Specialty: consultant orthopaedic surgeon working exclusively on the knee, with particular expertise in sports injuries and the treatment of the degenerative knee
Conditions seen: knee pain, knee injuries, meniscal tears, anterior cruciate ligament (ACL) injuries, ligament damage, cartilage injuries, patella instability and dislocations, unstable knee, knee arthritis and osteoarthritis, clicking joints, hypermobility, alignment issues
Tests, treatments and procedures: knee arthroscopy and arthroscopic surgery, ACL reconstruction, posterior cruciate ligament reconstruction, lateral collateral ligament reconstruction, postero-lateral corner reconstruction, meniscus repair and meniscal surgery, patella stabilisation surgery, joint preservation surgery, osteotomy surgery, microfracture surgery, osteochondral autograft transfer, partial and total knee replacement, open reduction with fixation, ultrasound-guided injections, hyaluronic acid injections (viscosupplementation), platelet-rich plasma (PRP) injections, Arthrosamid for knee osteoarthritis
Often consulted by patients with: a sports-related knee injury, a suspected ACL or meniscal tear, a kneecap that dislocates or a knee that feels unstable, or knee arthritis being considered for joint preservation or knee replacement
Patient ages seen: 8+
Also: Founding partner of Welbeck Orthopaedics and Chair of Orthopaedics at Welbeck; runs a sub-specialist clinic in patellofemoral instability and complex sports injuries that takes tertiary referrals from other knee surgeons
Language: English
Mr Deepu Sethi is a consultant orthopaedic surgeon at Welbeck's Orthopaedics centre in London, specialising exclusively in knee conditions, with particular expertise in sports injuries and degenerative knee conditions. He assesses and treats knee pain, meniscal tears, anterior cruciate ligament (ACL) injuries and other ligament damage, cartilage injuries, patellar instability and dislocations. He also treats knee arthritis, including osteoarthritis, as well as clicking joints, hypermobility, knee instability and alignment problems.
Mr Sethi offers a range of treatments for knee conditions, from non-surgical options to complex reconstructive surgery and joint replacement. Non-surgical treatments include ultrasound-guided injections such as hyaluronic acid (viscosupplementation), platelet-rich plasma (PRP), and Arthrosamid for knee osteoarthritis.
His surgical practice centres on complex ligament repair and reconstruction, including ACL reconstruction, which involves replacing a torn ligament with a graft, and procedures to repair or reconstruct other ligaments that stabilise the knee. He also performs knee arthroscopy (keyhole surgery), meniscus repair and patellar stabilisation surgery for recurrent kneecap dislocations. Where appropriate, he offers joint-preserving procedures, including osteotomy to redistribute weight away from damaged areas of the knee and cartilage repair techniques such as microfracture and osteochondral autograft transfer. For more advanced knee arthritis, he performs partial and total knee replacement.
As a founding partner of Welbeck Orthopaedics, Mr Sethi currently serves as chair of orthopaedics at Welbeck. He runs a specialist clinic for patellofemoral instability and complex sports injuries, receiving referrals from other knee surgeons in the region. Within the NHS, he established a dedicated knee service and served as its lead surgeon.
After qualifying at University College London Medical School, Mr Sethi completed specialist orthopaedic training in Oswestry and Birmingham, followed by fellowships in the UK focusing on sports injuries and joint replacement surgery, and in Australia specialising in knee sports injuries. A fourth-generation doctor, he takes a personalised, patient-centred approach to treatment.
Mr Sethi qualified at University College London Medical School and completed his specialist orthopaedic training at Oswestry and Birmingham. He then completed specialist fellowship training in the UK, focusing on sports injuries and joint replacement surgery, and further specialist fellowship training in Australia to pursue his interest in knee sports injuries.
Mr Sethi is actively involved in research, with a particular focus on evaluating surgical outcomes and improving techniques in knee surgery. He systematically collects and reviews data on the results of his operations, using these findings to assess and refine his surgical approach over time.
He also contributes to patient education and has authored Welbeck articles exploring ACL injuries in women, knee injuries in children and young people, and the prevention and treatment of skiing-related knee injuries.
Royal College of Surgeons of England
British Orthopaedic Association
British Association for Surgery of the Knee
British Orthopaedic Sports Trauma and Arthroscopy Association
The Royal Society of Medicine
Appointments are available at 1 Welbeck Street, London W1G 0AR.
Enquire online or call 020 3653 2002.
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This article explores the rising rate of knee injuries in children and young people, examining key causes like intense early sports participation and offering expert-backed strategies for prevention and long-term joint health.
This article looks at the rising number of ACL injuries in women, particularly elite athletes, and explores the possible reasons behind this surge, along with the serious recovery demands of such injuries.
For many, this time of year brings with it the excitement of winter sports such as skiing and snowboarding. However, if you’re not properly prepared for these activities, you’re at risk of suffering painful and debilitating injuries.
For many, this time of year brings with it the excitement of winter sports such as skiing and snowboarding. However, if you’re not properly prepared for these activities, you’re at risk of suffering painful and debilitating injuries.
This article explores the rising rate of knee injuries in children and young people, examining key causes like intense early sports participation and offering expert-backed strategies for prevention and long-term joint health.
This article looks at the rising number of ACL injuries in women, particularly elite athletes, and explores the possible reasons behind this surge, along with the serious recovery demands of such injuries.
Mr Sethi specialises exclusively in knee conditions, particularly sports injuries and degenerative knee problems. He assesses and treats knee pain, meniscal tears, ACL injuries and other ligament damage, cartilage injuries, patellar instability and dislocations, and knee arthritis, including osteoarthritis. He also sees patients with knee instability, clicking joints and alignment problems.
Mr Sethi has extensive expertise in assessing and treating ACL injuries and can recommend the most appropriate treatment based on the severity of your injury, symptoms and activity levels. Some injuries can be managed with physiotherapy to strengthen the muscles around the knee and improve stability. If your ACL is torn and your knee remains unstable, or you want to return to sports involving twisting and sudden changes of direction, surgery may be recommended. Mr Sethi specialises in ACL reconstruction, which involves replacing the torn ligament with a graft to restore knee stability.
Yes. Depending on the extent of your arthritis, Mr Sethi may recommend non-surgical treatments or joint-preserving surgery to help maintain your natural knee. Options include injections such as hyaluronic acid, platelet-rich plasma (PRP) and Arthrosamid, as well as procedures such as osteotomy to redistribute weight across the joint. For more advanced arthritis, partial or total knee replacement may be recommended.
Yes. Mr Sethi runs a specialist clinic for patellofemoral instability and complex sports injuries, providing a tertiary referral service for patients with knee problems requiring specialist assessment. He regularly receives referrals from other knee surgeons across the region.
Yes. Mr Sethi sees children aged 8 and over and can assess knee injuries in children and young people, including sports-related injuries. He has also contributed to patient information articles about knee injuries in younger patients.