Biomechanical evaluation of a bioactive artificial anterior cruciate ligament
GUERARD ; MANASSERO ; VIATEAU ; MIGONNEY ; SKALLI ; MITTON
Type de document
ARTICLE A COMITE DE LECTURE NON REPERTORIE DANS BDI (ACLN)
Langue
anglais
Auteur
GUERARD ; MANASSERO ; VIATEAU ; MIGONNEY ; SKALLI ; MITTON
Résumé / Abstract
This study aimed to assess the biomechanical performance of a new generation of artificial ligament, which can be considered ?bioactive? and ?biointegrated,? implanted in sheep. Thirty sheep were implanted: 15 sheep received the artificial ligament grafted with a bioactive polymer (grafted) and 15 received the artificial ligament without a bioactive polymer (non-grafted). The animals were sacrificed 3 or 12 months after implantation. The knee kinematics, namely flexion-extension, anterior drawer, and varusvalgus tests, were evaluated using a fully characterized custom-made device. Afterward, the specimens were tested under uniaxial tension until failure. The flexion-extension showed significant differences between (grafted or non-grafted) artificial and native ligaments 3 months after implantation. This difference became non-significant 12 months postoperatively. The anterior tibial drawer was significantly increased 3 months after implantation and remained significantly different only for non-grafted ligament 12 months after implantation. Twelve months after implantation, the differences between grafted and non-grafted ligament biomechanical properties were significant in terms of stiffness. In terms of load to failure, grafted ligaments seem to have had slightly better performance than non-grafted ligaments 12 months postoperatively. Overall these results suggest that grafted artificial ligaments have slightly better biomechanical characteristics than non-grafted artificial ligaments 12 months after implantation in sheep.
Source
Advances in Biomechanics and Applications, num. 4, pp. 239-252 p.
Editeur
Techno-Press
