Robotic Total Knee Replacement

What is Robotic Knee Replacement?

Robotic-assisted knee replacement is a technique that uses computer planning and a robotic system to assist the surgeon in performing a knee replacement with a high degree of precision. It is not a robot operating independently — the surgeon plans and performs the operation, with the technology providing detailed information and assisting with accuracy. It can be applied to both total and partial knee replacement.

The aim of the technology is to support accurate implant positioning and alignment, which are important factors in how a knee replacement functions and how long it lasts.

How it Works

Robotic systems vary, but the general principles include:

• Planning: a detailed three-dimensional model of the knee is created — either from a pre-operative scan or generated during surgery — and used to plan implant size and position.
• Intra-operative mapping: the specific anatomy and soft-tissue balance of the knee are assessed during the procedure.
• Assisted execution: the robotic system assists the surgeon in making precise bone cuts and positioning the implants according to the plan.

The surgeon remains in control throughout, using the technology as a tool to execute the surgical plan accurately.

Potential Benefits

The intended advantages of robotic assistance include:

• Precise implant positioning and alignment
• Accurate, individualised surgical planning
• Assessment and balancing of the soft tissues around the knee
• Consistency in executing the surgical plan

It is worth noting that robotic assistance is a tool to support the surgeon, and good outcomes in knee replacement depend on many factors including surgical experience, patient selection, and rehabilitation. Not all patients require robotic assistance, and the most appropriate approach will be discussed at your consultation.

The Procedure and Recovery

From the patient’s perspective, a robotic-assisted knee replacement is similar to a conventional knee replacement in terms of the operation itself and the recovery that follows. Surgery is performed under spinal or general anaesthesia. Recovery follows the same general path as standard knee replacement, with a structured rehabilitation programme tailored to your progress.

Risks and Complications

The risks are broadly those of knee replacement in general, including:

• Infection
• Blood clots (deep vein thrombosis or pulmonary embolism)
• Bleeding
• Stiffness
• Ongoing pain
• Implant loosening or wear over time
• Injury to adjacent nerves or blood vessels

All relevant risks will be discussed in detail at your consultation.

Frequently Asked Questions

Does a robot perform the surgery?

No. The surgeon plans and performs the operation. The robotic system is a tool that provides detailed information and assists with precise bone cuts and implant positioning, but the surgeon remains in control throughout.

Is robotic knee replacement better than conventional surgery?

Robotic assistance is designed to improve the precision of implant positioning and alignment. Outcomes in knee replacement depend on many factors beyond the technology, including surgical experience, patient selection, and rehabilitation. Whether robotic assistance is appropriate for you will be discussed at your consultation.

Is the recovery different?

For the patient, the recovery is broadly similar to that of a conventional knee replacement, with the same general rehabilitation process tailored to your individual progress.

Medical Disclaimer
The information on this page is intended as general patient education and does not constitute medical advice. Every patient is different, and treatment decisions should always be made in consultation with a qualified medical professional based on your individual circumstances, health history, and imaging. Outcomes from surgery vary between patients and cannot be guaranteed. If you have concerns about your knee health or are considering surgery, please contact Dr Slattery’s rooms to arrange a consultation.