Three-dimensional Printed Scaffolds with Gelatin and Platelets Enhance Preosteoblast Growth Behavior and the Sustained-release Effect of Growth Factors.

Background: Three-dimensional (3D) printing technology holds great promise for treating diseases or injuries that affect human bones with enhanced performance over traditional techniques. Different patterns of design can lead to various mechanical properties and biocompatibility to various degrees. However, there is still a long way to go before we can fully take advantage of 3D printing technologies.