In vitro and in vivo evaluation of a polylactic acid‐bioactive glass composite for bone fixation devices - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Biomedical Materials Research Part B: Applied Biomaterials Année : 2016

In vitro and in vivo evaluation of a polylactic acid‐bioactive glass composite for bone fixation devices

Résumé

Poly(lactic acid) is nowadays among the most used bioabsorbable materials for medical devices. To promote bone growth on the material surface and increase the degradation rate of the polymer, research is currently focused on organic-inorganic composites by adding a bioactive mineral to the polymer matrix. The purpose of this study was to investigate the ability of a poly(L,DL-lactide)-Bioglass® (P(L,DL)LA-Bioglass(®) 45S5) composite to be used as a bone fixation device. In vitro cell viability testing of P(l,dl)LA based composites containing different amounts of Bioglass(®) 45S5 particles was investigated. According to the degradation rate of the P(L,DL)LA matrix and the cytocompatibility experiments, the composite with 30 wt % of Bioglass® particles seemed to be the best candidate for further investigation. To study its behavior after immersion in simulated physiological conditions, the degradation of the composite was analyzed by measuring its weight loss and mechanical properties and by proceeding with X-ray tomography. We demonstrated that the presence of the bioactive glass significantly accelerated the in vitro degradation of the polymer. A preliminary in vivo investigation on rabbits shows that the addition of 30 wt % of Bioglass(®) in the P(L,DL)LA matrix seems to trigger bone osseointegration especially during the first month of implantation. This composite has thus strong potential interest for health applications.

Domaines

Biomatériaux
Fichier principal
Vignette du fichier
vergnol2015.pdf (588 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-01677784 , version 1 (21-01-2022)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

Gwenaelle Vergnol, Nathalie Ginsac, Pascaline Rivory, Sylvain Meille, Jean-Marc Chenal, et al.. In vitro and in vivo evaluation of a polylactic acid‐bioactive glass composite for bone fixation devices. Journal of Biomedical Materials Research Part B: Applied Biomaterials, 2016, 104 (1), pp.180-191. ⟨10.1002/jbm.b.33364⟩. ⟨hal-01677784⟩
77 Consultations
148 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More