Facchinello, Yann, Brummund, Martin, Mac-Thiong, Jean-Marc, Petit, Yvan et Brailovski, Vladimir.
22 août 2016.
« Optimizing Spinal Implants through Modeling ».
[Article de recherche]. Substance ÉTS.
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Résumé
Fusion surgery is frequently used for treating scoliosis, fractures or spinal cord injury. Following fusion surgery, adjacent segments complications occur in up to 40% of the patients. Because of the high stiffness of the posterior instrumentations conventionally used, a stress concentration is created at the extremities of the implants, leading to adjacent segment complications. An innovative concept of shape memory alloys rods with variable flexural stiffness is proposed to lower the stress observed on the adjacent segments. Local Joule effect annealing was used to produce biocompatible rods with decreased proximal stiffness. The variable rods combined with transverse process hooks as upper anchors decrease the stress concentration at the adjacent segment and the pullout forces on the proximal anchors.
| Type de document: | Article de revue ou de magazine, non révisé par les pairs |
|---|---|
| Validation par les pairs: | Non |
| Professeur: | Professeur Petit, Yvan Brailovski, Vladimir |
| Affiliation: | Génie mécanique, Génie mécanique |
| Date de dépôt: | 18 avr. 2017 14:23 |
| Dernière modification: | 17 janv. 2020 20:54 |
| URI: | https://espace2.etsmtl.ca/id/eprint/15065 |
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