provision provides valuable information needed to design and evaluate support interventions for patients. AIM: This survey aimed to identify usual care pathways and support in UK National Health Service (NHS) orthopaedic centres for patients receiving revision surgery for PJI after hip or knee replacement...
March 23, 2017: Musculoskeletal Care
https://www.readbyqxmd.com/read/28321991/atomic-layer-deposition-of-a-silver-nanolayer-on-advanced-titanium-orthopedic-implants-inhibits-bacterial-colonization-and-supports-vascularized-de-novo-bone-ingrowth
#5
Aine Devlin-Mullin, Naomi M Todd, Zahra Golrokhi, Hua Geng, Moritz A Konerding, Nigel G Ternan, John A Hunt, Richard J Potter, Chris Sutcliffe, Eric Jones, Peter D Lee, Christopher A Mitchell
Joint replacement surgery is associated with significant morbidity and mortality following infection with either methicillin-resistant Staphylococcus aureus (MRSA) or Staphylococcus epidermidis. These organisms have strong biofilm-forming capability in deep wounds and on prosthetic surfaces, with 10(3) -10(4) microbes resulting in clinically significant infections. To inhibit biofilm formation, we developed 3D titanium structures using selective laser melting and then coated them with a silver nanolayer using atomic layer deposition...
March 21, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28317000/surgical-treatment-algorithms-for-post-burn-contractures
#6
REVIEW
Kenji Hayashida, Sadanori Akita
Burn contractures produce restrictions in motion and unacceptable aesthetic results, frequently with persistent wounds. Proper planning and tissue selection are essential to minimize donor site morbidity optimizing outcomes. The principle of burn reconstructive surgery requires that the defects after release should be replaced with donor tissues which have matching texture and color as well as enough pliability. Autologous skin grafting or flap surgeries meet these criteria to replace scar tissues and resurface the subsequent to post-released scar defects...
2017: Burns and trauma
https://www.readbyqxmd.com/read/28316309/high-resolution-ct-angiogram-for-lower-extremity-vein-mapping
#7
Mark P Wright, Matthew R Smeds, Lonnie Wright, Ahsan T Ali
High-resolution CT angiogram (CTA) has replaced traditional diagnostic angiography as the main preoperative imaging modality for vascular surgery patients. Although the use of CTA is increasing for arterial imaging, it has not been used routinely for vein mapping. The goal of this study was to evaluate the accuracy of CTA for venous anatomy and compare it to a standard venous duplex ultrasound (DUS). When the vein was used for bypass, the quality and size of the vein were evaluated in the operating room. As part of a preoperative workup before lower extremity revascularization, 16 patients underwent a CTA followed by a DUS...
March 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28302461/data-quality-in-institutional-arthroplasty-registries-description-of-a-model-of-validation-and-report-of-preliminary-results
#8
Maria P Bautista, Guillermo A Bonilla, Klaus W Mieth, Adolfo M Llinás, Fernanda Rodríguez, Laura L Cárdenas
BACKGROUND: Arthroplasty registries are a relevant source of information for research and quality improvement in patient care and its value depends on the quality of the recorded data. The purpose of this study is to describe a model of validation and present the findings of validation of an Institutional Arthroplasty Registry (IAR). METHODS: Information from 209 primary arthroplasties and revision surgeries of the hip, knee, and shoulder recorded in the IAR between March and September 2015 were analyzed in the following domains...
February 20, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28302132/long-term-results-and-comparison-of-the-three-different-high-tibial-osteotomy-and-fixation-techniques-in-medial-compartment-arthrosis
#9
Gökhan Polat, Halil İbrahim Balcı, Mehmet Fevzi Çakmak, Mehmet Demirel, Cengiz Şen, Mehmet Aşık
BACKGROUND: The purpose of this study is to report and analyze the long-term outcomes of the patients who underwent high tibial osteotomy (HTO) with three different techniques for the treatment of medial compartment arthrosis. METHODS: A total of 187 patients (195 knees) who underwent HTO between 1990 and 2010 were retrospectively evaluated. Eighty-eight knees, opening-wedge osteotomy with Puddu plate (group A); 51 knees, transverse osteotomy below the tubercle with external fixator (group B); and 29 knees, closing-wedge osteotomy with staple fixation (group C) were included in the study...
March 16, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28298194/patient-endorsement-of-the-outcome-measures-in-rheumatology-omeract-total-joint-replacement-tjr-clinical-trial-draft-core-domain-set
#10
Jasvinder A Singh, Michelle Dowsey, Peter F Choong
BACKGROUND: A patient- and surgeon-Delphi-derived Outcome Measures in Rheumatology (OMERACT) draft core domain set for total joint arthroplasty (TJR) trials was recently developed. Our objective was to obtain further patient stakeholder endorsement of draft core domain set for TJR clinical trials. METHODS: We surveyed two patient groups: (1) OMERACT patient partners; and (2) patients who had undergone hip or knee TJR. Patients received an introductory email with explanations about the core domain set and instructions to rate the core domains, i...
March 15, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28276651/realignment-surgery-for-malunited-ankle-fracture
#11
Chang-Jun Guo, Xing-Cheng Li, Mu Hu, Yang Xu, Xiang-Yang Xu
OBJECTIVE: To investigate the characteristics and the results of realignment surgery for the treatment of malunited ankle fracture. METHODS: Thirty-three patients with malunited fractures of the ankle who underwent reconstructive surgery at our hospital from January 2010 to January 2014 were reviewed. The tibial anterior surface angle (TAS), the tibiotalar tilt angle (TTA), the malleolar angle (MA), and the tibial lateral surface angle (TLS) were measured. Clinical assessment was performed with use of the American Orthopaedic Foot and Ankle Society (AOFAS) scale and visual analogue scale (VAS) scores, and the osteoarthritis stage was determined radiographically with the modified Takakura classification system...
March 9, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28269733/an-autoclavable-wireless-palpation-instrument-for-minimally-invasive-surgery
#12
Anish S Naidu, Abelardo Escoto, Omar Fahmy, Rajni V Patel, Michael D Naish
Minimally invasive surgery prevents surgeons from manually palpating organs to locate subsurface tumors and other structures. One solution is to use ultrasound; however, it is not always reliable. Various minimally invasive surgery instruments that provide tactile feedback have been proposed to augment ultrasound sensing for tumor localization; however, current designs have limitations such as cumbersome wiring, difficulty in manipulation, lack of sterilizability and high cost. This paper presents a novel, autoclavable, wireless, hand-held palpation instrument that uses a custom, low-cost, disposable tactile sensor to provide tactile and kinesthetic force feedback...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28267070/adherence-to-a-multimodal-analgesic-clinical-pathway-a-within-group-comparison-of-staged-bilateral-knee-arthroplasty-patients
#13
Rachel C Steckelberg, Natasha Funck, T Edward Kim, Tessa L Walters, Gregory Milo Lochbaum, Stavros G Memtsoudis, Nicholas J Giori, Pier F Indelli, Lorrie J Graham, Edward R Mariano
BACKGROUND AND OBJECTIVES: Multimodal analgesic clinical pathways for joint replacement patients often include perineural catheters, but long-term adherence to these pathways has not yet been investigated. Our primary aim was to determine adherence rate to a knee arthroplasty clinical pathway for patients undergoing staged bilateral procedures. METHODS: This study was performed at a hospital with a Perioperative Surgical Home program and knee arthroplasty clinical pathway using multimodal analgesia and adductor canal catheters...
March 6, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28260153/effects-of-different-methods-of-using-pneumatic-tourniquet-in-patients-undergoing-total-knee-arthroplasty-a-randomized-control-trial
#14
Y Zhang, D Li, P Liu, X Wang, M Li
BACKGROUND: The goal of this work was to investigate the effects of different methods of using pneumatic tourniquet on reducing blood loss in patients undergoing cemented total knee arthroplasty (TKA). METHODS: One hundred and fifty patients undergoing unilateral cemented TKA were randomly divided into three groups (50 patients per group). The tourniquet was used during the entire operation (Group A), used from the beginning of operation to the completion of joint replacement (Group B), and from the beginning of osteotomy to the completion of arthroplasty (Group C)...
March 4, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28259492/predictors-of-patient-reported-outcomes-of-total-joint-arthroplasty-in-a-developing-country
#15
Jennifer Bido, Ying H Yang, Jamie E Collins, Yan Dong, Daniel A Driscoll, Luis A Alcantara, Thomas S Thornhill, Jeffrey N Katz
BACKGROUND: In response to the growing burden of joint disease, developing countries are starting to create their own total joint arthroplasty (TJA) programs. To date, there has been limited research on predictors of TJA outcomes in a developing country. This investigation uses patient-reported outcome measures collected by a medical mission to assess predictors of TJA outcomes in the Dominican Republic. METHODS: Baseline and postoperative information from 156 of the mission's recipients of hip and knee TJA was used...
January 26, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28255205/the-autophagy-level-is-increased-in-the-synovial-tissues-of-patients-with-active-rheumatoid-arthritis-and-is-correlated-with-disease-severity
#16
Li Zhu, Huaizhou Wang, Yu Wu, Zhengwen He, Yanghua Qin, Qian Shen
Rheumatoid arthritis (RA) is a complex and not fully understood autoimmune disease associated with multijoint damage. The main effector cells, the synovial fibroblasts, are apoptosis resistant and hyperplastic which indicate that autophagy level is high in synovial tissue. Real-time PCR, immunocytochemistry, and western blotting were used in this paper to study the autophagy status of the synovial tissues obtained from RA and OA patients at the time of joint replacement surgery. We further evaluated the correlation between autophagy levels with RA activity-associated serum markers with SPSS...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28254733/bioengineered-temporomandibular-joint-disk-implants-study-protocol-for-a-two-phase-exploratory-randomized-preclinical-pilot-trial-in-18-black-merino-sheep-tempojims
#17
David Faustino Ângelo, Florencio Gil Monje, Raúl González-García, Christopher B Little, Lisete Mónico, Mário Pinho, Fábio Abade Santos, Belmira Carrapiço, Sandra Cavaco Gonçalves, Pedro Morouço, Nuno Alves, Carla Moura, Yadong Wang, Eric Jeffries, Jin Gao, Rita Sousa, Lia Lucas Neto, Daniel Caldeira, Francisco Salvado
BACKGROUND: Preclinical trials are essential to test efficacious options to substitute the temporomandibular joint (TMJ) disk. The contemporary absence of an ideal treatment for patients with severe TMJ disorders can be related to difficulties concerning the appropriate study design to conduct preclinical trials in the TMJ field. These difficulties can be associated with the use of heterogeneous animal models, the use of the contralateral TMJ as control, the absence of rigorous randomized controlled preclinical trials with blinded outcomes assessors, and difficulties involving multidisciplinary teams...
March 2, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28245680/-local-infiltration-analgesia-in-total-joint-replacement
#18
Tamás de Jonge, Szabolcs Görgényi, Gabriella Szabó, Miklós Bulcsú Torkos
INTRODUCTION: Total hip and knee replacment surgeries are characterized by severe postoperative pain. Local infiltration analgesia is proved to be very effective. However this method has not been widely used in Hungary. AIM: To evaluate the efficacy of the local infiltration analgesia with modified components in patients underwent total hip or knee replacement surgery. METHOD: Data of 99 consecutive patients underwent primary total hip or knee replacement surgery were evaluated prospectively...
March 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28245614/gene-expression-in-osteolysis-review-on-the-identification-of-altered-molecular-pathways-in-preclinical-and-clinical-studies
#19
REVIEW
Francesca Veronesi, Matilde Tschon, Milena Fini
Aseptic loosening (AL) due to osteolysis is the primary cause of joint prosthesis failure. Currently, a second surgery is still the only available treatment for AL, with its associated drawbacks. The present review aims at identifying genes whose expression is altered in osteolysis, and that could be the target of new pharmacological treatments, with the goal of replacing surgery. This review also aims at identifying the molecular pathways altered by different wear particles. We reviewed preclinical and clinical studies from 2010 to 2016, analyzing gene expression of tissues or cells affected by osteolysis...
February 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28244919/global-forum-the-burden-of-bone-and-joint-infections-a-growing-demand-for-more-resources
#20
Konstantinos N Malizos
The rate and severity of septic complications following joint replacement surgery and the incidence of posttraumatic infections are projected to increase at a faster pace because of a tendency to operate on high-risk patients, including older patients, patients with diabetes, and patients who are immunocompromised or have comorbidities. Musculoskeletal infections are devastating adverse events that may become life-threatening conditions. They create an additional burden on total health-care expenditures, and can lead to functional impairment, long-lasting disability, or even permanent handicap, with the inevitable social and economic burdens...
March 1, 2017: Journal of Bone and Joint Surgery. American Volume
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