Additively manufactured implant with ceramic coating

An implant implantable into a human body, the implant comprising:

• a metallic substrate formed by additive manufacturing, the metallic substrate engageable with a bone, the metallic substrate including:
• an inner surface defining a plurality of pores configured to promote bone ingrowth into the metallic substrate;
• an outer surface;
• and
• a plurality of retention features extending from a rounded portion of the metallic substrate, each of the plurality of retention features including:
• a proximal portion connected to the outer surface, the proximal portion defining a proximal width;
• and
• a distal portion connected to the proximal portion, the distal portion defining a distal width larger than the proximal width;
• and
• a ceramic layer spray coated to the metallic substrate and formed around the retention features to interlock the ceramic layer with the metallic substrate, the ceramic layer forming a bearing surface of the implant, the ceramic layer including a thickness between 100 and 300 micrometers.