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bone joint arthroplasty

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https://www.readbyqxmd.com/read/29330346/underestimation-of-staphylococcus-aureus-mrsa-and-mssa-carriage-associated-with-standard-culturing-techniques-one-third-of-carriers-missed
#1
S T J Tsang, M P McHugh, D Guerendiain, P J Gwynne, J Boyd, A H R W Simpson, T S Walsh, I F Laurenson, K E Templeton
OBJECTIVES: Nasal carriers of Staphylococcus (S.) aureus (MRSA and MSSA) have an increased risk for healthcare-associated infections. There are currently limited national screening policies for the detection of S. aureus despite the World Health Organization's recommendations. This study aimed to evaluate the diagnostic performance of molecular and culture techniques in S. aureus screening, determine the cause of any discrepancy between the diagnostic techniques, and model the potential effect of different diagnostic techniques on S...
January 2018: Bone & Joint Research
https://www.readbyqxmd.com/read/29330345/a-computational-simulation-study-to-determine-the-biomechanical-influence-of-posterior-condylar-offset-and-tibial-slope-in-cruciate-retaining-total-knee-arthroplasty
#2
K-T Kang, Y-G Koh, J Son, O-R Kwon, J-S Lee, S K Kwon
OBJECTIVES: Posterior condylar offset (PCO) and posterior tibial slope (PTS) are critical factors in total knee arthroplasty (TKA). A computational simulation was performed to evaluate the biomechanical effect of PCO and PTS on cruciate retaining TKA. METHODS: We generated a subject-specific computational model followed by the development of ± 1 mm, ± 2 mm and ± 3 mm PCO models in the posterior direction, and -3°, 0°, 3° and 6° PTS models with each of the PCO models...
January 2018: Bone & Joint Research
https://www.readbyqxmd.com/read/29310669/the-tibial-growth-plate-as-a-predictor-of-the-original-tibial-plateau-joint-line-as-a-reference-for-kinematically-aligned-total-knee-arthroplasty
#3
Katsuya Nagai, Yasuo Niki, Kengo Harato, Shu Kobayashi, Takeo Nagura, Takayuki Nakamura, Morio Matsumoto, Masaya Nakamura
BACKGROUND: Restoration of the natural joint line is a cornerstone for kinematically aligned total knee arthroplasty (TKA). The purpose of this study was to investigate the relative orientation of the tibial growth plate (GP) with respect to the tibial plateau (TP) for possible application in predicting natural joint line for knees with highly advanced osteoarthritis patient at the time of kinematically aligned TKA. METHODS: Images from computed tomography (CT) of 27 normal knees (9 males, 18 females; mean age, 31...
January 8, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29305458/hemiarthroplasty-proximal-femoral-endoprostheses-following-tumour-reconstruction-is-acetabular-replacement-necessary
#4
J D Stevenson, V S Kumar, G L Cribb, P Cool
AIMS: Dislocation rates are reportedly lower in patients requiring proximal femoral hemiarthroplasty than for patients undergoing hip arthroplasty for neoplasia. Without acetabular replacement, pain due to acetabular wear necessitating revision surgery has been described. We aimed to determine whether wear of the native acetabulum following hemiarthroplasty necessitates revision surgery with secondary replacement of the acetabulum after proximal femoral replacement (PFR) for tumour reconstruction...
January 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29305449/mid-term-results-of-lateral-unicondylar-mobile-bearing-knee-arthroplasty-a-multicentre-study-of-363-cases
#5
T Walker, N Zahn, T Bruckner, M R Streit, G Mohr, P R Aldinger, M Clarius, T Gotterbarm
AIMS: The aim of this independent multicentre study was to assess the mid-term results of mobile bearing unicondylar knee arthroplasty (UKA) for isolated lateral osteoarthritis of the knee joint. PATIENTS AND METHODS: We retrospectively evaluated 363 consecutive, lateral UKAs (346 patients) performed using the Oxford domed lateral prosthesis undertaken in three high-volume knee arthroplasty centres between 2006 and 2014. Mean age of the patients at surgery was 65 years (36 to 88) with a mean final follow-up of 37 months (12 to 93) RESULTS: A total of 36 (10...
January 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29305448/is-the-rate-of-revision-of-36-mm-metal-on-metal-total-hip-arthroplasties-with-pinnacle-acetabular-components-related-to-the-year-of-the-initial-operation-an-interrupted-time-series-analysis-using-data-from-the-national-joint-registry-for-england-and-wales
#6
G S Matharu, L P Hunt, D W Murray, P Howard, H G Pandit, A W Blom, B Bolland, A Judge
AIMS: The aim of this study was to determine whether the rates of revision for metal-on-metal (MoM) total hip arthroplasties (THAs) with Pinnacle components varied according to the year of the initial operation, and compare these with the rates of revision for other designs of MoM THA. PATIENTS AND METHODS: Data from the National Joint Registry for England and Wales included 36 mm MoM THAs with Pinnacle acetabular components which were undertaken between 2003 and 2012 with follow-up for at least five years (n = 10 776) and a control group of other MoM THAs (n = 13 817)...
January 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29305447/metal-on-metal-total-hip-arthroplasty-is-not-associated-with-cardiac-disease
#7
L H Goodnough, A Bala, J I Huddleston Iii, S B Goodman, W J Maloney, D F Amanatullah
AIMS: Many case reports and small studies have suggested that cobalt ions are a potential cause of cardiac complications, specifically cardiomyopathy, after metal-on-metal (MoM) total hip arthroplasty (THA). The impact of metal ions on the incidence of cardiac disease after MoM THA has not been evaluated in large studies. The aim of this study was to compare the rate of onset of new cardiac symptoms in patients who have undergone MoM THA with those who have undergone metal-on-polyethylene (MoP) THA...
January 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29305446/the-risk-of-cardiac-failure-following-metal-on-metal-hip-arthroplasty
#8
S A Sabah, J C Moon, S Jenkins-Jones, C Ll Morgan, C J Currie, J M Wilkinson, M Porter, G Captur, J Henckel, N Chaturvedi, P Kay, J A Skinner, A H Hart, C Manisty
AIMS: The aim of this study was to determine whether patients with metal-on-metal (MoM) arthroplasties of the hip have an increased risk of cardiac failure compared with those with alternative types of arthroplasties (non-MoM). PATIENTS AND METHODS: A linkage study between the National Joint Registry, Hospital Episodes Statistics and records of the Office for National Statistics on deaths was undertaken. Patients who underwent elective total hip arthroplasty between January 2003 and December 2014 with no past history of cardiac failure were included and stratified as having either a MoM (n = 53 529) or a non-MoM (n = 482 247) arthroplasty...
January 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29305445/outcomes-of-dual-mobility-components-in-total-hip-arthroplasty-a-systematic-review-of-the-literature
#9
REVIEW
B Darrith, P M Courtney, C J Della Valle
AIMS: Instability remains a challenging problem in both primary and revision total hip arthroplasty (THA). Dual mobility components confer increased stability, but there are concerns about the unique complications associated with these designs, as well as the long-term survivorship. MATERIALS AND METHODS: We performed a systematic review of all English language articles dealing with dual mobility THAs published between 2007 and 2016 in the MEDLINE and Embase electronic databases...
January 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29305444/follow-up-after-arthroplasty-of-the-hip-and-knee-are-we-over-servicing-or-under-caring
#10
REVIEW
T M Lovelock, N S Broughton
The number of arthroplasties of the hip and knee is predicted to increase rapidly during the next 20 years. Accompanying this is the dilemma of how to follow-up these patients appropriately. Current guidelines recommend long-term follow-up to identify patients with aseptic loosening, which can occur more than a decade postoperatively. The current guidelines and practices of orthopaedic surgeons vary widely. Existing models take up much clinical time and are expensive. Pilot studies using 'virtual' clinics and advanced-practice physiotherapists have shown promise in decreasing the time and costs for orthopaedic surgeons and patients...
January 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29305427/patient-specific-medial-unicompartmental-knee-arthroplasty-has-a-greater-protective-effect-on-articular-cartilage-in-the-lateral-compartment-a-finite-element-analysis
#11
K-T Kang, J Son, D-S Suh, S K Kwon, O-R Kwon, Y-G Koh
OBJECTIVES: Patient-specific (PS) implantation surgical technology has been introduced in recent years and a gradual increase in the associated number of surgical cases has been observed. PS technology uses a patient's own geometry in designing a medical device to provide minimal bone resection with improvement in the prosthetic bone coverage. However, whether PS unicompartmental knee arthroplasty (UKA) provides a better biomechanical effect than standard off-the-shelf prostheses for UKA has not yet been determined, and still remains controversial in both biomechanical and clinical fields...
January 2018: Bone & Joint Research
https://www.readbyqxmd.com/read/29305336/circulating-osteogentic-precursor-cells-in-non-hereditary-heterotopic-ossification
#12
REVIEW
Kevin P Egan, Gustavo Duque, Mary Ann Keenan, Robert J Pignolo
Non-hereditary heterotopic ossification (NHHO) may occur after musculoskeletal trauma, central nervous system (CNS) injury, or surgery. We previously described circulating osteogenic precursor (COP) cells as a bone marrow-derived type 1 collagen+CD45+subpopulation of mononuclear adherent cells that are able of producing extraskeletal ossification in a murine in vivo implantation assay. In the current study, we performed a tissue analysis of COP cells in NHHO secondary to defined conditions, including traumatic brain injury, spinal cord injury, cerebrovascular accident, trauma without neurologic injury, and joint arthroplasty...
January 2, 2018: Bone
https://www.readbyqxmd.com/read/29299499/measurement-of-posterior-tibial-slope-using-magnetic-resonance-imaging
#13
Elham Karimi, Mohsen Norouzian, Ali Birjandinejad, Reza Zandi, Hadi Makhmalbaf
Background: Posterior tibial slope (PTS) is an important factor in the knee joint biomechanics and one of the bone features, which affects knee joint stability. Posterior tibial slope has impact on flexion gap, knee joint stability and posterior femoral rollback that are related to wide range of knee motion. During high tibial osteotomy and total knee arthroplasty (TKA) surgery, proper retaining the mechanical and anatomical axis is important. The aim of this study was to evaluate the value of posterior tibial slope in medial and lateral compartments of tibial plateau and to assess the relationship among the slope with age, gender and other variables of tibial plateau surface...
November 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29299482/have-the-annual-trends-of-total-hip-arthroplasty-in-rheumatoid-arthritis-patients-decreased
#14
Kemjika O Onuoha, Max Solow, Jared M Newman, Nipun Sodhi, Robert Pivec, Anton Khlopas, Assem A Sultan, Morad Chughtai, Neil V Shah, Jaiben George, Michael A Mont
Background: Rheumatoid arthritis (RA) is characterized by chronic systemic and synovial inflammation, resulting in damage to both cartilage and bone. Medical treatment, which has increasingly relied upon disease modifying anti-rheumatic drugs (DMARDs), may fail to slow disease progression and limit joint damage, ultimately warranting surgical intervention. Up to 25% of RA patients will require lower extremity total joint arthroplasty. Though total hip arthroplasty (THA) is known to improve quality of life and functional measures, clarification is still required with respect to the impact of increased DMARD use on annual rates of THA...
December 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29299476/have-the-annual-trends-of-total-knee-arthroplasty-in-ankylosing-spondylitis-patients-decreased
#15
Roby Abraham, John J Kelly, Jared M Newman, Qais Naziri, Nipun Sodhi, Anton Khlopas, Jaiben George, Neil V Shah, Assem A Sultan, Morad Chughtai, John W Barrington, Carl B Paulino, Michael A Mont
Background: Ankylosing spondylitis (AS) is characterized by osteoproliferation-induced structural damage and spinal inflammation, which lead to spinal deformity and functional disability. Though AS commonly affects the axial skeleton and sacroiliac joints, up to 70% of patients have involvement of the knees and other joints. Despite pharmacological efforts, advancing joint involvement may ultimately require surgical intervention. Total knee arthroplasty (TKA) is effective in managing patients with AS, yet it remains unclear whether or not the annual rates of TKA have been affected...
December 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29297186/evaluation-of-the-prevalence-of-periodontal-disease-as-a-non-classical-risk-factor-in-the-group-of-patients-undergoing-hip-and-or-knee-arthroplasty
#16
Karolina Adamkiewicz, Anna E Płatek, Paweł Łęgosz, Maciej R Czerniuk, Paweł Małdyk, Filip M Szymański
BACKGROUND: Periodontal disease is a chronic disease, causing inflammatory process that affects various organs and is associated with an increased risk of many diseases including bone and cardiovascular disease. AIM: The aim of this study was to establish the prevalence of periodontal disease in continuous patients scheduled for hip or knee replacement surgery. METHODS: The study was a prospective, epidemiological analysis performed in consecutive patients scheduled for total joint (hip or knee) replacement surgery...
January 3, 2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29286528/the-role-of-three-phase-bone-scintigraphy-in-arthroplasty-of-hip-and-knee-joints-of-clean-up-workers-of-chornobyl-accident
#17
M M Tkachenko, P O Korol
OBJECTIVE: The objective of the work to determine the diagnostic role of the three phase bone scintigraphy (3 F BS) in the early prediction of paraendoprosthetic complications of the hip and knee joints of the participants in clean up workers of Chornobyl accident. MATERIAL AND METHODS: The 3 F BS method were investigated the radionuclide kinetic parameters of the inclusion and distribution of radiopharmaceuticals (RF) in damaged joints in the 75 male clean up workers...
December 2017: Problemy Radiat︠s︡iĭnoï Medyt︠s︡yny Ta Radiobiolohiï
https://www.readbyqxmd.com/read/29285147/expression-of-the-deubiquitinase-cylindromatosis-in-articular-cartilage-and-subchondral-bone-is-associated-with-the-severity-of-knee-osteoarthritis
#18
Liu Hong, Yu Shanjiang, Wang Qian, Li Chunguo, Zhou Fei, Yu Jinming, Gao Jiyou, Li Na, Li Yang, Du Feng
Cylindromatosis (CYLD) is a deubiquitinating enzyme that regulates multiple key signaling pathways involved in the pathophysiology of knee osteoarthritis (KOA). Previous studies have indicated that the expression of CYLD in the articular cartilage of patients with KOA is significantly higher than in healthy controls. However, limited data are available regarding the association between CYLD expression and the severity of KOA. The aim of the present study was to investigate the association between CYLD expression in joint tissues and the severity of KOA...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29273898/pseudo-patella-baja-a-minor-yet-frequent-complication-of-total-knee-arthroplasty
#19
Giulia Bugelli, Francesco Ascione, Niki Cazzella, Edoardo Franceschetti, Francesco Franceschi, Giacomo Dell'Osso, Eleonor Svantesson, Kristian Samuelsson, Stefano Giannotti
PURPOSE: One of the complications in total knee arthroplasty (TKA) is pseudo-patella baja (PPB). PPB is present when there is no shortening of the patellar tendon, but the joint line is elevated. The purpose of this study is to investigate the incidence of PPB after TKA and its clinical effects. METHODS: A case series of 158 patients undergoing TKA surgery between 1999 and 2012 at the 2nd Department of Orthopaedics and Traumatology, Pisa were retrospectively reviewed...
December 23, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29248483/dose-dependent-resorption-of-allograft-by-rhbmp-2-uncompensated-by-new-bone-formation-a-canine-study-with-implants-and-zoledronate
#20
Rasmus Cleemann, Joan E Bechtold, Mette Sorensen, Kjeld Soballe, Jorgen Baas
BACKGROUND: Impacted bone allograft is used to restore lost bone in total joint arthroplasties. Bone morphogenetic proteins (BMPs) can induce new bone formation to improve allograft incorporation, but they simultaneously invoke a seemingly dose-dependent allograft resorption mediated by osteoclasts. Bisphosphonates effectively inhibit osteoclast activity. Predicting allograft resorption when augmented with bone morphogenetic protein 2 (BMP-2), we intended to investigate whether a balanced bone metabolism was achievable within a range of BMP-2 doses with systemic zoledronate treatment...
November 16, 2017: Journal of Arthroplasty
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