What to expect from robotic knee replacement surgery
Robotic knee replacement surgery is an increasingly popular option for patients with severe knee arthritis who have not found relief from conservative treatments. Many patients want to understand what makes this approach different and what their experience will be like.
In this article, a consultant orthopaedic surgeon outlines what to expect before, during, and after robotic-assisted knee surgery.
What is robotic knee replacement surgery?
Robotic knee replacement is a form of knee replacement surgery in which the surgeon uses advanced computer technology and a robotic arm to assist with the procedure.
The robotic system does not perform the operation independently. Instead, it enables detailed pre-operative planning and supports the surgeon in carrying out the procedure with a high degree of accuracy. This can help achieve more precise implant positioning and improved joint alignment.
Before surgery: preparation and planning
Preparation begins well before the day of surgery. Patients typically undergo a detailed assessment, including imaging such as a CT scan, to create a personalised surgical plan based on individual anatomy.
In the weeks leading up to robotic knee replacement surgery, patients may be advised to optimise general health, strengthen the muscles around the knee, and prepare the home environment for recovery. There will also be an opportunity to discuss the procedure, potential risks, and expected outcomes with the surgical team.
During the procedure: what happens in theatre
On the day of surgery, robotic-assisted knee replacement is usually performed under spinal or general anaesthesia.
During the procedure:
- The surgeon follows a personalised pre-operative plan.
- The robotic system provides real-time data and guidance.
- The surgeon controls the robotic arm to prepare the bone and position the implant.
This level of precision aims to optimise implant placement, which may contribute to improved function and longevity of the knee replacement.
After surgery: recovery and rehabilitation
Recovery after robotic knee replacement surgery is broadly similar to that of traditional knee replacement, although some patients may experience a smoother early recovery.
In the first few days:
- Patients are encouraged to stand and walk, often on the same day or the day after surgery.
- Physiotherapy begins early to restore movement and strength.
In the following weeks:
- Swelling and discomfort gradually improve.
- Mobility increases with regular exercise.
- Many patients return to normal daily activities within 6–12 weeks.
Full recovery, including strength and confidence in the knee, can take several months.
What are the potential benefits of robotic knee replacement?
Robotic knee replacement offers several potential advantages, including greater accuracy in implant positioning, improved joint alignment, and a more personalised surgical approach. These factors may contribute to improved outcomes; however, results also depend on patient-specific factors and adherence to rehabilitation.
Are there any risks of robotic knee replacement surgery?
Potential risks include infection, blood clots, stiffness, and ongoing pain. The overall risk profile is similar to that of conventional techniques.
A detailed consultation is essential to understand how these risks apply to each individual.
Robotic knee replacement surgery represents an important development in modern orthopaedics, offering a more precise and personalised approach to knee arthroplasty. While the technology is promising, successful outcomes depend on appropriate patient selection, surgical expertise, and commitment to rehabilitation.