Advanced Knee Replacement Surgery at King Edward VII’s Hospital, Chelsea Private Care
The decision to proceed with knee replacement surgery is never a small decision. For many patients, it follows years of pain, restricted movement and a gradual loss of independence. When knee pain begins to affect sleep, walking and day-to-day activities, surgery may offer the opportunity to regain mobility and quality of life.
Mr Sivan Sivaloganathan specialises in advanced and robotic complex knee replacement surgery, supporting patients with both straightforward and highly complex knee conditions. Treatment is personalised, evidence-based and focused on achieving durable, long-term outcomes.
Understanding Knee Replacement Surgery – From Standard to Complex Cases
Knee replacement surgery is most commonly recommended when severe osteoarthritis leads to “bone on bone” contact within the joint. This causes persistent pain, stiffness and reduced function that does not respond to non-operative treatments such as physiotherapy, injections or medication.
When non-surgical options have been exhausted and pain continues to limit daily life, knee replacement surgery can help restore mobility and relieve pain. Many patients consider surgery when they struggle to walk distances, climb stairs or sleep comfortably at night.
In such cases, specialists may assess suitability for advanced knee reconstruction to improve joint function, stability, and long-term outcomes.
Types of Knee Replacement Offered
Treatment options are selected based on the pattern and severity of joint damage:
- Robotic Total Knee Replacement (TKR) for widespread arthritis affecting the entire knee
- Robotic Partial Knee Replacement when disease is limited to a single compartment
Robotic Complex Knee Replacement for challenging or atypical cases
What Makes a Knee Replacement “Complex”?
Standard knee replacements are typically performed for primary osteoarthritis with stable ligaments and predictable anatomy. Complex knee replacement surgery is required when additional challenges are present, such as:
- Inflammatory arthritis causing joint instability
- Severe deformities or abnormal alignment
- Bone loss or poor bone quality
- Revision surgery following a previous knee replacement
- Failed prior operations
- Pre-existing metalwork or unusual anatomy
Complex cases require advanced planning, specialist training and a high level of surgical experience. Every knee is unique, and treatment plans must be tailored accordingly. If your case is complicated, it is especially important to be treated by a surgeon who regularly manages complex knee replacements.
Mr Sivaloganathan is a dual fellowship-trained robotic knee replacement surgeon. Surgeons from around the world visit through the Global Visiting Surgeon Programme to observe his operative technique, and he is widely published and internationally recognised for personalised knee replacement surgery.
The Knee Replacement Process & What Sets Advanced Surgery Apart
Comprehensive Pre-Operative Assessment
Before surgery, a detailed assessment is performed to understand joint mechanics, alignment and bone quality. Advanced imaging and biomechanical analysis are used to plan surgery precisely.
This thorough preoperative planning is especially important in minimally invasive knee surgery, where precision and accuracy are critical to achieving optimal outcomes.
During the operation, the knee joint is recreated on a virtual screen in real time. This allows the implant to be planned, sized and positioned accurately before any bone is cut. Surgical decisions are guided by real-time data, enabling a personalised approach to alignment and balance.
Patients are given a clear explanation of the procedure, implant choice and realistic expectations for recovery and outcome.
The Surgical Procedure
Knee replacement surgery typically takes one to two hours and is performed under general or spinal anaesthesia. For complex cases, additional techniques may be required, including bone grafting, ligament reconstruction, augments or custom implants.
Hospital stay is usually between one and three days, depending on recovery progress and individual needs.
Cutting-Edge Techniques for Complex Cases
Advanced robotic techniques allow restoration of native knee alignment for a more natural post-operative feel. Soft tissue disruption is minimised, and implant selection is guided by evidence-based research to maximise longevity.
Real-time feedback during surgery ensures the knee is well balanced, stable and aligned and this is particularly important in complex or revision cases.
Recovery & Expected Outcomes
Physiotherapist begins immediately after surgery, with most patients standing and walking with assistance within 24 hours. Rehabilitation focuses on restoring movement, strength and confidence.
Patients can expect gradual improvement over the following weeks and months, with many returning to activities they enjoy. Implant longevity is typically 15–20 years or longer for most patients.
While complex cases may require a longer recovery period, the potential improvement in pain, mobility and quality of life is often life-changing.
Key Benefits of Advanced Knee Replacement
- Significant pain relief and improved quality of life
- Restored ability to walk, climb stairs and remain active
- Personalised surgical planning for optimal outcomes
- Expert management of complex cases that may be unsuitable for standard surgery
Why Choose Mr Sivan Sivaloganathan for Your Knee Replacement
Mr Sivaloganathan is a Consultant Orthopaedic Surgeon and a Specialist in Robotic Knee Surgery one of only a few surgeons in the UK at the forefront of robot-assisted surgery. Mr Sivaloganathan is globally recognised and is part of the global Visiting Surgeon Programme (VSP) where surgeons from across the globe travel to observe his cutting-edge operative technique.
Mr Sivaloganathan read medicine at Imperial College, London, before serving with the British Army as a Medical Officer. Having deployed on an operational tour of Afghanistan, for which he was awarded the Herrick medal with clasp and the NATO medal in service of peace and freedom, he completed an MSc in Nanotechnology and Regenerative Medicine at University College, London. Mr Sivaloganathan completed his Orthopaedic training in Southwest London before undertaking competitive fellowships, including the prestigious Complex Hip and Knee unit in Montreal, Canada, and in Robot-assisted Complex Knee and Complex Trauma at Imperial College Healthcare Trust.
Mr Sivaloganathan’s specialist interests are in all areas of knee replacement surgery, particularly complex and robot-assisted. He is experienced in advanced robotic knee replacement surgery in both partial and total knee arthroplasty. Mr Sivaloganathan also undertakes knee arthroscopy to treat knee pain and mechanical symptoms. Mr Sivaloganathan brings a wealth of experience in managing early knee arthritis through a holistic approach.
Mr Sivaloganathan’s extensive research portfolio focuses on personalised knee replacements that preserve the native alignments to give the patient a more natural feeling of the knee post-surgery. Invited as faculty to many international symposiums, Mr Sivaloganathan has attended as an expert speaker across the globe, leading the development of robot-assisted surgery and personalised knee replacements.
Patients benefit from continuous care, from initial consultation through surgery and rehabilitation. If complications arise, they are managed by a surgeon who specialises in complex cases and long-term joint outcomes.
Consultations are available in Marylebone, Chelsea and Richmond/Chiswick, with flexible appointments Monday to Saturday from 8am to 8pm. Facilities are modern, accessible and inclusive, with on-site parking and full accessibility features.
Book a Knee Replacement Consultation
If knee pain is limiting your independence or quality of life, a specialist assessment can help determine whether knee replacement surgery is the right next step.
Book your expert consultation today.
Email: abigail.ballard@medicineinmotion.info
Telephone: (+44) 7823 701873
Knee Replacement FAQs
What is the difference between standard and complex knee replacement ?
Complex knee replacement can include an unstable native knee caused by soft tissue laxity, bone loss, significant deformity or in situ metal work which may require the use of advanced implants and augments to tackle the challenges. A standard knee replacement relies on your soft tissue to stabilise your knee. Both benefit from a personalised approach with advanced technology to achieve reproducible results.
Who is a candidate for knee replacement surgery ?
Patients with severe knee pain and bone on bone arthritis have the best outcomes following knee replacement surgery.
How does Mr Sivaloganathan personalise knee replacements?
Personalised knee replacements are achieved by respecting the native anatomy of the patient, and understanding about safe zones and the implication of a concept known as quadriceps malalignment. The use of robot-assisted surgery allows Mr Sivaloganathan to create a virtual image of your knee and decide how best to restore your damaged knee.
What experience does Mr Sivaloganathan have in complex knee replacements?
Mr Sivaloganathan has completed fellowships in complex knee units in Montreal and at Imperial College, MrSivaloganathan focuses on all areas of knee replacement, including complex and robot-assisted procedures. Mr Sivaloganathan has an extensive research portfolio on special techniques and the management of complex cases.