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https://www.readbyqxmd.com/read/28929828/increased-risk-of-aseptic-loosening-for-43-525-rotating-platform-vs-fixed-bearing-total-knee-replacements
#1
Oystein Gothesen, Stein Hakon L Lygre, Michelle Lorimer, Stephen Graves, Ove Furnes
Background and purpose - Given similar functional outcomes with mobile and fixed bearings, a difference in survivorship may favor either. This study investigated the risk of aseptic loosening for the most used subtypes of mobile-bearing rotating-platform knees, in Norway and Australia. Patients and methods - Primary TKRs reported to the Norwegian and Australian joint registries, between 2003 and 2014, were analyzed with aseptic loosening as primary end-point and all revisions as secondary end-point. We hypothesized that no difference would be found in the rate of revision between rotating-platform and the most used fixed-bearing TKRs, or between keeled and non-keeled tibia...
September 20, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28919368/a-comparison-of-clinical-follow-up-of-different-total-temporomandibular-joint-replacement-prostheses-a-systematic-review-and-meta-analysis
#2
REVIEW
Luxiang Zou, Dongmei He, Edward Ellis
PURPOSE: There are different total temporomandibular joint (TMJ) prostheses on the market but no comparison of their efficacy. The purpose of this meta-analysis was to evaluate the effectiveness of different TMJ replacement (TJR) systems. MATERIALS AND METHODS: A systematic review and meta-analysis was performed using the PubMed, Embase, Medline, and Cochrane Library search engines in May 2017 to identify qualified studies. Outcome measurements were changes in maximal incisal opening (MIO), pain, dietary limitations, and functional deficiencies from before to after TJR...
August 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28918788/-fast-track-total-knee-arthroplasty
#3
Kirill Gromov, Billy B Kristensen, Christoffer Calov Jørgensen, Torben Bæk Hansen, Henrik Kehlet, Henrik Husted
Fast-track total knee arthroplasty (TKA) is a well-established concept including optimized logistics and evidence-based treatment, focusing on minimizing surgical stress and improved post-operative recovery, thus leading to lower mortality and morbidity as well as high patient satisfaction. All patients are eligible for fast-track TKA, and hence the fast-track concept should be standard at all joint replacement facilities. Future challenges of fast-track TKA include safe introduction of outpatient protocols, acute and chronic pain after surgery and optimal utilization of post-operative physiotherapy...
September 18, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28918227/bone-remodeling-of-the-distal-femur-after-uncemented-total-knee-arthroplasty-a-2-year-prospective-dxa-study
#4
Mikkel Rathsach Andersen, Nikolaj S Winther, Thomas Lind, Henrik M Schrøder, Michael Mørk Petersen
Loss of bone stock as a response to the bone trauma, immobilization, and stress shielding related to joint replacement surgery increases the risk of fracture of the distal femur after total knee arthroplasty. Previous studies of uncemented femoral components have reported very high levels of bone loss in the distal femur. This study investigates the adaptive bone remodeling of the distal femur after uncemented total knee arthroplasty. We performed a 2-year follow-up of 53 patients (mean age 61.5 [38-70] years, F/M = 27/26, body mass index 29...
September 13, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28918182/uk-temporomandibular-joint-replacement-database-a-report-on-one-year-outcomes
#5
R Elledge, A Attard, J Green, D Lowe, S N Rogers, A J Sidebottom, B Speculand
Alloplastic temporomandibular joint (TMJ) replacements are increasingly subspecialised, and supraregional centres that treat sufficient numbers to ensure high standards are emerging. Having recently reported the introduction of a national TMJ joint replacement database that is endorsed by the British Association of TMJ Surgeons (BATS), we now present the first-year outcomes. This was a review of all data in the BATS National Case Registration of TMJ Replacement as of June 2014. A total of 252 one-year outcome records were available...
September 13, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28917522/does-physical-activity-change-following-hip-and-knee-replacement-matched-case-control-study-evaluating-physical-activity-scale-for-the-elderly-data-from-the-osteoarthritis-initiative
#6
T O Smith, M Mansfield, J Dainty, G Hilton, C J V Mann, C M Sackley
OBJECTIVES: To determine whether physical activity measured using the Physical Activity Scale for the Elderly (PASE), changes during the initial 24 months post-total hip (THR) or knee replacement (TKR), and how this compares to a matched non-arthroplasty cohort. DESIGN: Case-controlled study analysis of a prospectively collected dataset. SETTING: USA community-based. PARTICIPANTS: 116 people post-THR, 105 people post-TKR compared to 663 people who had not undergone THR or TKR, or had hip or knee osteoarthritis...
September 13, 2017: Physiotherapy
https://www.readbyqxmd.com/read/28917519/endoscopic-or-arthroscopic-iliopsoas-tenotomy-for-iliopsoas-impingement-followingtotal-hip-replacement-a-prospective-multicenter-64-case-series
#7
W Guicherd, N Bonin, T Gicquel, J E Gedouin, X Flecher, M Wettstein, M Thaunat, N Prevost, E Ollier, O May
INTRODUCTION: Impingement between the acetabular component and the iliopsoas tendon is a cause of anterior pain after total hip replacement (THR). Treatment can be non-operative, endoscopic or arthroscopic, or by open revision of the acetabular component. Few studies have assessed these options. The present study hypothesis was that endo/arthroscopic treatment provides rapid pain relief with a low rate of complications. METHODS: A prospective multicenter study included 64 endoscopic or arthroscopic tenotomies for impingement between the acetabular component and the iliopsoas tendon, performed in 8 centers...
September 13, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28915961/short-stem-total-hip-arthroplasty-potential-explanations-for-persistent-post-surgical-thigh-pain
#8
Isabel A C Baert, Enrique Lluch, Francis Van Glabbeek, Rudy Nuyts, Salim Rufai, Joanna Tuynman, Filip Struyf, Mira Meeus
Short stem uncemented femoral implants were developed with the aim of preserving proximal bone stock for future revisions, improving biomechanical reconstruction, aiding insertion through smaller incisions and potentially decreasing or limiting the incidence of thigh pain. Despite all the advantages of short stem designs, it remains unclear whether they are able to limit post-surgical thigh pain. In patients with short stem hip arthroplasty and persistent thigh pain, it is of the utmost importance to understand the potential etiologies of this chronic pain for selecting the appropriate treatment strategy...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28914139/the-influence-of-geometric-design-variables-on-the-kinematic-performance-of-a-surface-guided-total-knee-replacement
#9
Shabnam Pejhan, Eric Bohm, Jan-Mels Brandt, Urs Wyss
OBJECTIVE: Tibiofemoral geometries in a total knee replacement (TKR) affect the performance of an implant during activities of daily living. The specially shaped components of a surface-guided TKR aim to control the tibiofemoral motion, such that a normal pattern of motion is achieved, even at high flexion angles. The purpose of this study was to assess the influence of the design parameters on the kinematic behavior of such an implant. A combination of design variables was determined that resulted in the least deviation from the design kinematic target...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28913405/post-acute-care-disparities-in-total-joint-arthroplasty
#10
Roy H Lan, Atul F Kamath
BACKGROUND: Understanding the socioeconomic factors that influence hospitalization and post-discharge metrics after joint replacement is important for identifying key areas of improvement in the delivery of orthopaedic care. METHODS: An institutional administrative data set of 2869 patients from an academic arthroplasty referral center was analyzed to quantify the relationship between socioeconomic factors and post-acute rehabilitation care received, length of stay, and cost of care...
September 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/28913402/midterm-analysis-of-the-selexys-cup-with-ceramic-inlay
#11
Tamas Halasi, David Kieser, Christopher M A Frampton, Gary J Hooper
BACKGROUND: Ceramic-on-ceramic (CoC) articulations in total hip replacement (THR) has been accepted as giving reliable mid-term results; however recent studies have reported higher revision rates of some implants. This study analyses the nationwide results of the seleXys TPS cup and the Bionit2 liner (Mathys, Bettlach, Switzerland) with respect to implant survival, cause for revision and mortality rates compared to other CoC articulations using the same stem. METHODS: Utilising the New Zealand Joint Registry, we compared the seleXys TPS cup with Bionit2 liner used with an uncemented Twinsys femoral stem to every other uncemented CoC THR using the same stem...
September 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/28913376/joint-distraction-in-advanced-osteoarthritis-of-the-ankle
#12
REVIEW
E Carlos Rodriguez-Merchan
BACKGROUND: Ankle joint distraction (AJD) avoids the potential complications associated with ankle fusion or total ankle replacement (TAR) in patients with advanced ankle osteoarthritis (OA). AJD could a tenable option to ankle fusion or TAR. METHODS: A review has been performed on the role of AJD in advanced OA of the ankle. The exploration machine was MedLine. The keywords utilized were: joint distraction ankle. Three hundred and eleven articles were found. Of the above-mentioned, only 14 were chosen and analyzed because they were rigorously focused on the issue and the question of this paper...
July 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28898559/changes-in-physical-activity-after-total-hip-or-knee-arthroplasty-a-systematic-review-and-meta-analysis-of-6-and-12-month-outcomes
#13
Thomas Hammett, Aram Simonian, Monica Austin, Robert Butler, Kelli D Allen, Leila Ledbetter, Adam P Goode
OBJECTIVE: Little is known about the extent to which physical activity (PA) changes following total knee or hip joint replacement relative to pain, physical function and quality of life. Our objective was to conduct a systematic review and meta-analysis on changes in PA relative to pain, quality of life and physical function after total knee or hip joint replacement. METHODS: We searched PubMed (Medline), Embase and Cinahl, for peer-reviewed, English-language cohort studies measuring PA with an accelerometer from pre-surgery to post-surgery...
September 12, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28888935/viscoplastic-crack-initiation-and-propagation-in-crosslinked-uhmwpe-from-clinically-relevant-notches-up-to-0-5mm-radius
#14
P Abhiram Sirimamilla, Clare M Rimnac, Jevan Furmanski
Highly crosslinked UHMWPE is now the material of choice for hard-on-soft bearing couples in total joint replacements. However, the fracture resistance of the polymer remains a design concern for increased longevity of the components in vivo. Fracture research utilizing the traditional linear elastic fracture mechanics (LEFM) or elastic plastic fracture mechanics (EPFM) approach has not yielded a definite failure criterion for UHMWPE. Therefore, an advanced viscous fracture model has been applied to various notched compact tension specimen geometries to estimate the fracture resistance of the polymer...
September 1, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28887704/-indication-and-limitations-of-meniscus-replacement
#15
REVIEW
C Stärke, S Kopf, R Becker
BACKGROUND: Meniscal lesions are among the most important musculoskeletal disorders and are the most common indication for knee joint arthroplasty. However, the structural integrity and function is rarely retained, and a loss of tissue results. Thus, there is a huge demand for meniscal replacement options. CURRENT PROCEDURES: Autografts were used in the past but did not fulfill expectations. Meniscus allografts have been developed to be a viable treatment option...
September 8, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28886084/an-in-vitro-simulation-method-for-the-tribological-assessment-of-complete-natural-hip-joints
#16
Dawn Groves, John Fisher, Sophie Williams
The use of hip joint simulators to evaluate the tribological performance of total hip replacements is widely reported in the literature, however, in vitro simulation studies investigating the tribology of the natural hip joint are limited with heterogeneous methodologies reported. An in vitro simulation system for the complete natural hip joint, enabling the acetabulum and femoral head to be positioned with different orientations whilst maintaining the correct joint centre of rotation, was successfully developed for this study...
2017: PloS One
https://www.readbyqxmd.com/read/28884103/lateral-patellar-retinacular-release-changes-over-the-last-ten-years
#17
REVIEW
Leonardo Pini Rosalem Marciano da Fonseca, Ednei Haruo Kawatake, Alberto de Castro Pochini
Lateral retinacular release is a useful resource in knee surgery that can be used for disorders of the extensor mechanism. For many years, it was indiscriminately used in the treatment of the various patellofemoral joint alterations, with conflicting functional results. This study aimed to analyze the changes that have occurred in the indications and clinical effectiveness of lateral retinacular release by reviewing the relevant literature of the past ten years, comparing it to the classic literature on the subject...
June 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28883822/the-role-of-the-chemokine-system-in-tissue-response-to-prosthetic-by-products-leading-to-periprosthetic-osteolysis-and-aseptic-loosening
#18
REVIEW
Tereza Dyskova, Jiri Gallo, Eva Kriegova
Millions of total joint replacements are performed annually worldwide, and the number is increasing every year. The overall proportion of patients achieving a successful outcome is about 80-90% in a 10-20-years time horizon postoperatively, periprosthetic osteolysis (PPOL) and aseptic loosening (AL) being the most frequent reasons for knee and hip implant failure and reoperations. The chemokine system (chemokine receptors and chemokines) is crucially involved in the inflammatory and osteolytic processes leading to PPOL/AL...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28882135/wait-time-management-strategies-for-total-joint-replacement-surgery-sustainability-and-unintended-consequences
#19
Marie-Pascale Pomey, Nathalie Clavel, Claudia Amar, Juan Carlos Sabogale-Olarte, Claudia Sanmartin, Carolyn De Coster, Tom Noseworthy
No abstract text is available yet for this article.
September 7, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28873263/continuous-infusion-of-coagulation-factor-concentrates-during-intensive-treatment
#20
REVIEW
P A Holme, G E Tjønnfjord, A Batorova
In clinical management of bleeds and surgical procedures in patients suffering from bleeding disorders either repetitive bolus injections (BI) or continuous infusion (CI) can be used for coagulation factor replacement. Continuous infusion seems to be an attractive route of administration and may be considered if replacement therapy is required for more than 3 days. The strongest argument favouring continuous infusion is its superiority in providing the patient with a safe and constant level of the deficient coagulation factor by balancing input with clearance...
September 5, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
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