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https://www.readbyqxmd.com/read/28436379/economic-analysis-of-4221-revisions-due-to-periprosthetic-joint-infection-in-poland
#1
Ireneusz Babiak, Piotr Pędzisz, Jakub Janowicz, Mateusz Kulig, Paweł Małdyk
BACKGROUND: Periprosthetic joint infection (PJI) is one of the most severe complications of total hip (THA) and total knee (TKA) arthroplasty. The aim of the study is to determine the number and type of hip and knee prosthesis revisions in Poland performed due to infection and reimbursement of the cost of septic revisions and to compare the costs of septic and aseptic revisions in Poland and other countries. MATERIAL AND METHODS: The data published for the period 2009-2013 by the National Health Fund (NHF) were analysed and the average cost of septic and aseptic revisions was calculated...
January 26, 2017: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28435566/functional-outcome-of-bipolar-prosthesis-versus-total-hip-replacement-in-the-treatment-of-femoral-neck-fracture-in-elderly-patients
#2
R Shukla, M Singh, R K Jain, P Mahajan, R Kumar
INTRODUCTION: The present study was performed to compare cemented total hip replacement (THR) with cemented bipolar prosthesis in the treatment of displaced fracture neck of femur in elderly patients. MATERIALS AND METHODS: This prospective study included 47 patients of greater than 60 years of age and having fracture of neck of femur, out of which 25 patients were managed by cemented bipolar prosthesis and remaining 22 were managed by cemented THR between June 2011 and June 2013...
March 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28416928/comparison-of-anesthetic-administration-according-to-method-of-hip-surgery
#3
Aysin Ersoy Esenyel, Cem Zeki Esenyel, Zekeriya Ervatan, Nuri Yakar, Mensure Cakirgoz, Ismail Kalkar, Metin Seyran
OBJECTIVE: The aim of this study is to compare total hip prosthesis (THP), partial hip prosthesis (PHP), and proximal femoral nail (PFN) patients in terms of the chosen anesthetic method. METHODS: A total of 850 patients who underwent hip surgery were divided into 3 groups according to the operation type: PHP (n=281), PFN (n=393), and THP (n=176). The type of anesthesia administered, interventions during anesthesia, and complications were retrospectively evaluated...
February 2017: Eurasian Journal of Medicine
https://www.readbyqxmd.com/read/28416825/-comparison-of-efficacy-and-safety-between-the-anterior-and-the-posterior-approaches-to-total-hip-arthroplasty
#4
Y J Zhang, J Li, K Qi, C C Xue, W D Xu
OBJECTIVE: To compare the efficacy and safety between direct anterior approach (DAA) and posterior approach (PA) in total hip arthroplasty. METHODS: This study evaluated postoperative results of 92 consecutive total hip arthroplasties performed by a single surgeon; 44 from the DAA, and 48 from PA. The age, body mass index, operation time, blood loss, hospital stay, positioning of the artificial hip, postoperative Harris score and postoperative complications were recorded and analyzed...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28416824/-gait-analysis-at-the-early-stage-after-direct-anterior-approach-in-total-hip-arthroplasty
#5
H Y Wang, P D Kang, Y Nie, H Y Zhao, Z Y Yang, F X Pei
OBJECTIVE: To evaluate the result of operation and gait analysis at the early stage after direct anterior approach (DAA) in total hip arthroplasty (THA). METHODS: In this study, 20 patients who suffered from necrosis of femoral head or developmental dysplasia of the hip were scheduled to undergo THA. The basic information and visual analogue scale (VAS) score, Harris score before and after surgery were recorded. All of the patients finished the gait analysis before the surgery and 6 weeks and 12 weeks after the surgery, the data were compared with those of normal adult people...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28411966/ultrasound-screening-for-adverse-local-tissue-reaction-after-hip-arthroplasty
#6
David J Robinson, Steven Lee, Paul Marks, Michal E Schneider
Early detection of adverse local tissue reaction (ALTR) to prosthetic hip wear debris is vital to improve the success of revision surgery. Magnetic resonance imaging with metal artefact reduction sequencing (MARS MRI) is considered the modality of choice to provide cross-sectional imaging of the soft tissues. The areas adjacent to the prosthesis are, however, not readily imaged using these protocols. Ultrasound has also been recommended as an imaging modality in the follow-up of hip replacement surgery. We decided to characterise the typical ultrasound findings in a group of patients undergoing routine biennial review of arthroplastic hips with particular reference to the hip capsule, femoral neck and iliopsoas bursa and tendon adjacent to the implant...
April 12, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28409131/hip-disarticulation-case-series-analysis-and-literature-review
#7
Diogo Lino Moura, António Garruço
OBJECTIVE: To present a retrospective study of 16 patients submitted to hip disarticulation. METHODS: During the period of 16 years, 16 patients who underwent hip disarticulation were identified. All of them were studied based on clinical records regarding the gender, age at surgery, disarticulation cause, postoperative complications, mortality rates and functional status after hip disarticulation. RESULTS: Hip disarticulation was performed electively in most cases and urgently in only three cases...
March 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28399722/safety-and-function-of-a-prototype-microprocessor-controlled-knee-prosthesis-for-low-active-transfemoral-amputees-switching-from-a-mechanic-knee-prosthesis-a-pilot-study
#8
Timothy Hasenoehrl, Thomas Schmalz, Reinhard Windhager, Stephan Domayer, Sara Dana, Clemens Ambrozy, Stefano Palma, Richard Crevenna
PURPOSE: Aim of this pilot study was to assess safety and functioning of a microprocessor-controlled knee prosthesis (MPK) after a short familiarization time and no structured physical therapy. MATERIALS AND METHODS: Five elderly, low-active transfemoral amputees who were fitted with a standard non-microprocessor controlled knee prosthesis (NMPK) performed a baseline measurement consisting of a 3 D gait analysis, functional tests and questionnaires. The first follow-up consisted of the same test procedure and was performed with the MPK after 4 to 6 weeks of familiarization...
April 11, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28390886/epidemiology-and-antibiotic-resistance-of-late-prosthetic-knee-and-hip-infections
#9
Lorenzo Drago, Elena De Vecchi, Monica Bortolin, Luigi Zagra, Carlo L Romanò, Laura Cappelletti
BACKGROUND: Prosthetic joint infections (PJI) are still a major complication of hip and knee arthroplasties. Identification of the causative pathogens and knowledge of their antibiotic susceptibilities are essential for the management of these infections. The main purpose of the study was to identify and compare the causative bacteria of prosthetic knee and hip joint infections in a reference Italian orthopedic center and to characterize antibiotic resistance profiles of bacteria involved...
March 15, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28390287/influence-of-the-fixation-region-of-a-press-fit-hip-endoprosthesis-on-the-stress-strain-state-of-the-bone-implant-system
#10
Ievgen Levadnyi, Jan Awrejcewicz, Márcio Fagundes Goethel, Alexander Loskutov
Although significant progress has been made in the development of total hip replacement, behaviour of the femoral component of an endoprosthesis in relation to the type of its fixation in the bone is still not fully understood. In this paper, behaviour of the femoral bone and the stem prosthesis is studied taking into account different types of prosthesis fixation in the medullary canal of the femur under the action of functional loads. For an analysis, a three-dimensional model of a femur has been developed based on the results of a computed tomography...
April 2, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28386028/evaluation-of-variables-influencing-success-and-complication-rates-in-canine-total-hip-replacement-results-from-the-british-veterinary-orthopaedic-association-canine-hip-registry-collation-of-data-2010-2012
#11
Elisabeth R Henderson, Andrew Wills, Andrew M Torrington, Andy P Moores, David Thomson, Gareth Arthurs, Gordon Brown, Hamish R Denny, Harry W Scott, Ian MacQueen, James Dunne, Jeremy Onyett, John D Walker, John Prior, Martin R Owen, Neil Burton, Richard Whitelock, Sarah Girling, Shane Morrison, Simon Gilbert, Sorrel J Langley-Hobbs, Toby J Gemmill, Christoph K Störk, Steve Bright, Eithne Comerford, Rob Pettitt, Nick Macdonald, John F Innes
The objective of this study was to assess the variables associated with complications of total hip replacement (THR) and report owner-assessed outcomes. Entries into the British Veterinary Orthopaedic Association-Canine Hip Registry (BVOA-CHR) between September 2011 and December 2012 were reviewed separately and in conjunction with previous data (January 2010-August 2011). An outcomes assessment questionnaire was used to collect data from owners. Incidences of surgeon-reported and owner-reported complications were 8...
April 6, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28384844/morphometry-of-proximal-femur-in-indian-population
#12
Minakshi Verma, Sheetal Joshi, Anita Tuli, Shashi Raheja, Priyanka Jain, Priyanka Srivastava
INTRODUCTION: Total hip arthroplasty is a commonly performed surgery now-a-day. There are regional and racial variations in the stature of the population worldwide. So there is always need of population specific data for making best fit prosthesis. AIM: The present study was done to measure the parameters of proximal femur and to analyse their correlation by using standard statistical analysis. MATERIALS AND METHODS: Ninety one dry bones (44 left and 47 right) were used...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28378001/adverse-reaction-to-metal-debris-with-concomitant-incidental-crystalline-arthropathy-in-hip-arthroplasty
#13
Edward J Testa, Brian J McGrory
Adverse reaction to metal debris (ARMD) is a known cause of failed metal in hip arthroplasty. Diagnosis of this type of prosthesis failure may be difficult, and the hallmark is an abnormally elevated serum cobalt level. Concomitant diagnoses may also be present, such as infection, instability, and loosening, and this may confuse interpretation of abnormal laboratories. We present here, for the first time, 2 patients with ARMD and crystalline arthropathy. In each case, the patient chose surgery for ARMD, with resolution of symptoms and no recurrence of the crystalline arthropathy...
March 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/28371783/monocular-vision-and-imu-based-system-for-prosthesis-pose-estimation-during-total-hip-replacement-surgery
#14
Shaojie Su, Yixin Zhou, Zhihua Wang, Hong Chen
The average age of population increases worldwide, so does the number of total hip replacement surgeries. Total hip replacement, however, often involves a risk of dislocation and prosthetic impingement. To minimize the risk after surgery, we propose an instrumented hip prosthesis that estimates the relative pose between prostheses intraoperatively and ensures the placement of prostheses within a safe zone. We create a model of the hip prosthesis as a ball and socket joint, which has four degrees of freedom (DOFs), including 3-DOF rotation and 1-DOF translation...
March 30, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28365850/acute-bone-changes-after-lower-limb-amputation-resulting-from-traumatic-injury
#15
D A Bemben, V D Sherk, W J J Ertl, M G Bemben
Bone health is critical for lower limb amputees, affecting their ability to use a prosthesis and their risk of osteoporosis. We found large losses in hip bone mineral density (BMD) and in amputated bone strength in the first year of prosthesis use, suggesting a need for load bearing interventions early post-amputation. INTRODUCTION: Large deficits in hip areal BMD (aBMD) and residual limb volumetric BMD (vBMD) occur after lower limb amputation; however, the time course of these bone quality changes is unknown...
April 1, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28348892/minimizing-stress-shielding-and-cement-damage-in-cemented-femoral-component-of-a-hip-prosthesis-through-computational-design-optimization
#16
Abdellah Ait Moussa, Justin Fischer, Rohan Yadav, Morshed Khandaker
The average life expectancy of many people undergoing total hip replacement (THR) exceeds twenty-five years and the demand for implants that increase the load-bearing capability of the bone without affecting the short- or long-term stability of the prosthesis is high. Mechanical failure owing to cement damage and stress shielding of the bone are the main factors affecting the long-term survival of cemented hip prostheses and implant design must realistically adjust to balance between these two conflicting effects...
2017: Advances in Orthopedics
https://www.readbyqxmd.com/read/28341264/total-hip-arthroplasty-survival-in-femoral-head-avascular-necrosis-versus-primary-hip-osteoarthritis-case-control-study-with-a-mean-10-year-follow-up-after-anatomical-cementless-metal-on-metal-28-mm-replacement
#17
D Ancelin, N Reina, E Cavaignac, S Delclaux, P Chiron
BACKGROUND: Total hip arthroplasty is the most widely used procedure to treat avascular necrosis (AVN) of the femoral head. Few studies have compared the outcomes of THA in femoral head AVN and primary hip osteoarthritis. Therefore we performed a case-control study to compare THA for femoral head AVN vs. primary hip osteoarthritis in terms of: (1) prosthesis survival, (2) complication rates, (3) functional outcomes and radiographic outcomes, (4) and to determine whether specific risk factors for THA failure exist in femoral head AVN...
December 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28337656/what-factors-are-associated-with-femoral-component-internal-rotation-in-tka-using-the-gap-balancing-technique
#18
Seung-Yup Lee, Hong-Chul Lim, Ki-Mo Jang, Ji-Hoon Bae
BACKGROUND: When using the gap-balancing technique for TKA, excessive medial release and varus proximal tibial resection can be associated with internal rotation of the femoral component. Previous studies have evaluated the causes of femoral component rotational alignment with a separate factor analysis using unadjusted statistical methods, which might result in treatment effects being attributed to confounding variables. QUESTIONS/PURPOSES: (1) What pre- and intraoperative factors are associated with internal rotation of the femoral component in TKA using the gap balancing technique? (2) To what degree does femoral component rotation as defined by the navigation system differ from rotation as measured by postoperative CT? METHODS: Three hundred seventy-seven knees that underwent computer-assisted primary TKA attributable to degenerative osteoarthritis with varus or mild valgus alignment in which medial soft tissue release was performed, and those with preoperative radiographs including preoperative CT between October 2007 and June 2014 were included in the study...
March 23, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28336947/an-ideal-dielectric-coat-to-avoid-prosthesis-rf-artefacts-in-magnetic-resonance-imaging
#19
U Zanovello, L Matekovits, L Zilberti
The number of people submitted to total hip or knee arthroplasty increased in the last years and it is likely to grow further. Hence, the importance of a proper investigation tool that allows to determine and recognize the potential presence of perioperative and/or postoperative diseases becomes clear. Although the Magnetic Resonance Imaging (MRI) technique demonstrated several advantages over the other common tomography tools, it suffers from the arise of image artefacts if it is performed in presence of metallic prostheses...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332156/the-pathology-of-failed-mckee-farrar-implants-correlation-with-modern-metal-on-metal-implant-failure
#20
Mitsuru Munemoto, George Grammatopoulos, Yasuhito Tanaka, Max Gibbons, Nicholas A Athanasou
The McKee-Farrar (MF) prosthesis was the first widely used total hip replacement (THR) to employ a metal-on-metal (MoM) articulation. These implants had a high rate of early aseptic loosening but a number achieved good long-term implant survival, stimulating the reintroduction of second and third generation implants of this type. In this study we analysed archival histopathology of periprosthetic tissues in twenty cases of MF aseptic implant failure to determine if there was evidence of an innate and adaptive immune response similar to that seen in modern MoM implants...
May 2017: Journal of Materials Science. Materials in Medicine
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