Enhanced osseointegration through direct energy deposition porous coating for cementless orthopedic implant fixation.

ABSTRACT: Direct energy deposition (DED) is a newly developed 3D metal printing technique that can be utilized on a porous surface coating of joint implants, however there is still a lack of studies on what advantages DED has over conventional techniques. We conducted a systematic mechanical and biological comparative study of porous coatings prepared using the DED method and other commercially available technologies including titanium plasma spray (TPS), and powder bed fusion (PBF). DED showed higher porosity surface (48.54%) than TPS (21.4%) and PBF (35.91%) with comparable fatigue cycle. At initial cell adhesion, cells on DED and PBF surface appeared to spread well with distinct actin stress fibers through immunofluorescence study. It means that the osteoblasts bind more strongly to the DED and P

SUBMITTER: Ryu DJ 

PROVIDER: S-EPMC8595809 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature