Biomaterials and Bioactive Agents in Spinal Fusion

Tissue Engineering. Part B, Reviews
Rui M DuarteJorge Correia-Pinto

Abstract

Management of degenerative spine pathologies frequently leads to the need for spinal fusion (SF), where bone growth is induced toward stabilization of the interventioned spine. Autologous bone graft (ABG) remains the gold-standard inducer, whereas new bone graft substitutes attempt to achieve effective de novo bone formation and solid fusion. Limited fusion outcomes have driven motivation for more sophisticated and multidisciplinary solutions, involving new biomaterials and/or biologics, through innovative delivery platforms. The present review will analyze the most recent body of literature that is focused on new approaches for consistent bone fusion of spinal vertebrae, including the development of new biomaterials that pursue physical and chemical aptitudes; the delivery of growth factors (GF) to accelerate new bone formation; and the use of cells to improve functional bone development. Bone graft substitutes currently in clinical practice, such as demineralized bone matrix and ceramics, are still used as a starting point for the study of new bioactive agents. Polyesters such as polycaprolactone and polylactic acid arise as platforms for the development of composites, where a mineral element and cell/GF constitute the delive...Continue Reading

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Aug 9, 2018·Journal of Biomaterials Science. Polymer Edition·Peiqing LiangChangyun Quan
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