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Biomechanical study of positions of femoral head-and-neck nail in fixation of proximal femoral fracture / 中国矫形外科杂志
Article en Zh | WPRIM | ID: wpr-548414
Biblioteca responsable: WPRO
ABSTRACT
[Objective]To analyze the biomechanics of different positions of femoral head-and-neck nail in fixation of proximal femoral fracture.[Method]Stable and unstable fracture models were made from 24 fresh femur specimens,and fixed with r-nail and DHS.Head-and-neck nails were placed in different positions to test their mechanical properties of anti-compression,anti-bending,anti-shearing and anti-torsion,and compared with each other.[Result]Mechanical properties of the femoral strength,stiffness,stability and loading capacity were tested and compared.To the stable fracture group,head-and-neck nail should be placed in middle-lower and posterior 1/3 of femoral neck,which leads to the best loading capacity.To the unstable fracture group,it should be placed between femoral head and neck,which lead to strong obliquity mechanics and valuable for bone union.[Conclusion]Confirm of the best position of femoral head-and-neck nail could improve the effect of fixation and enhance the surgical treatment of proximal femoral fracture.
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Texto completo: 1 Índice: WPRIM Idioma: Zh Revista: Orthopedic Journal of China Año: 2006 Tipo del documento: Article
Texto completo: 1 Índice: WPRIM Idioma: Zh Revista: Orthopedic Journal of China Año: 2006 Tipo del documento: Article