4 models of knee joints with varying stages of wear and tear and knee replacement

Treatments

Total Knee Replacement Surgery

When surgery offers the most reliable route back to comfortable, confident movement, using the latest surgical techniques including robotic-assisted planning.

1-3 hours

Typical operation time

1-3 nights

Average hospital stay

6-12 weeks

Return to normal activity

about this treatment

Replacing the damaged joint surfaces to relieve pain and restore movement

Total knee replacement is one of the most reliable and successful operations in orthopaedic surgery. It involves removing the damaged cartilage and bone surfaces of the knee joint and replacing them with precision-engineered metal and plastic components. The result is a joint that moves smoothly with far less pain.

It is one of the most common and most successful elective surgical procedures performed in the UK. Mr Oni regularly performs this procedure, including complex cases, and has the experience to guide you through your options.

Mr oni examining the knee of an older female patient laying on an examination table in the surgeons consulting room

1-3 hours

Typical operation time

1-3 nights

Average hospital stay

6-12 weeks

Return to normal activity

is this right for me?

Who is knee replacement for?

Surgery is never the automatic answer. Knee replacement is usually considered when conservative treatments have been exhausted and the impact on your life is significant.

Not sure if you qualify?

Many patients come to Mr Oni uncertain whether their symptoms are "bad enough" for treatment. The answer always comes from a proper clinical assessment - not from a website. Book a consultation and Mr Oni will give you an honest view.

our approach

how mr oni helps

patient resources
Mr Oni with a female patient, pointing to an x-ray image of her hip joint on his computer screen.

01

Pre-operative plan

We review your X-rays and, where robotic surgery is used, a CT scan is taken beforehand to create a 3D model of your knee for precise implant planning.

Female patient looking to the left of the frame at Mr Oni who is slightly out of shot. She is smiling warmly.

02

Anaesthetic

Your anaesthetic options are discussed with you in advance so you are comfortable and informed before the procedure.

mr oni scrubbing up for surgery wearing a mask and black medical scrubs

03

The operation

The damaged joint surfaces are replaced with precision-fitted implants, using robotic assistance where appropriate.

mr oni shaking hands with a male patient in a blue shirt

04

Hospital stay

Most patients stay one to three nights, with physiotherapy beginning soon after surgery to support recovery.

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outcomes

benefits and outcomes

the benefits and outcomes that are typically expected with this treatment. giving you realistic expectations are important to ensure you go into any treatment fully informed.

lasting pain relief

The majority of patients report dramatic reduction in knee pain within weeks of surgery, with continued improvement over the following months.

restored mobility

Most patients return to walking, stairs, driving, and daily activities within six to twelve weeks. Many return to golf, swimming and cycling.

long lasting results

Modern implants are designed to last 15–20 years. The majority of patients will not need revision surgery within this timeframe.

better sleep

Night pain — one of the most disruptive symptoms of knee arthritis — typically resolves quickly after surgery, improving overall quality of life.

outcomes

recovery Timeline

Recovery varies between patients, but a general timeline gives you an idea of what to expect after your knee replacement.

Day 1

Physiotherapy begins, you will stand and walk short distances within hours, with pain managed with medication.

Weeks 2-3

Walking with a stick, managing stairs, most patients can drive at around 6 weeks, sometimes sooner in some cases.

Weeks 6-12

Most daily activities resumed, return to office work, light exercise, golf and cycling typically within this window.

Months 3-12

Continued improvement in strength and movement, most patients reach their best outcome at the one year mark.

Patient Stories

Hear from patients who have undergone investigations and treatments for their hip and knee problems with Mr Oni.

★ ★ ★ ★ ★

Mr Richard M.

Mr Oni explained everything clearly and the whole process was faultless. I was walking the corridors within two days and driving again in a fortnight. The scar is so neat you can hardly see it.

Treatment

Hip Replacement

★ ★ ★ ★ ★

Mr Robert F.

Mr Oni and the team were very professional throughout. The recovery was tough, but I stuck to the exercises and only needed over-the-counter painkillers. Two months on, I completed a nine-mile bike ride.

Treatment

Robotic Knee Replacement

★ ★ ★ ★ ★

Ms Liz.

Mr Oni and Libby are a really good team and made me feel completely comfortable. I'd been limping for a year, but almost marched into my follow-up. I've got my life back.

Treatment

Arthrosamid Injection

★ ★ ★ ★ ★

Mr Tony G.

Mr Oni gave me real confidence going into surgery, and I cannot fault my experience. I'm back to walking the dogs, gardening and farm work. The steep hills that once bothered me, now I don't even notice.

Treatment

Robotic Knee Replacement

★ ★ ★ ★ ★

Ms Zoe G.

Mr Oni and the team were incredibly supportive, kind and patient. I was walking with a frame the same day and dressing myself the next morning. Within two weeks I could pick my daughter up from school.

Treatment

Hip Replacement

★ ★ ★ ★ ★

Mr Ian F.

Mr Oni recommended the Arthrosamid injection and everything has been brilliant. Two weeks later I was rotovating the garden for two hours. It felt like some sort of miracle, I didn't notice I'd had bad knees.

Treatment

Arthrosamid Injection

YOU MAY ALSO WANT TO EXPLORE

Partial Knee Replacement Surgery

Resurfacing only the worn part of the knee to relieve pain and restore movement.

LEARN MORE
↗︎
Mr oni examining the knee of an older female patient laying on an examination table in the surgeons consulting room

YOU MAY ALSO WANT TO EXPLORE

Arthrosamid Injection for Knee Arthritis

A non-surgical injectable treatment for knee osteoarthritis that can provide lasting relief from joint pain.

LEARN MORE
↗︎
Mr Oni holding up a syringe of arthrosomid close to the camera

YOU MAY ALSO WANT TO EXPLORE

Knee Arthroscopy (Keyhole Knee Surgery)

Keyhole knee surgery to diagnose and treat mechanical problems such as a torn meniscus, a loose fragment, or a knee that locks or catches.

LEARN MORE
↗︎
Mr Oni with a male patient who is wearing a blue shirt. they are discussing knee treatment options looking at models of knee joints with varying degrees of knee replacement.

YOU MAY ALSO WANT TO EXPLORE

Robotic-Assisted Knee Replacement

Robotic-assisted knee replacement, planned and performed around your exact anatomy for greater precision.

LEARN MORE
↗︎
	The ROSA robotic knee surgery robot setup in an operating theatre.

Frequently asked questions

As with any major surgery there are risks to consider, which Mr Oni will discuss with you fully at consultation, including infection, blood clots and the lifespan of the implant. For most suitable patients the benefits significantly outweigh the risks.

Costs vary depending on your hospital and whether you are self-funding or using insurance. We can provide a clear, itemised quote at your consultation.

Most patients are able to return to driving at around six weeks, sometimes sooner. This is confirmed with you at follow-up.

Modern knee replacements are designed to last many years. The majority function well for 20 years or more.

Most patients return to low-impact activities such as golf, swimming and cycling within three to six months. Higher-impact sport is discussed individually with Mr Oni.

Yes. Physiotherapy is an important part of recovery, and you will be supported with a guided rehabilitation programme to rebuild strength and movement after your surgery.

locations

Mr Oni consults and operates at several leading private hospitals across the region, so you can choose the location most convenient for you.

Exterior Image of The Horder Centre Crowborough East Sussex

The Horder Centre

St John's Road
Crowborough
East Sussex
TN6 1XP

Exterior Image of the Nuffield Health Private Hospital in Tunbridge Wells

Nuffield Health

Kingswood Road
Tunbridge Wells
Kent
TN2 4UL

Exterior Image of the Vale Health Clinic in Tunbridge Wells, Kent

Vale Health Clinic

31-33 Vale Road
Tunbridge Wells
Kent
TN1 1BS

get in touch

Book your initial
consultation

See Mr Oni at The Horder Centre, The Nuffield Hospital or The Vale Health Clinic.

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Mr Oni walking with his practice manager in a hospital corridor
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