Smart Knees Are Here, Autonomous Ones Are Next
Knee replacement is the joint operation patients are least sure about, with 15% to 20% reporting some dissatisfaction.
Stanford Medicine surgeons say a new layer of technology is now aimed at that gap.
The robot is already in the room
Stanford surgeons use a robotic assistant that keeps the cutting blade within bounds set by a pre-surgery 3D model.
It also measures ligament tension so the new parts sit at angles as natural as possible.
Jason Lipof expects semiautonomous robots to help perform knee replacement within a year or two of the article’s August 31, 2026 publication, with fully autonomous ones likely to follow.
That is one surgeon’s forecast, and the article cites no trial behind the timeline.
The knee that tracks itself
In March 2026, Lipof became the first Stanford Medicine surgeon to implant a smart knee.
Its sensor reports step count, range of motion, and walking stride to the surgeon, the patient, and the physical therapist.
What stays unsolved
Infection still affects 1% to 2% of joints, and neither robots nor sensors change that.
Readers tracking which surgical technologies have actually reached the operating room can find them in The 2026 Surgical Technology Intelligence Report.
