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Robotic
Knee
Replacement
Precision-guided robotic technology delivers sub-millimetre accuracy for a more natural feel, faster recovery, and longer-lasting outcomes in knee replacement surgery.
What is Robotic Knee Replacement?
Robotic knee replacement — also called robotic-assisted total knee arthroplasty — is an advanced surgical technique where a surgeon uses a robotic system to assist in planning and executing knee surgery with exceptional precision.
Unlike traditional surgery, the robotic system creates a 3D model of your unique joint anatomy before the operation. This personalised planning helps ensure implant placement is tailored precisely to your bone structure.
The robot does not operate independently. Your orthopaedic surgeon remains fully in control at all times while using the robotic arm as an intelligent tool for greater consistency and surgical accuracy.
Key Components Addressed
Femoral Component
Metal cap placed over the end of the thigh bone.
Tibial Component
Metal tray fixed securely to the shin bone.
Polyethylene Insert
Smooth spacer designed for frictionless movement.
Patellar Component
Resurfaced kneecap component when required.
Robotic Haptic Boundary
Pre-set surgical zone helping prevent bone removal errors.
Understanding the Procedure
What is Robotic Knee Replacement?
Robotic knee replacement — also called robotic-assisted total knee arthroplasty (TKA) — is an advanced surgical technique where a surgeon uses a robotic system to assist in planning and executing knee surgery with exceptional precision.
Unlike traditional surgery, the robotic system creates a 3D model of your unique joint anatomy before the operation. The surgeon then uses this personalised plan to guide the robotic arm during surgery, ensuring implant placement is tailored precisely to your bone structure.
The robot does not operate independently — your orthopaedic surgeon remains fully in control at all times, using the robotic arm as an intelligent tool for greater consistency and accuracy than is possible with the human hand alone
✦ Surgeon-Controlled · AI-Assisted · Patient-Specific
Key Components Addressed
Femoral Component
Metal cap placed over end of thigh bone
Tibial Component
Metal tray fixed to top of shin bone
Polyethylene Insert
Smooth plastic spacer for frictionless motion
Patellar Component
Resurfaced kneecap (when required)
Robotic Haptic Boundary
Pre-set surgical zone preventing bone removal errors
✦ Surgeon-Controlled · AI-Assisted · Patient-Specific
How the Procedure Works
Pre-Operative CT Scan
A detailed CT scan of your knee is taken weeks before surgery. This scan creates a precise 3D virtual model of your unique bone anatomy for surgical planning.
Personalised Surgical Plan
Your surgeon uses the 3D model to plan implant size, positioning, and alignment digitally — tailored to your specific anatomy before you enter the operating theatre.
Robotic-Assisted Surgery
During surgery, sensors track bone movement in real time. The robotic arm guides the surgeon within the pre-set haptic boundary, ensuring millimetre-perfect bone cuts.
Implant & Recovery
The precisely positioned implant is secured and soft tissues are balanced. Patients typically walk within 24 hours and begin physiotherapy the same day.
Advantages Over Traditional Surgery
Superior Accuracy
Robotic guidance achieves sub-millimetre implant placement, far exceeding what is manually possible, reducing the risk of malalignment.
Less Pain & Blood Loss
Smaller, more controlled bone cuts mean reduced trauma to surrounding tissues, resulting in less post-operative pain and blood loss.
Faster Recovery
Patients walk sooner, go home faster, and return to daily activities weeks earlier than with conventional knee replacement.
Longer Implant Life
Correct alignment distributes load evenly across the implant, significantly reducing wear and extending the life of the prosthesis.
More Natural Feel
Patient-specific balancing of ligaments and soft tissue alignment results in a knee that moves and feels more like your natural joint.
| Parameter | Robotic | Traditional |
|---|---|---|
| Implant Accuracy | ±0.5 mm | ±2–3 mm |
| Pre-op 3D Planning | ✓ Yes | ✗ No |
| Blood Loss | Minimal | Moderate |
| Clinic Stay | 3–4 days | 5–7 days |
| Risk of Malalignment | Very Low | Higher |
| Ligament Balancing | Real-time | Manual estimate |
| Implant Longevity | 20–25 years | 15–20 years |
| Patient Satisfaction | 96% | 85% |
Who Is a Good Candidate?
Severe Knee Arthritis
Patients with end-stage osteoarthritis, rheumatoid arthritis, or post-traumatic arthritis causing severe joint degeneration, pain, and stiffness.
Chronic Pain & Disability
Those experiencing persistent knee pain that significantly limits walking, climbing stairs, or daily activities, even after non-surgical treatments.
Failed Conservative Treatment
Patients who have not responded adequately to physiotherapy, anti-inflammatory medications, injections, or assistive devices.
Significant Deformity
Individuals with bow-leg (varus) or knock-knee (valgus) deformities where precise correction is critical for functional outcomes.
Revision Surgery Candidates
Patients requiring revision of a previously implanted knee replacement can often benefit from the precision of robotic-assisted techniques.
Active Lifestyle Goals
Patients with high functional demands who want to return to an active lifestyle, walking, swimming, cycling, or low-impact sports.
Your Recovery Journey
First Steps
Most patients stand and take first steps with a walker within 12–24 hours of surgery. A physiotherapist begins supervised walking and gentle range-of-motion exercises.
Clinic Discharge
Most robotic knee replacement patients are discharged home, often moving to a walker or cane. Wound care and oral pain management instructions are provided.
Active Rehabilitation
Regular outpatient physiotherapy sessions focus on restoring strength, flexibility, and balance. Swelling reduces significantly. Most patients manage stairs independently by week 4–6.
Return to Daily Life
Most patients resume driving, light work, and everyday activities. The knee continues to feel more natural and comfortable as muscles and soft tissue heal.
Full Recovery
Complete recovery with minimal swelling and full functional capacity. Patients can typically resume low-impact sports like swimming, cycling, and golf. Annual follow-ups are recommended.