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Showing 1 to 17 of 17 for “"Total knee replacement (TKR)"”.
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Wear of ultra-high molecular weight polyethylene manufactured with laser powder bed fusion
More than 750,000 total knee replacement (TKR) surgeries are performed annually in the United States (US) to treat degenerative joint diseases such as osteoarthritis. A prosthetic knee implant typically comprises a cobalt chromium (CoCr) femoral component and a polyethylene tibial insert that is …
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SPARKS: Social and Psychological Aspects of Replacement Knee Surgery - A Prospective Longitudinal Study
Background: Total Knee Replacement (TKR) surgery is typically performed to alleviate symptoms of severe, advanced osteoarthritis of the knee. TKR surgery has been shown to be an effective treatment to relieve pain and increase functional ability in the affected knee. However, after surgery a …
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Use of Topical (Intra-articular) Tranexamic Acid to Minimise Blood Loss and Transfusion in Total Knee Replacement Surgery
Introduction Total knee replacement (TKR) is a common orthopaedic procedure, with 20-70% of patients needing 1-3 units of blood, although allogeneic transfusion is not risk free. Tranexamic acid (TXA) is a synthetic antifibrinolytic agent used intravenously to stop bleeding in TKR and other …
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Statistical Modeling to Investigate Anatomy and Function of the Knee
<p>The natural knee is a hinge joint with significant functional requirements during activities of daily living; as a result, acute and chronic injuries can occur. Pathologies are influenced by joint anatomy and may include patellar maltracking, cartilage degeneration (e.g. osteoarthritis), or …
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A Randomized Controlled Trial to Establish Realistic Patient Expectations Following Total Knee Replacement Surgery
… satisfied with surgery 1 year following primary total knee replacement (TKR) (Chapter 3). In Chapter 4, we described characteristics of users and utilization patterns of the e-learning tool. In Chapter 5, we evaluated the internal consistency and construct validity of the new Knee Society Knee …
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Investigation of exercise, nutrition, and high tibial osteotomy interventions for patients with medial dominant knee osteoarthritis
… in improving outcomes for patients with knee osteoarthritis (OA) and varus alignment: 1) a 12-week minimally supervised therapeutic exercise program with nutrition recommendations, 2) and high tibial osteotomy (HTO). Methods: This dissertation involved four studies. Participants were …
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Validation and Analysis of Model-Predicted Patellar Implant-Synthetic Bone Relative Motion in Cementless Total Knee Replacement During a Single-Leg Lunge
<p>Initial stability of cementless total knee replacement (TKR) components is crucial to establish bony ingrowth into the porous interface surface and long-term fixation, however, few cementless patellar implant micromotion tests have been developed. Previous studies were all focused on qualifying …
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Enhanced pre-clinical assessment of total knee replacement using computational modelling with experimental corroboration & probabilistic applications
Demand for Total Knee Replacement (TKR) surgery is high and rising; not just in numbers of procedures, but in the diversity of patient demographics and increase of expectations. Accordingly, greater efforts are being invested into the pre-clinical analysis of TKR designs, to improve their …
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Effects on Initial Fixation of Cementless Tibial Trays in Total Knee Arthroplasty
… of the cementless tibial tray component in a total knee replacement (TKR), where increased motion at the tray-bone interface hinders bony ingrowth. With a lack of bony ingrowth, the cementless implant will not experience long-term success. Understanding which factors influence initial …
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Cementless Tibial Base Micromotion During Activities of Daily Living
<p>Initial stability of cementless total knee replacement (TKR) components is directly related to long-term fixation and success, as excess motion hinders bony ingrowth. To assess implant stability, there is a need for more physiologically accurate loading conditions, incorporating forces and …
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Research into the Design and Validation of an Innovative Intraoperative Load Sensor for Total Knee Replacements through Experimental and Cadaveric Investigations
Balancing the force between compartments in the knee joint during a Total Knee Replacement (TKR) is a vital parameter for surgeons to achieve successful outcomes for patients due to the complexity of the joint, articulating surfaces, tendons, and ligaments. These structures are all impacted by the …
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An Exploration into the Relationship between Knee Shape and Kinematics Before and After Total Knee Replacement
The knee joint is unique in its design and it is thought that its articular shape is the main driver of biomechanical behaviour. Although the shape of the bony knee is acknowledged to change with osteoarthritis, the specific relationship between shape changes and function is not well understood. …
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An Exploration into the Relationship between Knee Shape and Kinematics Before and After Total Knee Replacement
The knee joint is unique in its design and it is thought that its articular shape is the main driver of biomechanical behaviour. Although the shape of the bony knee is acknowledged to change with osteoarthritis, the specific relationship between shape changes and function is not well understood. …
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ELDERLY SINGAPOREANS' PERCEPTIONS OF UNDERGOING JOINT REPLACEMENT SURGERY: A QUALITATIVE STUDY
TOTAL HIP AND KNEE REPLACEMENTS ALLEVIATE PAIN AND DISABILITY, RESTORE FUNCTION AND IMPROVE A PATIENT?S QUALITY OF LIFE. THE AIM OF THIS STUDY WAS TO EXPLORE THE PERCEPTION OF ELDERLY SINGAPOREANS UNDERGOING JOINT REPLACEMENT SURGERY. A DESCRIPTIVE QUALITATIVE DESIGN WAS UTILISED AND GUIDED BY THE …
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Osteoarthritis. Epidemiologic and genetic aspects.
… association between body mass index (BMI) and total hip replacement (THR) and total knee replacement (TKR) due to osteoarthritis (OA), (II) assess the association between the mechanical load of work and THR and TKR due to OA, (III) evaluate the natural history of radiographic hip OA with …
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Investigation of a heirarchical collagen scaffold/3D printed lattice structure designed for use in total knee replacements
… is a common cause of late-stage failure in total knee replacement (TKR) surgery. This multifactorial condition is exacerbated by stress shielding and micromotion at the bone/implant interface. Stress shielding can be reduced using implant materials with a similar modulus to that of the …
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Patient Movement Monitoring Based on IMU and Deep Learning
… as a diagnostic tool for osteoarthritic (OA) and total knee replacement patients (TKR) through a detailed biomechanical assessment and development of machine learning algorithms. Specifically, the first study developed a relevant dataset consisting of IMU and associated biomechanical parameters of …