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https://www.readbyqxmd.com/read/29054726/a-comparison-of-walking-gait-following-mechanical-and-kinematic-alignment-in-total-knee-joint-replacement
#1
Peter J McNair, Mark G Boocock, Nicholas D Dominick, Richard J Kelly, Bill J Farrington, Simon W Young
BACKGROUND: Although previous studies have compared radiological, pain, and function scores in kinematically aligned (KA) and mechanically aligned (MA) total knee arthroplasty (TKA), no previous studies have undertaken a three-dimensional (3D) gait analysis in these groups. This study compared kinematic and kinetic variables recorded during level walking in patients at least 2 years post-surgery who underwent an MA or KA procedure. METHODS: Utilizing a 9-camera motion analysis system, gait analysis was undertaken on 29 patients (MA = 15, KA = 14)...
September 21, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29051879/the-destructive-power-of-circumstance-on-concurrent-poliomyelitis-and-osteomyelitis
#2
Delran Anandkumar, Ananthakrishnan Raghupathi, Ragai Gadelrab
INTRODUCTION: The current method in dealing with pediatric hip pathologies is to avoid joint replacement unless absolutely necessary. This decision is typically made on a scientific basis. However, this is not necessarily the correct approach in all cases as demonstrated in the following case report where social issues is an extremely important variable to be considered when deciding on surgical intervention. CASE REPORT: This case report is the first of its kind to highlight the pathology mentioned and the social determinants that were a causative agent in its development...
May 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29051868/minimally-invasive-joint-replacement-surgery-where-are-we-now
#3
EDITORIAL
Cheung Man Hong
No abstract text is available yet for this article.
May 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29049224/primary-stability-in-total-hip-replacement-a-biomechanical-investigation
#4
Paul Schmitz, Boyko Gueorguiev, Ivan Zderic, Christian Pfeifer, Michael Nerlich, Stephan Grechenig
BACKGROUND: In total hip replacement (THR), it is essential to achieve a primary stability to guarantee good long-term results. A novel locking screw hip (LSH)-stem, anchored to the medial cortex of the proximal femur by 5 monocortical locking screws, was developed to overcome the shortcomings of uncemented press-fit and cemented straight stems while simultaneously achieving primary stability. The aim of this study was to investigate the biomechanical competence of the LSH-stem in comparison to an uncemented press-fit stem...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29048688/is-endoprosthetic-replacement-of-the-proximal-femur-appropriate-in-the-comorbid-patient
#5
Arun Khajuria, Jonathon Ward, George Cooper, Jonathon Stevenson, Michael Parry, Lee Jeys
INTRODUCTION: Patients with failed hip arthroplasty requiring extensive femoral reconstruction often present with a multitude of comorbidities. Many treatment options limit initial mobilisation relying on bone graft incorporation. The use of endoprosthetic replacement (EPR), despite often being a "last resort", offers an expeditious solution with early mobilisation that is crucial in the comorbid individual. Many perceive that the surgical insult of EPR is associated with an increased mortality...
October 16, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29044336/the-impact-of-body-mass-index-bmi-variation-on-mortality-of-incident-elderly-patients-on-peritoneal-dialysis-a-joint-model-analysis
#6
Marcia Regina Gianotti Franco, Fernando Antonio Basile Colugnati, Abdul Rashid Qureshi, José Carolino Divino-Filho, Natália Maria Da Silva Fernandes
INTRODUCTION: Data on impact of high body mass index (BMI) on mortality of patients on peritoneal dialysis (PD), especially among elderly, are inconsistent. Objective: To evaluate impact of BMI on cohort of incident elderly PD patients over time. METHODS: Prospective multicenter cohort study (December / 2004-October/2007) with 674 patients. Socio-demographic and clinical data evaluated with patients followed until death, transfer to hemodialysis (HD), recovery of renal function, loss of follow-up or transplant...
July 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29040144/surgical-treatment-of-dentofacial-deformities-caused-by-juvenile-idiopathic-arthritis
#7
Patricia Stoor, Zlatan Hodzic, Sirpa Arte
The purpose of our retrospective study was to evaluate the results of orthognathic treatment, distraction osteogenesis, and/or prosthetic reconstruction of the temporomandibular joints in patients with juvenile idiopathic arthritis (JIA).Twelve patients with severely affected temporomandibular joints (TMJs) and reduced ramus height were treated with mandibular advancement with orthognathic surgery (11) and additional bilateral or unilateral mandibular ramus distraction (3) or additional bilateral or unilateral prosthetic reconstruction of the TMJ (3)...
October 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29040128/single-dose-preoperative-vitamin-d-supplementation-decreases-infection-in-a-mouse-model-of-periprosthetic-joint-infection
#8
Vishal Hegde, Erik M Dworsky, Alexandra I Stavrakis, Amanda H Loftin, Stephen D Zoller, Howard Y Park, Sherif Richman, Daniel Johansen, Yan Hu, Julie A Taylor, Christopher D Hamad, Rene F Chun, Weixian Xi, John S Adams, Nicholas M Bernthal
BACKGROUND: Despite recent advances, infection remains the most common etiology of arthroplasty failure. Recent work suggests that 25-hydroxyvitamin D (25D) deficiency correlates with the frequency of periprosthetic joint infection (PJI). We endeavored to examine whether 25D3 deficiency leads to increased bacterial burden in vivo in an established mouse model of PJI and, if so, whether this effect can be reversed by preoperative 25D3 supplementation. METHODS: Mice (lys-EGFP) possessing fluorescent neutrophils were fed a vitamin D3-sufficient (n = 20) or deficient (n = 40) diet for 6 weeks...
October 18, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29037443/a-comprehensive-assessment-of-the-musculoskeletal-system-the-cams-knee-data-set
#9
William R Taylor, Pascal Schütz, Georg Bergmann, Renate List, Barbara Postolka, Marco Hitz, Jörn Dymke, Philipp Damm, Georg Duda, Hans Gerber, Verena Schwachmeyer, Seyyed Hamed Hosseini Nasab, Adam Trepczynski, Ines Kutzner
Combined knowledge of the functional kinematics and kinetics of the human body is critical for understanding a wide range of biomechanical processes including musculoskeletal adaptation, injury mechanics, and orthopaedic treatment outcome, but also for validation of musculoskeletal models. Until now, however, no datasets that include internal loading conditions (kinetics), synchronized with advanced kinematic analyses in multiple subjects have been available. Our goal was to provide such datasets and thereby foster a new understanding of how in vivo knee joint movement and contact forces are interlinked - and thereby impact biomechanical interpretation of any new knee replacement design...
October 6, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29037237/the-role-of-national-registries-in-improving-patient-safety-for-hip-and-knee-replacements
#10
Anne Lübbeke, Alan J Silman, Daniel Prieto-Alhambra, Amanda I Adler, Christophe Barea, Andrew J Carr
BACKGROUND: The serious adverse events associated with metal on metal hip replacements have highlighted the importance of improving methods for monitoring surgical implants. The new European Union (EU) device regulation will enforce post-marketing surveillance based on registries among other surveillance tools. Europe has a common regulatory environment, a common market for medical devices, and extensive experience with joint replacement registries. In this context, we elaborate how joint replacement registries, while building on existing structure and data, can better ensure safety and balance risks and benefits...
October 16, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29033157/midterm-survivorship-after-revision-total-hip-arthroplasty-with-a-custom-triflange-acetabular-component
#11
Brian P Gladnick, Keith A Fehring, Susan M Odum, Michael J Christie, David K DeBoer, Thomas K Fehring
BACKGROUND: Custom triflange acetabular components are being increasingly used for the reconstruction of Paprosky type IIIB acetabular defects. However, midterm survivorship data are lacking. METHODS: We queried the prospective registries at 2 high-volume revision centers for patients who had undergone revision total hip arthroplasty using a custom triflange component between 2000 and 2011. We identified 73 patients with minimum 5-year follow-up. These patients' records were reviewed to determine incidence of revision or reoperation, clinical performance, and radiographic stability...
September 21, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29032353/rates-of-joint-replacement-surgery-in-new-zealand-1999-2015-a-comparison-of-rheumatoid-arthritis-and-osteoarthritis
#12
Lisa K Stamp, Janine Haslett, Peter Chapman, John O'Donnell, Rafi Raja, Alastair Rothwell, Christopher Frampton, Gary Hooper
OBJECTIVE: To determine rates of joint replacement for people with rheumatoid arthritis (RA) and osteoarthritis (OA) and to examine the characteristics of those receiving elbow replacements. METHODS: Data were extracted from the New Zealand Joint Registry from 1999 to 2015 and annual rates calculated. RESULTS: Rates of joint replacement increased over time for OA but not RA. Elbow replacement was the only procedure performed more commonly in RA...
October 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/29029967/-10-years-of-external-quality-assurance-in-dialysis-in-germany-results-and-future-prospects
#13
Dorothea Büchtemann, Stefan Meinhold, Peter Follert
BACKGROUND: In 2006, the Federal Joint Committee introduced a quality assurance programme for ambulatory dialysis treatment in Germany. Regarding the impact of chronic dialysis treatment on the quality of life of patients and on health care costs, quality assurance in dialysis is considered highly relevant. The directive on Quality Assurance in Dialysis (QSD-RL) established an external quality assurance programme based on the assessment of certain quality parameters combined with an internal quality management system based on benchmarking parameters in all dialysis practices and centres...
October 10, 2017: Zeitschrift Für Evidenz, Fortbildung und Qualität Im Gesundheitswesen
https://www.readbyqxmd.com/read/29029935/review-the-relationship-of-hemoglobin-a1c-to-postoperative-surgical-risk-with-an-emphasis-on-joint-replacement-surgery
#14
REVIEW
Lizette F Lopez, Peter D Reaven, Sherman M Harman
Patients with diabetes mellitus are known to have a high risk of postoperative complications, including infections, impaired wound healing, cardiovascular events, venous thromboembolism, and mortality. Because hyperglycemia has been thought to mediate this risk, there is a clinical propensity for improving glycemic control, as assessed by hemoglobin A1c (HbA1c) level, prior to proceeding with elective surgery, particularly joint replacement surgery. However, it is not established whether chronic poor glycemic control, indicated by elevated HbA1c levels, predicts increased risk of postoperative complications...
September 7, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/29025397/a-qualitative-study-of-patient-education-needs-for-hip-and-knee-replacement
#15
Deborah Kennedy, Amy Wainwright, Lucy Pereira, Susan Robarts, Patricia Dickson, Jennifer Christian, Fiona Webster
BACKGROUND: Quality health information is key to patient engagement, self-management and an enhanced healthcare experience. There is strong evidence to support involving patients and their families in the development and evaluation of health-related educational material. These factors were the impetus for our high volume joint replacement centre to undertake a qualitative study to elicit patient experiences to inform the development of effective strategies and education along the care continuum for hip and knee replacement...
October 12, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29024597/significant-chondrocyte-viability-is-present-in-acetabular-chondral-flaps-associated-with-femoroacetabular-impingement
#16
Vonda J Wright, Christopher Laurence McCrum, Hongshuai Li, Michael J Tranovich, Johnny Huard
BACKGROUND: Patients presenting with cam deformity of the femoral head and neck sustain repeated trauma to the articular cartilage of the superior acetabulum, with chondral delamination injuries found during hip arthroscopy. Two previous studies reveal conflicting chondrocyte viability data in these traumatic cartilage injuries. The full-thickness nature of flaps may suggest that chondrocytes residing in the cartilage flap matrix in the joint environment would remain viable despite shear trauma...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29020891/biologic-joint-repair-strategies-the-mizzou-biojoint-story
#17
Keiichi Kuroki, Aaron M Stoker, James P Stannard, Chantelle C Bozynski, Cristi R Cook, Ferris M Pfeiffer, James L Cook
Because articular cartilage has very limited healing potential, most symptomatic cartilage injuries eventually result in end-stage osteoarthritis and are treated with artificial joint replacement. Our interdisciplinary, comparative orthopedic research performed by a team of DVMs, MDs, engineers, and basic scientists has yielded marked progress toward effective biologic joint restoration strategies by bringing bench-side ideas to fruition in bedside applications in both canine and human patients. This mini-review summarizes the progress of biologic joint restoration strategies at our center...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/29020808/acute-hemophilic-hemarthrosis-is-local-cryotherapy-recommended
#18
E Carlos Rodriguez-Merchan, Hortensia de la Corte-Rodriguez
The management of acute hemophilic hemarthrosis (AHH) classically has consisted of factor replacement therapy and RICE (rest, ice, compression and elevation). However, there is still a controversy in the literature regarding the role of local cryotherapy (LC) in AHH. Areas covered: The aim of this article is to review the potential role of LC in AHH. Expert commentary: Some authors have reported that LC attenuates joint inflammation and has a positive influence on controlling articular swelling and temperature...
October 12, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/29016590/endoscopic-endonasal-transsphenoidal-approach-to-pituitary-adenoma-a-multi-disciplinary-approach
#19
Deepak Regmi, Amit Thapa, Bidur Kc, Bikram Shakya
BACKGROUND: The excellent visualization and minimally invasive approach employed in endoscopic endonasal procedures has now revolutionized the pituitary surgery, replacing the transnasal microscopic technique worldwide. However, it involves major shift in hand-eye co-ordination from static 3 dimensional images of microscope to 2 dimensional endoscopic images hence demands training and inter-disciplinary approach. Here we present our experiences in learning and developing a safe endonasal transsphenoidal endoscopic approach to resect pituitary adenomas...
September 8, 2017: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/28994021/radial-head-prosthesis-surgical-tips-and-tricks
#20
A Marinelli, E Guerra, A Ritali, M Cavallo, R Rotini
Radial head prostheses (RHP) have been developed to decrease the complications rate following a radial head resection surgery. The aim of the RHP is to replicate the physiological radiocapitellar tracking, reproducing the mechanical function of the native radial head: to stabilize the elbow and to shear the forces passing through the elbow along with the other stabilizers. The currently used RHP models try to achieve this target with three different prosthesis' strategies: (a) loose fit stem, (b) bipolar radial head or (c) anatomical radial head...
October 9, 2017: Musculoskeletal Surgery
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