What is robotic-assisted knee replacement?

In traditional knee replacement surgery, the surgeon uses manual instruments to cut bone and position the knee implant using guides, measurements and experience. While highly effective, the precision of this approach can be limited by variation in each patient’s anatomy and soft tissues.

The ROSA Knee System enhances the surgical process by using real-time data, sensors, and robotic assistance during the procedure. Think of it as a “GPS for your knee replacement” — it helps the surgeon track, measure and execute each step with a high level of accuracy. It does not perform the surgery on its own — your surgeon remains completely in control — but it provides advanced guidance and feedback throughout the operation.

This can improve the positioning, balancing and alignment of the implant, potentially leading to a more natural-feeling and longer-lasting result.

Imageless technology — no extra scans required
One of the standout features of the ROSA system at Sussex Premier Health is that it uses imageless technology. This means:

– No pre-operative CT or MRI scans are needed
– No extra hospital visits for imaging
– No additional radiation exposure
– A simpler, faster, and more convenient surgical pathway

Instead of using pre-surgical scans to create a 3D model of your knee, the ROSA system builds the model during surgery using advanced sensors and mapping technology. This ensures the robotic system has all the necessary information to assist with precision — without requiring any extra steps for you.

What is personalised alignment?

One of the key innovations in modern knee replacement is moving away from a one-size-fits-all approach. Personalised alignment means we aim to match the position of your knee replacement to your natural anatomy — rather than forcing it into a generic ‘textbook’ position.

Everyone’s knee is different. Your ligaments, joint angles and soft tissue balance are all unique. With personalised alignment, we use the data gathered during surgery to adjust how the implant is positioned — so that it best matches how your knee is built.

This approach can help:
– Improve the natural feel of the new joint
– Reduce the sense of stiffness or unnatural movement
– Optimise soft tissue balance
– Potentially improve long-term function and satisfaction

What are the benefits for you?

Robotic-assisted total knee replacement using ROSA with personalised alignment offers several key advantages:

• No need for pre-operative CT or MRI scans
• High-precision implant positioning based on real-time measurements
• Better soft tissue balancing, which may reduce pain and improve movement
• More natural joint feel, tailored to your anatomy
• Less disruption to muscles and ligaments
• Potentially faster recovery and shorter hospital stay
• Improved long-term function and durability

These benefits are supported by growing research and are now increasingly standard practice in specialist orthopaedic centres worldwide.

At Sussex Premier Health, our surgeons combine modern technology with extensive experience in knee replacement surgery. By offering robotic-assisted, imageless, and personalised total knee replacement, we aim to deliver the highest standard of care available today — right here in Sussex.

You will benefit from:
– A specialist orthopaedic surgical team
– Modern surgical facilities and enhanced recovery pathways
– On-site physiotherapy and post-operative support
– A caring, patient-centred approach focused on long-term outcomes

Is robotic knee replacement right for me?

If you have painful, stiff or worn-out knees due to arthritis or injury, and your symptoms are interfering with your everyday life, it may be time to consider surgery. A consultation with one of our knee specialists can help determine if robotic-assisted, personalised total knee replacement is the right option for you.