Three-dimensional finite element analysis and biomechanical study on reconstruction of the large defect of proximal femur with allograft prosthesis composite in clinical bone-healing phase / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 985-988, 2009.
Article
Dans Chinois
| WPRIM
| ID: wpr-294526
ABSTRACT
Three-dimensional finite element models of the large defect of proximal femur were reconstructed with allograft prosthesis composite in clinical bone-healing phase; current model was under the given conditions of 138mm-intramedullary stem-length of host bone and 135mm defect-length of proximal femur. The femur was constructed with efilm software from CT data, then three-dimensional concrete models were created by using Proe-Wildfire software; the three-dimensional finite element models of allograft prosthesis composite were made in ANSYS11 software. Loads were simulated using the peaking values during stance walking. The stress on femur-cement-callus-prostheses and the influence of stress on the clinical bone-healing phase were analysed. The highest stress value of femur is on the medial side of the tip of the prostheses. The highest stress value of cement mantle is on the medical side of the cement mantle at the tip of the stem. The highest stress value of the prostheses is on the medial side near the upper 4cm of the stem tip. The highest stress value on the callus is at the medial side of the callus layer. The highest stress value on every part is under the corresponding fatigue strength. Clinical bone-healing phase model is well enough for stance walking.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Physiologie
/
Chirurgie générale
/
Cicatrisation de plaie
/
Phénomènes biomécaniques
/
Imagerie diagnostique
/
Ostéosarcome
/
Mise en charge
/
Analyse des éléments finis
/
Imagerie tridimensionnelle
/
Tomodensitométrie hélicoïdale
Type d'étude:
Etude diagnostique
Limites du sujet:
Femelle
/
Humains
/
Mâle
langue:
Chinois
Texte intégral:
Journal of Biomedical Engineering
Année:
2009
Type:
Article
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