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https://www.readbyqxmd.com/read/28340364/cervical-facet-force-analysis-after-disc-replacement-versus-fusion
#1
Vikas V Patel, Zachary R Wuthrich, Kirk C McGilvray, Matthew C Lafleur, Emily M Lindley, Derrick Sun, Christian M Puttlitz
BACKGROUND: Cervical total disc replacement was developed to preserve motion and reduce adjacent-level degeneration relative to fusion, yet concerns remain that total disc replacement will lead to altered facet joint loading and long-term facet joint arthrosis. This study is intended to evaluate changes in facet contact force, pressure and surface area at the treated and superior adjacent levels before and after discectomy, disc replacement, and fusion. METHODS: Ten fresh-frozen human cadaveric cervical spines were potted from C2 to C7 with pressure sensors placed into the facet joints of C3-C4 and C4-C5 via slits in the facet capsules...
March 18, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28339001/centers-for-medicare-medicaid-services-comprehensive-care-for-joint-replacement-the-present-and-future-for-orthopedic-surgeons
#2
Craig A Hogan, Melanie F Sandoval, Lauren M Uhler
The primary aim of this article is to describe the structure and challenges of Medicare and Medicaid reimbursement for a total hip or knee arthroplasty within the context of the Comprehensive Care for Joint Replacement model. The secondary aims are to identify potential challenges for reimbursement and solutions to overcome challenges for the orthopedic surgeon, and to describe and compare the current and projected reimbursement structures for total arthroplasty procedures. Final decisions on reimbursement for total arthroplasty as outlined by the Centers for Medicare & Medicaid Services are reviewed...
March 1, 2017: Orthopedics
https://www.readbyqxmd.com/read/28337732/medicare-reimbursement-and-orthopedic-surgery-past-present-and-future
#3
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/28337536/functional-and-patient-reported-outcomes-of-the-swanson-metacarpo-phalangeal-arthroplasty-in-the-rheumatoid-hand
#4
Firas K Elherik, Sean Dolan, John Antrum, Frank Unglaub, Colin R Howie, Steffen J Breusch
INTRODUCTION: Replacement of the metacarpo-phalangeal joints (MCPJ) with silastic Swanson's implants can help decrease pain, stiffness and allow for improved function in rheumatoid arthritis (RA). There is a lack of patient reported outcome measure (PROM) studies assessing the efficacy of this procedure in RA. The aim of this study was to report any change in function, pain, stiffness and satisfaction following the Swanson MCPJ replacement using patient reported outcomes in a rheumatoid population...
March 24, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28336915/a-novel-method-of-evaluating-knee-joint-stability-of-patients-with-knee-osteoarthritis-multiscale-entropy-analysis-with-a-knee-aiming-task
#5
Diange Zhou, Shijie Zhang, Hui Zhang, Long Jiang, Jue Zhang, Jing Fang
Deteriorating knee stability is a local risk factor that reflects the occurrence and aggregative of osteoarthritis (OA). Despite the many biomechanics-based methods for assessing the structural stability of knee joints in clinics, these methods have many limitations. The stability of the knee joint relies on not only biomechanical factors, but also proprioception and the central nervous system. In this study, we attempt to depict the stability of knee joint from a holistic viewpoint, and a novel index of knee joint stability (IKJS) was thus extracted...
March 23, 2017: Scientific Reports
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
#6
https://www.readbyqxmd.com/read/28332780/differentiation-of-patented-crystalline-glucosamine-sulfate-from-other-glucosamine-preparations-will-optimize-osteoarthritis-treatment
#7
REVIEW
Sukit Saengnipanthkul, Saranatra Waikakul, Sattaya Rojanasthien, Kitti Totemchokchyakarn, Attarit Srinkapaibulaya, Tai Cheh Chin, Nguyen Mai Hong, Olivier Bruyère, Cyrus Cooper, Jean-Yves Reginster, Myat Lwin
Symptomatic slow-acting drugs for osteoarthritis (SYSADOAs) are recommended for the medium- to long-term management of knee osteoarthritis (OA) due to their abilities to control pain, improve function and delay joint structural changes. Among SYSADOAs, evidence is greatest for the patented crystalline glucosamine sulfate (pCGS) formulation (Mylan). Glucosamine is widely available as glucosamine sulfate (GS) and glucosamine hydrochloride (GH) preparations that vary substantially in molecular form, pharmaceutical formulation and dose regimen...
March 23, 2017: International Journal of Rheumatic Diseases
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
#8
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/28332445/dynamic-virtual-simulation-of-the-occurrence-and-severity-of-edge-loading-in-hip-replacements-associated-with-variation-in-the-rotational-and-translational-surgical-position
#9
Joanna Leng, Mazen Al-Hajjar, Ruth Wilcox, Alison Jones, David Barton, John Fisher
Variation in the surgical positioning of total hip replacement can result in edge loading of the femoral head on the rim of the acetabular cup. Previous work has reported the effect of edge loading on the wear of hip replacement bearings with a fixed level of dynamic biomechanical hip separation. Variations in both rotational and translational surgical positioning of the hip joint replacement combine to influence both the biomechanics and the tribology including the severity of edge loading, the amount of dynamic separation, the force acting on the rim of the cup and the resultant wear and torque acting on the cup...
April 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28330716/the-value-of-power-doppler-ultrasound-in-patients-with-rheumatoid-arthritis-in-clinical-remission-reclassifying-disease-activity
#10
Facundo Vergara, Santiago Ruta, Javier Rosa, Josefina Marín, Ricardo García-Mónaco, Enrique R Soriano
OBJECTIVES: The aim of the present study was to describe the ultrasound (US) findings in patients with rheumatoid arthritis (RA) in clinical remission, and to evaluate the ability of power Doppler (PD) US to reclassify disease activity in these patients. MATERIAL AND METHODS: We included consecutive patients with RA according to 2010 American College of Rheumatology/European League Against Rheumatism criteria, who were in clinical remission by the Disease Activity Score (DAS28<2...
March 18, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/28330577/-custom-made-implant-for-complex-facial-reconstruction-a-case-of-total-replacement-of-temporo-mandibular-joint-zygomatic-arch-and-malar-bone
#11
D Guillier, V Moris, L-A See, M Girodon, B-L Wajszczak, N Zwetyenga
INTRODUCTION: Total prosthetic replacement of the temporo-mandibular joint (TMJ) has become a common procedure, but it is usually limited to the TMJ itself. We report about one case of complex prosthetic joint reconstruction extending to the neighbouring bony structures. CASE: A 57-year-old patient, operated several times for a cranio-facial fibrous dysplasia, presented with a recurring TMJ ankylosis and a complexe latero-facial bone loss on the right side. We performed a reconstruction procedure including the TMJ, the zygomatic arch and the malar bone by mean of custom made composite prosthesis (chrome-cobalt-molybdenum-titanium and polyethylene)...
February 2017: J Stomatol Oral Maxillofac Surg
https://www.readbyqxmd.com/read/28330380/rehabilitation-after-total-joint-replacement-a-scoping-study
#12
Deborah L Snell, Julia Hipango, K Anne Sinnott, Jennifer A Dunn, Alastair Rothwell, C Jean Hsieh, Gerben DeJong, Gary Hooper
PURPOSE: The evidence supporting rehabilitation after joint replacement, while vast, is of variable quality making it difficult for clinicians to apply the best evidence to their practice. We aimed to map key issues for rehabilitation following joint replacement, highlighting potential avenues for new research. MATERIALS AND METHODS: We conducted a scoping study including research published between January 2013 and December 2016, evaluating effectiveness of rehabilitation following hip and knee total joint replacement...
March 23, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28328832/clinico-radiological-diagnosis-and-grading-of-rapidly-progressive-osteoarthritis-of-the-hip
#13
Ancuţa Zazgyva, Simona Gurzu, István Gergely, Ioan Jung, Ciprian O Roman, Tudor S Pop
Due to the current lack of standard definitions for rapidly progressive osteoarthritis of the hip (RPOH) in the literature, this observational study aimed to describe new diagnostic criteria and a grading system for the disease.From a consecutive series of patients undergoing total hip replacement, 2 groups were selected: 1 with RPOH and 1 with primary hip osteoarthritis (POH), and their clinical, paraclinical, and demographic data were compared. The newly proposed clinico-radiological diagnostic criteria are based on characteristics of pain, joint mobility, and radiological assessment...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28326413/antibiotic-prophylaxis-for-dental-treatment-after-prosthetic-joint-replacement-exploring-the-orthopaedic-surgeon-s-opinion
#14
Clare M McNally, Renuka Visvanathan, Sharon Liberali, Robert J Adams
BACKGROUND: Antibiotic prophylaxis before dental treatment is routinely recommended by orthopaedic surgeons to prevent prosthetic joint infection (PJI). This recommendation is at odds with current guidelines. METHODS: A postal survey of 9 checkbox or short-answer questions was completed by 633 orthopaedic surgeons. RESULTS: The majority of respondents (n = 186 of 260, 72%) believe that antibiotic prophylaxis is required indefinitely for dental treatment...
September 2016: Arthroplasty Today
https://www.readbyqxmd.com/read/28326404/comparing-contemporary-revision-burden-among-hip-and-knee-joint-replacement-registries
#15
Brian J McGrory, Caryn D Etkin, David G Lewallen
BACKGROUND: Hip and knee arthroplasties are common and successful procedures, however, success and durability are not guaranteed. The revision burden, defined as the ratio of implant revisions to the total number of arthroplasties in a specific period, is a measure of the steady state of arthroplasty success in a given registry. This study examines the hypothesis that revision burden would be similar among contemporary joint replacement registries and improving over time compared with historic controls...
June 2016: Arthroplasty Today
https://www.readbyqxmd.com/read/28326396/the-american-joint-replacement-registry-and-arthroplasty-today
#16
EDITORIAL
Bryan D Springer, Caryn D Etkin
No abstract text is available yet for this article.
June 2016: Arthroplasty Today
https://www.readbyqxmd.com/read/28325423/stage%C3%A2-iv-kienb%C3%A3-ck-s-disease-proximal-row-carpectomy-and-application-of-rcpi-implant
#17
A Marcuzzi, F Colantonio, G Petrella, H Ozben, A Russomando
Kienböck disease is an aseptic osteonecrosis of the lunate, which gradually leads to total carpal collapse. Lichtman's classification relates radiographic evidence of wrist damage to four different stages and supports surgical decision-making. This study pertains to six patients (2 males and 4 females) affected by stage IV Kienböck's disease who underwent proximal row carpectomy and received an RCPI implant. The clinical outcomes consisted of wrist range of motion (ROM), pain on a VAS scale (0-10), the DASH score and the patient's level of satisfaction...
April 2017: Hand Surgery and Rehabilitation
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
#18
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/28320058/regional-differences-between-perisynovial-and-infrapatellar-adipose-tissue-depots-and-their-response-to-class-ii-and-iii-obesity-in-patients-with-oa
#19
Natalia S Harasymowicz, Nick D Clement, Asim Azfer, Richard Burnett, Donald M Salter, A Hamish W R Simpson
OBJECTIVE: Obesity is associated with an increased risk of developing Osteoarthritis (OA), which is postulated to be secondary to inflammation from adipose tissue (AT). There are peri-articular adipose depots in synovial joints, the association of this tissue with OA has not been extensively explored. The aim of this study was to investigate differences in local AT depots in knees with OA and changes related to class II and III obesity. METHODS: Synovium and the infrapatellar fat pad (IPFP) were collected during total knee replacement from 69 patients with end-stage OA...
March 20, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28317000/surgical-treatment-algorithms-for-post-burn-contractures
#20
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
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