Stress Analysis of PS Type Knee Prostheses under Deep Flexion
スポンサーリンク
概要
- 論文の詳細を見る
3-D finite element models of two kinds of Strykers PS type knee prostheses, Scorpio Superflex and NRG, were constructed using their CAD data with use of a nonlinear spring model and an analytical load data for deep squatting. Superflex model was formerly used in TKA, and NRG model is the latest version with a modified design of Post. Stress analysis was then performed by an explicit finite element method under continuous flexion motion from 0 to 135 degree. It was shown that only the condylar surfaces of the femoral component and the tibial insert contacted each other from 0 to 60 degree flexion for both the models, and the stress concentration in NRG was a little higher than that in Superflex. The simulation results also exhibited that severe stress concentration was generated at Post of the tibial UHMWPE insert due to Post/Cam contact. This kind of stress concentration may result in damage and failure of Post. It was shown that the design modification applied to NRG effectively reduced the stress concentration of Post.
著者
-
Todo Mitsugu
Research Institute For Applied Mechanics Kyushu University
-
NAGAMINE Ryuji
Yoshizuka Hayashi Hospital
-
YAMAGUCHI Shota
Research Institute for Applied Mechanics, Kyushu University
関連論文
- Assessment of Mechanical Stability and Safety for Fully Edentulous Maxilla with Dental Implants
- Mechanical Studies on Biomaterials for Reconstruction of Lower Limb Functions
- The Alternation of Peri-Implant Bone Response Exposed to Static Lateral Load
- 3P-159 デジタル画像相開法により得られた局所伸展刺激下における細胞骨格ネットワークの不均一な変形分布(細胞生物的課題(接着,運動,骨格,伝達,膜),第47回日本生物物理学会年会)
- P-19 Deformation Analysis of Periodontal Tissue using Digital Image Correlation Analysis
- Toughening Mechanisms of Rubber Toughened PMMA
- Effect of Displacement Rate on the Mode I Fracture Behavior of Rubber Toughened PMMA
- Measurement of dynamic interlaminar fracture toughness of FRP laminates using dynamic displacement measuring apparatus
- Stress Analysis of PS Type Knee Prostheses under Deep Flexion
- OS1(4)-15(OS01W0152) Application of Phase-Shifting Moire Interferometry to Thermal Strain Analysis of Electronic Package
- Thermo-Mechanical Deformation Analysis of Flip-Chip Packages(Electronic Devices)
- Improvement of mechanical properties of bioabsorbable PLLA/PCL polymer blends due to P(LLA-CL) blending(3A2 Cellular & Tissue Engineering & Biomaterials II)
- In Situ Polymerization and Properties of Methyl Methacrylate-Butadiene-Styrene Resin with Bimodal Rubber Particle Size Distribution
- STRESS ANALYSIS OF COMPLETE FLEXION KNEE CFK UNDER DYNAMIC MOTION(2D1 Artificial Organs & Implants II)
- Finite Element Analysis of Bone Resorption Around Dental Implant
- Dynamic Property Evaluation of PLLA/PBSL Polymer Blends using Compressive and Tensile Split Hopkinson Bar Methods
- Biomechanical Analysis of Implant Treatment for Fully Edentulous Maxillas
- Tensile Fracture Behavior of Polymethyl Methacrylate (PMMA) under Impact Loading Conditions
- Preface
- Relationship between the Load-Displacement Curve and Deformation Distribution in Porcine Mandibular Periodontium
- Visualizing Displacement and Deformation Behavior of the Periodontium under Dental Occlusion Using a Digital Image Correlation Method
- Compressive Deformation Behavior of Bioabsorbable Porous Layered Composite Materials for Articular Tissue Engineering
- Effect of Press Processing on Fracture Behavior of HA/PLLA Biocomposite Material
- Effect of LTI Blending on Fracture Properties of PLA/PCL Polymer Blend
- Characterization of Correlation between Microstructure and Fracture Properties of Poly(lactic acid) Polymer Blends
- The Effect of Hydrolysis on the Mechanical Properties of Injection-Molded Poly(L-lactic acid)
- Evaluation of Deformation Distribution in Alveolar Bone Model around Dental Implant with Numerical Approach