1. Preoperative planning
Imaging is used to create a patient-specific surgical plan when required by the system.
Robotic Knee Replacement
What does “robotic knee replacement” actually mean?
Robotic-assisted knee replacement uses computer-based planning and specialised technology to assist the surgeon during knee replacement surgery.
It is important to understand that the robot does not independently perform the operation.
The surgeon remains responsible for diagnosis, planning, bone preparation, implant selection, balancing and the final surgical decisions.
Why use robotic assistance?
Depending on the system and surgical technique, robotic assistance can provide:
- Detailed preoperative planning
- Three-dimensional assessment of the knee in selected systems
- Intraoperative information about bone anatomy and alignment
- Assistance with bone preparation
- Assistance with component positioning
- Quantitative assessment of the knee during surgery
The purpose is to provide additional information and surgical control during the procedure.
Is robotic knee replacement suitable for everyone?
No. Robotic assistance is a technology used during knee replacement, not a separate diagnosis.
A conventional instrumented knee replacement remains an established treatment option.
Does robotic surgery mean that the robot operates independently?
No. The surgeon performs the procedure.
The robotic system assists with planning and/or execution of specific parts of the operation according to the technology being used.
Clinical judgement remains essential because real knees are not simply mathematical models.
Is robotic knee replacement automatically better?
It is more accurate to think of robotic assistance as a tool that may offer technical advantages in selected situations.
Improved precision in component positioning does not automatically mean that every patient will experience a superior clinical outcome.
Therefore, the decision should focus first on whether knee replacement is appropriate, and then on whether robotic assistance adds meaningful value in that particular case.
What happens during robotic-assisted knee replacement?
The exact workflow depends on the robotic platform. In general, the process may involve:
2. Intraoperative registration
The patient’s anatomy is identified and matched to the surgical plan.
3. Surgical planning
The surgeon can assess planned bone resections, component positioning and alignment.
4. Bone preparation
The robotic system assists the surgeon with the planned bone preparation.
5. Implant positioning and balancing
The surgeon evaluates the knee and makes final decisions regarding component position and soft-tissue balance.
6. Implantation
The prosthetic components are implanted using the planned technique.
What are the benefits patients may hear about?
Potential technical advantages can include:
- More detailed planning
- Reproducible bone preparation
- Real-time intraoperative information
- Assistance with alignment and component positioning
However, these are technical capabilities, not guarantees of pain relief, faster recovery or longer implant survival.
What are the limitations?
Robotic systems:
- Add technology and cost
- Require appropriate training
- Depend on accurate registration and planning
- Do not eliminate surgical complications
- Do not replace clinical judgement
A well-planned conventional knee replacement can also provide excellent outcomes.
Frequently Asked Questions
Is robotic knee replacement actually robotic surgery?
It is robotic-assisted surgery. The surgeon remains in control.
Is robotic knee replacement less painful?
Pain after surgery depends on many factors. Robotic assistance should not be presented as a guarantee of less postoperative pain.
Is recovery always faster with robotic knee replacement?
Recovery depends on multiple surgical and patient factors. Robotic assistance does not guarantee faster recovery.
Is robotic knee replacement more expensive?
It may involve additional technology and hospital costs, depending on the system and centre.
Do I need robotic surgery if I have severe knee arthritis?
Not necessarily. The first question is whether knee replacement itself is appropriate. The surgical technology can then be discussed as part of the treatment plan.
Consultation
If you are considering knee replacement, the important first step is choosing the appropriate treatment for your knee.
Robotic assistance can then be discussed as one of the available surgical technologies where appropriate.
Book an Appointment
Dr. Anup A. Panda
Orthopaedic Knee, Foot & Ankle Surgeon
Diabetic Foot Specialist
Assistant Professor, Department of Orthopaedics, KIMS Bhubaneswar
