The Jdot PointCloud Knee Instrument (PKI) is a personalized surgical instrument to assist surgeons in implant positioning during total knee replacement surgery based on the pre-op plan from the Vault System. It's a customized single-use drill and saw guide for marking or cutting bone. Made of bio-compatible plastics, the PKI is machined from a solid plastic material unlike powder 3D printing, and is steam autoclavable. The PKI is current available in China and the USA for total knee replacement procedures.