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Expert Knee & Hip Replacement Surgery in Sussex
James Lewis Orthopaedic Surgeon is a leading provider of advanced knee and hip replacement surgery, specialising in minimally invasive techniques and customised solutions. With over 17 years of experience, we utilise cutting-edge technology, including patient-specific implants derived from CT scans, to deliver exceptional outcomes. Our award-winning enhanced recovery programme ensures minimal hospital stays and rapid rehabilitation, supported by a dedicated team committed to excellence.

Backed by top 1% national performance metrics and an infection-free record, we prioritise precision, patient education, and holistic care. Our philosophy centres on restoring quality of life through tailored approaches, combining surgical expertise with compassionate support to address individual needs and exceed expectations.
Services
Total Knee Replacement Partial Knee Replacement Hip Replacement Arthroscopy Patello-Femoral Resurfacing Tibial Tubercle Transfer
Highlights and features
  • We offer Conformis custom knee replacements with proven superior satisfaction and natural motion.
  • Our enhanced recovery programme achieves top 1% national length-of-stay outcomes.
  • 0% infection rate and 0% blood transfusion rate for knee surgery.
  • Muscle-preserving hip replacement techniques with 100% patient recommendation rate.
  • Award-winning outcomes with 26.07 Oxford Hip score improvement, ranking in top 0.02% nationally.
What people say
No pain after surgery Rapid recovery Restored quality of life Highly recommend Natural knee feel
Services
Custom Total Knee Replacement
Using CT scans, this procedure creates a patient-specific implant for precise fit and natural movement. It reduces recovery time and improves satisfaction compared to standard replacements. Ideal for severe arthritis, it restores strength and mobility with a 46 week recovery period.
Minimally Invasive Hip Replacement
This technique avoids cutting muscles, ensuring faster recovery and reduced pain. Geometric precision replicates natural hip alignment, with 98% patient-reported equal leg length. Most patients walk unaided within two weeks, achieving full mobility in six weeks.
Partial Knee Resurfacing
Targets isolated knee arthritis by replacing only the damaged section. Preserves ligaments and healthy tissue, enabling quicker recovery. Suitable for 1 in 3 arthritis patients, with return to light activity within weeks.
Arthroscopy
Minimally invasive procedure to diagnose and treat cartilage tears, ligament damage, and arthritis. Uses small incisions and a camera for precision, with most patients resuming normal activities within days.
Patello-Femoral Resurfacing
Resurfaces the back of the kneecap for arthritis sufferers, preserving surrounding tissue. Alleviates front-of-knee pain and improves mobility, particularly effective for maltracking issues and weight-bearing discomfort.
People
James Lewis
Consultant Orthopaedic Surgeon
Mr Lewis is a leading orthopaedic surgeon with 17 years of experience in knee and hip replacements. He pioneered an award-winning enhanced recovery programme and holds expertise in custom implants and minimally invasive techniques. His outcomes rank in the top 0.02% nationally for hip replacements.
Questions
What makes Conformis knee replacements unique?
Conformis implants are custom-made from CT scans, offering precise fit and natural motion unmatched by standard implants.
How long does recovery take after hip replacement?
Most patients walk without aids within 2 weeks and resume normal activities within 6 weeks.
Are custom knee replacements available on the NHS?
No, Conformis replacements are currently self-funded but may be covered by private insurance.
What is the infection rate for your surgeries?
We maintain a 0% infection rate for knee and hip replacements through rigorous protocols.
How are leg lengths matched during hip replacement?
A millimetre ruler is used intraoperatively to ensure leg lengths differ by no more than 2mm.