Relevant bibliographies by topics / Single-radius (SR) femoral design

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Academic literature on the topic 'Single-radius (SR) femoral design'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Single-radius (SR) femoral design"

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Lee, Merrill, Jerry Yongqiang Chen, Hao Ying, et al. "Quality of life and functional outcome after single-radius and multi-radius total knee arthroplasty." Journal of Orthopaedic Surgery 26, no. 3 (2018): 230949901879241. http://dx.doi.org/10.1177/2309499018792417.

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Purpose: The main objective of this study was to compare quality of life and functional outcome in patients who have undergone a single-radius (SR) or multi-radius (MR) total knee arthroplasty (TKA). The secondary objective was to observe changes in knee range of movement (ROM) and standardized knee scores (KSCs) in these patients. The hypothesis was that there would be no statistically significant difference between the two patient groups in quality of life and functional outcome. Methods: One hundred three SR TKAs were performed by a single surgeon between August 2008 and December 2012. A pr
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INNOCENTI, BERNARDO, HÉCTOR ROBLEDO YAGÜE, RAQUEL ALARIO BERNABÉ, and SILVIA PIANIGIANI. "INVESTIGATION ON THE EFFECTS INDUCED BY TKA FEATURES ON TIBIO-FEMORAL MECHANICS PART I: FEMORAL COMPONENT DESIGNS." Journal of Mechanics in Medicine and Biology 15, no. 02 (2015): 1540034. http://dx.doi.org/10.1142/s0219519415400345.

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The lack of awareness of the exact number of instantaneous centers of knee flexion/extension rotation leads to the presence in the market of total knee arthroplasty (TKA) femoral components designed under different hypotheses. Although single radius (SR) designs are thought to replicate the physiological behavior in a more realistic way, surgeons do not always agree about the veracity of their theoretical advantages with respect to the multiple radii components (J-curve (JC) design). Apart from clinical studies, up to now, any literature study biomechanically and exhaustively compares these tw
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International, Journal of Medical Science and Innovative Research (IJMSIR). "A Comparative Study on Effect of Posterior Femoral Condylar Offset (PCO) on Clinical Results Between Single-Radius (Sr) & Multi-Radius (Mr) Femoral Design Implants/ Components in Posterior Stabilized Total Knee Arthroplasty (PS TKA)." International Journal of Medical Science and Innovative Research (IJMSIR) 9, no. 5 (2024): 111–21. https://doi.org/10.5281/zenodo.15431315.

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<strong>Conflicts of Interest:</strong> Nil &nbsp; <strong>Abstract</strong> <strong>Introduction</strong>: This study was carried out to compare the effect of femoral Posterior Condylar Offset (PCO) on clinical results between single-radius (SR) and multi-radius (MR) femoral design components in posterior stabilized total knee arthroplasty. (PS TKA) <strong>Material and Methods</strong>: This hospital based prospective observational study was conducted at Department of Orthopaedic, Santokba Durlabhji Memorial Hospital, Jaipur, Rajasthan. Between 1 January 2018 to 31 December 2018 with 6 month
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Ng, Jimmy Wui Guan, Benjamin V. Bloch, and Peter J. James. "Sagittal radius of curvature, trochlea design and ultracongruent insert in total knee arthroplasty." EFORT Open Reviews 4, no. 8 (2019): 519–24. http://dx.doi.org/10.1302/2058-5241.4.180083.

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Multi radius (MR) total knee arthroplasty (TKA) has been associated with mid-flexion instability. Single radius (SR) TKA may provide better anteroposterior stability through single flexion axis and biomechanical advantage for quadriceps function. Medial pivot (MP) TKA and gradually reducing (GR) radius TKA produce better knee kinematics. Clinical outcomes are equivalent for SR, MR and MP TKA. Short-term studies have shown better clinical outcomes and kinematics for GR TKA. Thinner and narrow anterior flange, deeper trochlea groove and more anatomical trochlea design reduces patellofemoral comp
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Mushtaq, Nadeem, David Isaac, Katherine Dillow, Paul Gill, and Alexander Liddle. "Patient-Reported Outcomes following Single- and Multiple-Radius Total Knee Replacement: A Randomized, Controlled Trial." Journal of Knee Surgery 31, no. 01 (2017): 087–91. http://dx.doi.org/10.1055/s-0037-1602132.

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AbstractAlthough single-radius (SR) designs of total knee replacement (TKR) have theoretical benefits, the clinical advantage conferred by such designs is unknown. The aim of this randomized, controlled study was to compare the short-term clinical outcomes of the two design rationales. A total of 105 knees were randomized to receive either a single radius (Scorpio, Stryker; SR Group) or multiple radius (AGC, Zimmer Biomet; MR group) TKR. Patient-reported outcomes (Oxford Knee Score [OKS] and Knee Society Score [KSS]) were collected at 6 weeks, 6 months, and 1 year following surgery. No knees w
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Deehan, David John, K. Milton Ghosh, Alasdair Blain, Lee Longstaff, and Steven Rushton. "Sagittal flexion arc evaluation for a modern generation single-radius femoral component design." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 232, no. 4 (2018): 412–17. http://dx.doi.org/10.1177/0954411918759136.

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Single-radius femoral total knee design aims to deliver improved kinematic behaviour when compared to the standard two-radii geometry. This study has evaluated the behaviour, through a functional range of motion in the sagittal plane, of a single-radius femoral component compared to a dual-radius standard knee construct. Particular focus was placed on how the flexion axes of the native and replaced knee approximated to the transepicondylar axis through a loaded navigated knee design. Significant differences in flexion arcs were noted between the native and total knee arthroplasty state. These
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Gómez-Barrena, Enrique, Carmelo Fernandez-García, Almudena Fernandez-Bravo, Raquel Cutillas-Ruiz, and Gloria Bermejo-Fernandez. "Functional Performance with a Single-radius Femoral Design Total Knee Arthroplasty." Clinical Orthopaedics and Related Research® 468, no. 5 (2009): 1214–20. http://dx.doi.org/10.1007/s11999-009-1190-2.

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Holthof, Sander, Andrew Amis, Richard Van Arkel, and Mick Rock. "NOVEL ROBOTIC TECHNIQUE TO INVESTIGATE TOTAL KNEE ARTHROPLASTY STABILITY." Orthopaedic Proceedings 105-B, SUPP_13 (2023): 66. http://dx.doi.org/10.1302/1358-992x.2023.13.066.

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AbstractIntroductionMid-flexion instability may cause poor outcomes following TKA. Surgical technique, patient-specific factors, and implant design could all contribute to it, with modelling and fluoroscopy data suggesting the latter may be the root cause. However, current implants all pass the preclinical stability testing standards, making it difficult to understand the effects of implant design on instability. We hypothesized that a more physiological test, analysing functional stability across the range of knee flexion-extension, could delineate the effects of design, independent of surgic
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Sumner, Bonnie, John D. McCamley, David J. Jacofsky, and Marc C. Jacofsky. "Comparison of Knee Kinematics and Kinetics during Stair Ascent in Single-Radius and Multiradius Total Knee Arthroplasty." Journal of Knee Surgery 32, no. 09 (2018): 872–78. http://dx.doi.org/10.1055/s-0038-1669952.

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AbstractTraditionally total knee arthroplasty (TKA) design has been based on theories of the movement of the healthy knee joint. Currently, there are two competing theories on the flexion/extension axis of rotation of the knee with disparate radii of rotation, and thus differing movement patterns. The purpose of our study was to compare stair ascent kinematics and kinetics of single-radius (SR) and multiradius (MR) TKA subjects. We hypothesized that the knee kinematics and kinetics of SR TKA patients would more closely replicate healthy age matched controls during stair ascent than MR TKA pati
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Sumner, Bonnie, John McCamley, David J. Jacofsky, and Marc C. Jacofsky. "Comparison of Knee Kinematics and Kinetics during Stair Descent in Single- and Multi-Radius Total Knee Arthroplasty." Journal of Knee Surgery 33, no. 10 (2019): 1020–28. http://dx.doi.org/10.1055/s-0039-1692652.

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AbstractDespite continuing advances, nearly 20% of patients remain dissatisfied with their total knee arthroplasty (TKA) outcomes. Single-radius (SR) and multiradius (MR) TKA designs are two commonly used knee replacement designs based on competing theories of the flexion/extension axis of the knee. Our aim was to characterize stair descent kinematics and kinetics in SR and MR TKA subjects. We hypothesized that 1 year after TKA, patients who received SR TKA will more closely replicate the knee kinematics and kinetics of healthy age-matched controls during stair descent, than will MR TKA patien
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Conference papers on the topic "Single-radius (SR) femoral design"

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Williams, John L. "Polycentric Versus Single Axis Sagittal Femoral Geometry and Paradoxical Anterior Translation in Total Knee Implants." In ASME 2009 4th Frontiers in Biomedical Devices Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/biomed2009-83011.

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Paradoxical anterior translation of the femur (undesirable anterior motion of the femoral side of the knee relative to the tibia) has been observed in patients with posterior cruciate ligament (PCL) retaining total knee devices in which the ACL is absent. Simulations of a double leg squat of several total knee implant designs were compared using measurements of tibio-femoral ‘contact positions’ similar to those published in fluoroscopic studies. The objective of the study was to examine if a femoral design with a single axis (single radius) of curvature in the para-sagittal plane undergoes par
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Cacciatore, Francesco, Jorge Cardín, Guillermo Rodríguez, and Héctor Gutiérrez. "Space Rider Re-Entry Module Scaled Down Flight Test Campaign." In ESA 12th International Conference on Guidance Navigation and Control and 9th International Conference on Astrodynamics Tools and Techniques. ESA, 2023. http://dx.doi.org/10.5270/esa-gnc-icatt-2023-071.

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As part of the Space Rider’s (SR) verification and validation campaign of the Guidance, Navigation and Control (GNC) system for the flight under the parafoil phase, a series of Scale Down Flight Test (SDFT) are envisioned for phases C/D of the project. These tests have the following objectives for what concerns GNC: increasing the maturity level of the Parafoil GNC (PGNC), de-risking especially its novel terminal guidance approach in view of flight and for drop tests, provide a preliminary assessment of the real-life achievable landing accuracy, test onboard wind estimation, test robustness of
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