Early Outcomes and Safety of Personalized 3D-Printed Knee Implants

Early clinical cases of the iTotal Identity CR 3DP show promising short-term outcomes—improved anatomical fit and measurable early functional gains that are immediately relevant for patients who may benefit from personalized implant geometry and faster recovery.

The initial case series reported rapid reductions in pain and measurable baseline-to-early follow-up improvements in function. Implant positioning appeared accurate and early stability was noted without evidence of migration at short-term follow-up; patient satisfaction was described as high. These results are preliminary and limited to early recovery metrics.

The implants employ TIDAL Technology, a porous 3D‑printed architecture intended to support osseointegration and secure fixation. The design uses tailored macro- and micro-porosity to distribute load efficiently and enhance fatigue resistance. In this small series, there were no fixation‑related adverse events reported, a reassuring early safety signal that requires confirmation with longer follow-up.

The system integrates a pre‑navigated surgical workflow that minimizes intraoperative sizing and alignment adjustments. That approach reduced instrument-set complexity and streamlined case steps in the reported procedures, potentially lowering intraoperative variability and simplifying team coordination and case planning.

Key limitations include the small case count, short follow-up interval, and absence of long‑term comparative data. Durability and performance across broader patient populations remain unaddressed; larger, longer studies are needed to validate these early findings and define long‑term fixation and survivorship.

Key Takeaways:

• Fully personalized 3D‑printed knee implants showing promising early fit and function, suggesting a role for individualized implant selection.
• Patients with complex anatomy and surgical teams adopting pre‑navigated workflows are most directly impacted, with implications for candidate selection and intraoperative roles.
• Expect targeted follow‑up studies to assess durability and operational planning to integrate pre‑navigated implant workflows into surgical programs.