Frequently Asked Questions – Robotic Total Knee Replacement

Robotic technology can assist planning and precision in total knee replacement. These FAQs explain what robotic TKR is—and what it does and does not guarantee.

Answers below are for education and do not replace a personal orthopaedic consultation.

Robotic total knee replacement is a knee replacement procedure in which robotic technology assists the surgeon with preoperative planning and/or intraoperative bone preparation and implant positioning.

No. The orthopaedic surgeon performs the operation. The robotic system is a surgical assistance and planning technology used under the surgeon's control.

Robotic assistance can improve planning and the accuracy of certain surgical steps, but current evidence does not establish that robotic TKR provides superior short-term functional outcomes or fewer complications for every patient.

Potential advantages include detailed preoperative planning, accurate bone preparation, implant positioning and real-time information that can assist the surgeon in balancing and aligning the knee.

Robotic systems can improve the accuracy and consistency of certain aspects of bone cuts and implant positioning. However, accurate positioning is only one component of a successful knee replacement.

Not necessarily. The suitability of robotic assistance depends on the patient's arthritis, deformity, anatomy, previous surgery, implant plan and the surgeon's preferred technology.

Some robotic systems use a preoperative CT scan to create a three-dimensional surgical plan, while other systems use different technologies. The imaging requirement depends on the robotic platform being used.

Some studies have reported differences in early postoperative recovery, but the overall evidence does not establish that robotic TKR consistently produces superior pain or functional outcomes for every patient.

Not necessarily. The size of the incision depends on the surgical technique, patient's anatomy and other factors. Robotic assistance does not automatically mean a smaller incision.

The effect on blood loss can vary depending on the technique and robotic system. Robotic assistance should not be promoted as a guaranteed blood-loss reduction.

Both robotic-assisted and conventional TKR are established surgical approaches. Current AAOS guidance does not show a significant short-term difference in complications between the two approaches.

There is not enough evidence to claim that robotic assistance automatically makes every knee replacement last longer. Long-term implant survival depends on many factors, including implant choice, alignment, bone quality, patient activity and surgical technique.

Robotic systems can assist with planning and execution in many deformity cases, but suitability depends on the severity and type of deformity and the surgeon's assessment.

Age alone does not determine whether robotic TKR is appropriate. The decision should be based on the severity of arthritis, symptoms, activity requirements, anatomy and expected benefits.

Robotic surgery may involve additional technology, planning and equipment costs. The total cost varies between hospitals and robotic systems.

The operative time varies with the surgeon, technology, patient's anatomy and complexity of the knee. Robotic assistance does not necessarily mean that surgery will take longer or shorter in every case.

As with conventional TKR, many patients are encouraged to begin mobilisation soon after surgery. Walking progression depends on pain control, strength, balance and medical factors.

Yes. Robotic technology does not replace rehabilitation. Strengthening, range-of-motion exercises, walking practice and functional rehabilitation remain important.

No. Robotic technology can assist with surgical planning and precision, but no surgical technology can guarantee a particular outcome. Patient selection, surgical expertise, rehabilitation and individual healing all influence results.

The best approach depends on your individual knee condition and the surgeon's assessment. Robotic assistance is a tool; the more important question is whether the overall surgical plan is appropriate for your knee and goals.

If knee pain, instability or swelling is affecting your daily life, book a consultation with Dr. Tushar Nayak for a personalised assessment and treatment plan.