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Examples

Hip Spine Dental Others

Hip


Material nonlinear analysis of the femur to evaluate bone strength by increasing load on the femural head until a fracture with constraint on the distal end of the femur.

Material nonlinear analysis of the stem-implanted femor by increaseing load on the femural head until a fracture with constraint on the distal end of the femor.

Sacram, pelvis, femur, sacroiliac joint and hip cartilage are modeled. Body weight is loaded on sacram and a force is appleid on greater trochanter as a abductor muscle. After analysis, direction of principal stress can be visualized in addition to contour maps.

Total hip arthroplasty model was analyzed with contact condition between femoral head and acetabular liner. Reaction force between them can be displayed.

Rotational acetabular osteotomy model can be virtually constructed from preoperative CT data with keeping inhomogeneous material properties.

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Spine


Material nonlinear analysis of lumber spine with compression condition. Equivalent stress and fracture line are displayed.

Lumbar spine fixed by S2 alar iliac (S2AI) screws was analyzed with material nonlinearity. Each equivalent stress of screw and bone and fractured bone elements are visualized.
Offered by Dr. Hironari Takaishi(Institute of Medical Science, Tokyo Medical University)

Pull-out strength of pedicle screw inserted into lumber spine was analyzed.The process of fracture and equivalent stress were visualized.
Pull-out strength is obtained by drawing load-displacement curve.

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Dental


Lower jaw bone with implant was modeled. Each boundary of implants and jaw bone were contact condition.Cross-section contour of stress and reaction force were visualized.

Stress distribution during mastication was analyzed. All skull bones were modeled to apply muscles of mastication and periodontal mambranes were modeled beteen jaw bone and teeth. Reaction force between teeth and substance were also visualized.

Upper jaw bone inserted All on 4 implant bridge was modeled. Stress distribution of implant and jaw bone during mastication were visualized.

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Others

Skull bones and cervical spines were modeled. Stress propagation in the case of collision with a ball at 150km/h was analyzed by perfoming dynamic analysis.

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