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Hip arthroplasty

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https://www.readbyqxmd.com/read/29792786/imageless-navigation-total-hip-arthroplasty-an-evaluation-of-operative-time
#1
Epaminondas Markos Valsamis, David Ricketts, Adnan Hussain, Amir-Reza Jenabzadeh
INTRODUCTION: Imageless navigation has been successfully integrated in knee arthroplasty but its effectiveness in total hip arthroplasty (THA) has been debated. It has consistently been shown that navigation adds significant time and cost to the operation. Further, the relative success of traditional hip replacements has impeded the adoption of new techniques. METHODS: We compared the operative time between fifty total hip replacements with and without the use of imageless navigation by a single senior surgeon in a retrospective study...
2018: SICOT-J
https://www.readbyqxmd.com/read/29792279/can-intraoperative-measurement-of-bone-quality-help-in-decision-making-for-cementless-unicompartmental-knee-arthroplasty
#2
Johannes A Eckert, Sebastian Jaeger, Matthias C Klotz, Martin Schwarze, Rudi G Bitsch
BACKGROUND: In uncemented total hip arthroplasty (THA), low bone mineral density (BMD) is associated with aseptic loosening. BMD is usually assessed via dual-energy X-ray absorptiometry (DXA) or quantitative computed tomography, which takes time and exposes patients to radiation. Due to its low risk profile, intraoperative measurement of the trabecular stability might be a useful alternative to DXA. METHODS: In 24 human femora, BMD was analysed using DXA at the femoral necks and the knees...
May 20, 2018: Knee
https://www.readbyqxmd.com/read/29792206/is-the-cup-orientation-different-in-bilateral-total-hip-arthroplasty-with-right-handed-surgeons-using-posterolateral-approach
#3
Xinggui Song, Ming Ni, Heng Li, Xin Li, Xiang Li, Jun Fu, Jiying Chen
BACKGROUND: The impact of surgeon handedness on acetabular cup orientation in total hip arthroplasty (THA) is not well studied. The aim of our study is to investigate the difference of cup orientation in bilateral THA performed by right-handed surgeons using posterolateral approach and which cup could be fitter to Lewinneck's safe zone. METHODS: The study consisted of 498 patients that underwent bilateral THA by three right-handed surgeons in our hospital. Postoperative acetabular cup anteversion and abduction on an anteroposterior pelvic radiograph were measured by Orthoview software (Orthoview LLC, Jacksonville, Florida)...
May 23, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29792086/risk-of-further-surgery-on-the-same-or-opposite-side-and-mortality-after-primary-total-hip-arthroplasty-a-multi-state-analysis-of-133-654-patients-from-the-swedish-hip-arthroplasty-register
#4
Peter H J Cnudde, Szilard Nemes, Erik Bülow, A John Timperley, Sarah L Whitehouse, Johan Kärrholm, Ola Rolfson
Background and purpose - The hip-related timeline of patients following a total hip arthroplasty (THA) can vary. Ideally patients will live their life without need for further surgery; however, some will undergo replacement on the contralateral hip and/or reoperations. We analyzed the probability of mortality and further hip-related surgery on the same or contralateral hip. Patients and methods - We performed a multi-state survival analysis on a prospectively followed cohort of 133,654 Swedish patients undergoing an elective THA between 1999 and 2012...
May 23, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29791698/stryker-orthopaedic-modeling-and-analytics-soma-a-review
#5
Walter Schmidt, Sally LiArno, Anton Khlopas, Andreas Petersik, Michael A Mont
Due to the differences in bone morphology between demographics such as age, gender, body mass index, and ethnicity, the development of orthopaedic implants requires a large number of anatomical data from various patient populations. In an effort to assess these demographic variations, Stryker Orthopaedic Modeling and Analytics (SOMA) has been developed. SOMA is a suite of tools which utilizes a comprehensive database of computed tomography scans (CT-scans), plus associated three-dimensional (3D) bone models, allowing the user to assess population differences in bone morphology, bone density, and implant fit for the purposes of research and development...
June 1, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29790397/higher-cartilage-wear-in-unipolar-than-bipolar-hemiarthroplasties-of-the-hip-at-2-years-a-randomized-controlled-radiostereometric-study-in-19-fit-elderly-patients-with-femoral-neck-fractures
#6
Wender Figved, Stian Svenøy, Stephan M Röhrl, Jon Dahl, Lars Nordsletten, Frede Frihagen
Background and purpose - The use of unipolar hemi-arthroplasties for femoral neck fractures is increasing in some countries due to reports of higher reoperation rates in bipolar prostheses. On the other hand, it has been proposed that bipolar hemiarthroplasties have clinical advantages and less cartilage wear than unipolar hemiarthroplasties. We compared cartilage wear between bipolar and unipolar hemiarthroplasties using radiostereometric analyses (RSA), in patients aged 70 years or older. Patients and methods - 28 ambulatory, lucid patients were randomized to treatment with a unipolar or a bipolar hemiarthroplasty for an acute femoral neck fracture...
May 23, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29788969/psychosocial-predictors-for-outcome-after-total-joint-arthroplasty-a-prospective-comparison-of-hip-and-knee-arthroplasty
#7
Marion Lindner, Olaf Nosseir, Anett Keller-Pliessnig, Per Teigelack, Martin Teufel, Sefik Tagay
BACKGROUND: As findings regarding predictors for good outcome after total joint arthroplasty are highly inconsistent, aim of this study was to investigate the influence of the psychosocial variables sense of coherence and social support as well as mental distress on physical outcome after surgery. It should be investigated if different predictors are important in patients after total hip arthroplasty (THA) compared to patients after total knee arthroplasty (TKA). METHODS: In a prospective design, 44 patients undergoing THA and 61 patients undergoing TKA were examined presurgery and 6 and 12 weeks after surgery using WOMAC (disease-specific outcome), SF-36 (health-related quality of life), BSI (psychological distress), SOC-13 (sense of coherence), and F-SozU (social support)...
May 22, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29788284/military-service-and-decision-quality-in-the-management-of-knee-osteoarthritis
#8
Eric R Henderson, Alexander J Titus, Benjamin J Keeney, Philip P Goodney, Jon D Lurie, Said A Ibrahim
Background: Decision quality measures the degree to which care decisions are knowledge-based and value-aligned. Because military service emphasizes hierarchy, command, and mandates some healthcare decisions, military service may attenuate patient autonomy in healthcare decisions and lower decision quality. VA is the nation's largest provider of orthopedic care. We compared decision quality in a sample of VA and non-VA patients seeking care for knee osteoarthritis. Methods: Our study sample consisted of patients newly referred to our orthopedic clinic for the management of knee osteoarthritis...
May 18, 2018: Military Medicine
https://www.readbyqxmd.com/read/29783902/optimal-plate-fixation-of-distal-femoral-fractures-in-the-presence-of-a-well-fixed-cemented-hip-arthroplasty-femoral-stem
#9
Josh Kempthorne, David C Kieser, Cameron G Walker
INTRODUCTION: The requirement for lateral plate fixation in the presence of a hip arthroplasty stem is increasing, yet the optimal plate construct necessary to reduce inter-prosthetic strain and prevent subsequent fractures is unknown. Therefore, the purpose of this study was to determine the optimal position of a lateral femoral plate in relation to a femoral stem. METHODS: We used 4th Generation Composite Sawbones® , a collarless polished cemented femoral stem and a broad Peri-loc™ plate with varying overlap of the stem...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29783896/projections-of-hip-arthroplasty-in-oecd-countries-up-to-2050
#10
Christof Pabinger, Harold Lothaller, Nicole Portner, Alexander Geissler
OBJECTIVE: The study aims to estimate the future demand of hip arthroplasty for OECD countries and to compare the results with earlier studies. DESIGN: Based on data availability and validity 20 countries out of the OECD sample have been selected for projection analysis. Using historic data (1995-2012) and multiple linear regression technics a projection model was designed by an iterative process considering different explanatory variables such as health care expenditure, age groups, and projection time frames...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29783889/the-external-obturator-footprint-as-a-landmark-in-total-hip-arthroplasty-through-a-direct-anterior-approach-a-ct-based-analysis
#11
Hannes A Rüdiger, Benjamin Fritz, Franco M Impellizzeri, Michael Leunig, Christian W Pfirrmann, Reto Sutter
BACKGROUND: Anatomical landmarks for templating of total hip arthroplasty (THA) that are visible both during surgery and on radiographs are rare. If surgery is performed through a direct anterior approach the external obturator tendon (EO) is consistently visible. To use this point as a reference the exact position and dimensions of the footprint need to be known. AIM: To determine the location and dimension of the EO footprint on pelvic radiographs by correlating the EO anatomy in CT scans with conventional radiographs...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29783888/patient-positioning-and-cup-orientation-during-total-hip-arthroplasty-assessment-of-current-uk-practice
#12
Megan Rutherford, John D O'Connor, Janet C Hill, David E Beverland, Alex B Lennon, Nicholas J Dunne
INTRODUCTION: Acetabular cup orientation during total hip arthroplasty (THA) remains a challenge. This is influenced by patient positioning during surgery and the method used to orientate the acetabular cup. The aim of this study was to assess current UK practice for patient positioning and cup orientation, particularly with respect to patient supports and techniques used to achieve target version and inclination. METHODS: A literature review and pilot study were initially conducted to develop the questionnaire, which was completed by British Hip Society members ( n = 183)...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29781911/what-is-the-frequency-of-early-dissociation-of-bipolar-cups-and-what-factors-are-associated-with-dissociation
#13
Young-Kyun Lee, Chan Ho Park, Yong-Chan Ha, Kyung-Hoi Koo
BACKGROUND: Dissociation between a prosthetic cup and femoral head is a rare complication of bipolar hemiarthroplasty that usually occurs during closed reduction of a dislocated bipolar cup. The dissociation usually results in reoperation because closed reduction is challenging. To our knowledge, no study has reported on the frequency of bipolar cup-femoral head dissociation, and risk factors for dissociation are unknown. QUESTIONS/PURPOSES: The purposes of this study were (1) to evaluate the frequency of dissociation of prosthetic femoral heads from bipolar cups during manual reduction of a dislocated bipolar hemiarthroplasty; and (2) to explore in a preliminary fashion any prosthesis or patient factors that may be associated with dissociation...
May 17, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29781366/high-dose-glucocorticoid-before-hip-and-knee-arthroplasty-to-use-or-not-to-use-that-s-the-question
#14
Henrik Kehlet, Viktoria Linberg-Larsen
No abstract text is available yet for this article.
May 21, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29781291/predictive-accuracy-of-rsa-migration-thresholds-for-cemented-total-hip-arthroplasty-stem-designs
#15
Matthew G Teeter, Richard W McCalden, Xunhua Yuan, Steven J MacDonald, Douglas D Naudie
INTRODUCTION: Radiostereometric analysis (RSA) migration thresholds for cemented total hip stems have been established beyond which an unacceptably high risk of revision is likely to occur. These thresholds are subsidence >0.23 mm or >1.2 mm after 2 years. The purpose of this study was to retrospectively examine after long-term follow-up the predictive accuracy of the two thresholds. METHODS: Data from two previous prospective RSA trials with 2 year follow-up for which minimum 10 year survivorship data was available were used...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29781290/dual-mobility-bearings-for-patients-with-abductor-trochanteric-complex-%C3%A4-nsufficiency-dual-mobility-for-abductor-trochanteric-complex-%C3%A4-nsufficiency
#16
Vahit E Ozden, Goksel Dikmen, Burak Beksac, Remzi Tozun
INTRODUCTION: The purpose of this study was to summarise the performance of dual-mobility cup systems for revision total hip arthroplasty in patients with abductor-trochanteric complex deficiency. METHODS: We prospectively followed 17 patients (20 hips) with a mean age of 64.5 years (range 33-89 years) who underwent acetabular reconstruction with dual-mobility cups for aseptic loosening in 12 hips, infection treatment as second or single stage in 6 hips, and instability in 2 hips...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29781289/a-randomised-trial-comparing-spatio-temporal-gait-parameters-after-total-hip-arthroplasty-between-the-direct-anterior-and-direct-lateral-surgical-approaches
#17
Bryn O Zomar, Dianne Bryant, Susan Hunter, James L Howard, Edward M Vasarhelyi, Brent A Lanting
INTRODUCTION: Total hip arthroplasty (THA) is a successful procedure for relieving symptoms of severe osteoarthritis. Surgical approach is a key factor in early recovery and although controversial, little has been written about the direct anterior (DA) approach using objective early measures. METHODS: 78 participants were prospectively enrolled to undergo a THA through either a DA or direct lateral (DL) surgical approach. Outcome measures were collected preoperatively and at discharge from the hospital, and 2-, 6- and 12-weeks...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29781288/is-computerised-3d-templating-more-accurate-than-2d-templating-to-predict-size-of-components-in-primary-total-hip-arthroplasty
#18
Erik Schiffner, David Latz, Pascal Jungbluth, Jan P Grassmann, Stephan Tanner, Alfred Karbowski, Joachim Windolf, Johannes Schneppendahl
INTRODUCTION: The aim of this study was to compare the accuracy of preoperative templating in total hip arthroplasty (THA) using conventional 2-dimensional (2D) and computed tomography (CT)-based 3-dimensional (3D) measures. METHODS: One hundred and sixteen consecutive primary THAs were analysed. The preoperative diagnosis was primary osteoarthritis in all cases. The 2D templating and the 3D templating were performed by two different residents. All templating results were available for the orthopaedic surgeon performing the procedure...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29780620/day-case-surgery-for-total-hip-and-knee-replacement-how-safe-and-effective-is-it
#19
Stefan Lazic, Oliver Boughton, Catherine F Kellett, Deiary F Kader, Loïc Villet, Charles Rivière
Multimodal protocols for pain control, blood loss management and thromboprophylaxis have been shown to benefit patients by being more effective and as safe (fewer iatrogenic complications) as conventional protocols.Proper patient selection and education, multimodal protocols and a well-defined clinical pathway are all key for successful day-case arthroplasty.By potentially being more effective, cheaper than and as safe as inpatient arthroplasty, day-case arthroplasty might be beneficial for patients and healthcare systems...
April 2018: EFORT Open Reviews
https://www.readbyqxmd.com/read/29780248/incidence-of-symptomatic-venous-thromboembolism-in-2372-knee-and-hip-replacement-patients-after-discharge-data-from-a-thromboprophylaxis-registry-in-montreal-canada
#20
Andréa Senay, Milanne Trottier, Josée Delisle, Andreea Banica, Benoit Benoit, G Yves Laflamme, Michel Malo, Hai Nguyen, Pierre Ranger, Julio C Fernandes
Background: Low-molecular-weight heparin (LMWH) is a recommended anticoagulant for thromboprophylaxis after major orthopedic surgery. Dabigatran etexilate is an oral anticoagulant recognized as noninferior to LMWH. We aimed to assess the incidence of symptomatic venous thromboembolic events (VTEs) after discharge in patients who underwent joint replacement, using a hospital registry. Patients and methods: Patients who underwent total knee and hip arthroplasty between September 2011 and March 2015 were selected...
2018: Vascular Health and Risk Management
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