Bone defects exceeding a critical size cannot heal naturally, necessitating artificial implants to bridge the gap. Bioceramics, like hydroxyapatite (HA) and tricalcium phosphate (TCP), are ideal for promoting bone ingrowth and activating bone cells but lack sufficient mechanical strength for high-stress areas. Zirconia, on the other hand, offers exceptional mechanical properties but is bioinert. Combining these materials can create hybrid implants with bioactive regions for osseointegration and mechanically robust areas for load-bearing applications. Lithography-based Ceramic Manufacturing (LCM) enables the production of complex shapes with high resolution, making it well-suited for creating bone implants. With this process, we 3D-print two components using different bioceramic materials. After post-processing, to remove the organic binder, we join the two components which densify to one hybrid part in a final co-sintering step. We analysed micrographs, performed mechanical analysis, and used electron backscatter diffraction (EBSD) to gain insight into the crystallographic structure at the interface. We achieved process control with a simple ring-in-ring design and went on to increasingly complex shapes resulting in a 3D-printed sinter-joined hybrid implant with an optimized performance for complex bone repair scenarios.