Harnessing nanotopography to enhance osseointegration of clinical orthopredic titanium implants- an in Vitro and in Vivo analysis

Vitali Goriainov, Gry Hulsart-Billstrom, Terje Sjostrom, Douglas Dunlop, Bo Su, Richard Oreffo

Research output: Contribution to journalArticle (Academic Journal)

10 Citations (Scopus)
195 Downloads (Pure)

Abstract

Despite technological advancements, further innovations in the field of orthopedics and bone regeneration are essential to meet the rising demands of an increasing aging population and associated issues of disease, injury and trauma. Nanotopography provides new opportunities for novel implant surface modifications and promises to deliver further improvements in implant performance. However, the technical complexities of nanotopography fabrication and surface analysis have precluded identification of the optimal surface features to trigger osteogenesis. We herein detail the osteoinductive potential of discrete nanodot and nanowire nanotopographies. We have examined the ability of modified titanium and titanium alloy (Ti64) surfaces to induce bone-specific gene activation and extracellular matrix protein expression in human skeletal stem cells (SSCs) in vitro, and de novo osteogenic response within a murine calvarial model in vivo. This study provides evidence of enhanced osteogenic response to nanowires 300 surface modifications, with important implications for clinical orthopedic application.
Original languageEnglish
Article number44
Number of pages14
JournalFrontiers in Bioengineering and Biotechnology
Volume6
DOIs
Publication statusPublished - 11 Apr 2018

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  • Projects

    MRC Innovation Grant

    Jenkinson, H. F., Nobbs, A. H. & Su, B.

    1/04/1631/05/18

    Project: Research

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