Recent development in multizonal scaffolds for osteochondral regeneration  

作　　者：Le Yu Sacha Cavelier Brett Hannon Mei Wei 

机构地区：[1]Department of Chemical and Biomolecular Engineering,Ohio University,Athens,OH,45701,USA [2]Biomedical Engineering Program,Ohio University,Athens,OH,45701,USA [3]Department of Mechanical Engineering,Ohio University,Athens,OH,45701,USA

出　　处：《Bioactive Materials》2023年第7期122-159,共38页生物活性材料（英文）

摘　　要：Osteochondral(OC)repair is an extremely challenging topic due to the complex biphasic structure and poor intrinsic regenerative capability of natural osteochondral tissue.In contrast to the current surgical approaches which yield only short-term relief of symptoms,tissue engineering strategy has been shown more promising outcomes in treating OC defects since its emergence in the 1990s.In particular,the use of multizonal scaffolds(MZSs)that mimic the gradient transitions,from cartilage surface to the subchondral bone with either continuous or discontinuous compositions,structures,and properties of natural OC tissue,has been gaining momentum in recent years.Scrutinizing the latest developments in the field,this review offers a comprehensive summary of recent advances,current hurdles,and future perspectives of OC repair,particularly the use of MZSs including bilayered,trilayered,multilayered,and gradient scaffolds,by bringing together onerous demands of architecture designs,material selections,manufacturing techniques as well as the choices of growth factors and cells,each of which possesses its unique challenges and opportunities.

关 键 词：Multizonal scaffolds Osteochondral regeneration FABRICATION CELLS Growth factors 

分 类 号：R318[医药卫生—生物医学工程]