Knee Treatments

Total knee
replacement.

The worn surfaces of the knee, replaced with a durable implant, for lasting relief from pain and stiffness.

3D render of a total knee replacement
The basics

What is a knee replacement?

Total knee replacement replaces the worn surfaces of the knee joint with a metal and plastic implant.

The damaged ends of the thigh bone and shin bone are resurfaced and capped with precision components, recreating a smooth, stable joint that moves without the bone-on-bone pain of advanced arthritis.

It is one of the most successful operations in orthopaedic surgery, with the majority of patients experiencing significant and long-lasting pain relief.

A patient journey

Expert care, made effortless

Scott's story: a clear plan, handled from start to finish, and a recovery that let him return to what matters most.

He went to great lengths to explain all that had taken place and answered all my questions, putting me at total ease. Patient via Doctify
Read Scott's full journey
Is this you?

Could a knee replacement help you?

Knee replacement is usually considered when pain and stiffness start to limit everyday life and non-surgical treatment is no longer enough. You might recognise:

  • Pain deep in the knee, made worse by walking, stairs, or standing
  • Stiffness and swelling, especially after rest or activity
  • A knee that gives way, grinds, or no longer straightens fully
  • Pain that disturbs your sleep, and activities you have quietly given up

Conditions that commonly lead to a knee replacement

  • Knee osteoarthritis
  • Rheumatoid arthritis
  • Post-traumatic arthritis
  • Meniscal damage
  • Cartilage injury
Patient education

Watch: understanding knee replacement

Treatment options

Matched to your knee

Not every knee needs a total replacement. Mr Kumar advises on the right approach for your pattern of wear.

Surgical

Total Knee Replacement

Replacing the worn surfaces of the knee with metal and plastic components for significant, long-lasting pain relief.

Surgical

Partial Knee Replacement

Where arthritis is confined to one part of the knee, a unicompartmental replacement preserves more of the natural knee and can allow a quicker recovery.

Robotic Surgery

Robotic Knee Replacement

Planning and executing your knee replacement with a level of accuracy not achievable by hand alone.

Read more
Non-Surgical

Knee Injections

Steroid, hyaluronic acid and PRP injections for knee osteoarthritis, meniscal pain and inflammatory conditions.

What the procedure involves

Worn surfaces, carefully replaced

The operation typically takes 60 to 90 minutes. Mr Kumar removes the damaged surfaces of the knee joint and replaces them with metal and plastic components. In robotic cases, the implant position is planned before surgery and executed with robotic guidance.

Knee replacement is most commonly performed under spinal anaesthetic. A nerve block to numb the knee area may also be used to reduce post-operative pain. This is discussed with you at your pre-operative assessment.

Physiotherapy begins early, often on the day of surgery. Walking with a frame or crutches is encouraged from the outset.
Close-up render of a knee replacement implant

On the day

  • Admitted on the day of surgery and prepared for theatre
  • Mr Kumar visits you, marks the correct leg, answers final questions
  • Spinal anaesthetic, often with a nerve block for comfort
  • Worn surfaces replaced, 60 to 90 minutes
  • Recovery room monitoring until you are awake and comfortable
  • Physiotherapy begins the same day, walking encouraged early
Recovery & outcomes

Recovery and what to expect

Recovery is a gradual, supported process. Physiotherapy begins early, often on the day of surgery, and is central to a strong recovery. Most patients are home within two to three days and build steadily from there.

15 to 20 yrs
Typical implant lifespan, often longer
2 to 3 days
Typical hospital stay
Large majority
of patients report lasting relief

Going home

Most patients go home 2 to 3 days after knee replacement. Mr Kumar's team ensures a physiotherapy programme is in place before you are discharged.

Week by week
  • Week 1 to 2Elevation, ice, gentle exercises and crutches.
  • Week 3 to 6Increasing walking, physiotherapy, and a driving assessment at 6 weeks.
  • Week 6Review with Mr Kumar.
  • Month 3Most daily activities resumed.
  • 12 monthsFull recovery. Most patients report significant, sustained pain relief.
Self-pay

The cost of a knee replacement

£12,000 to £15,000

Typical UK self-pay range, depending on hospital, implant, and individual factors.

See a full cost breakdown

A self-pay package usually includes

  • Hospital fees
  • Surgeon and anaesthetist fees
  • The implant
  • Your inpatient stay
  • Physiotherapy
  • Follow-up appointments
Questions

Knee replacement, answered

How long does a knee replacement last?

Most modern knee implants are designed to last fifteen to twenty years or more, depending on your activity level and weight. Many last considerably longer.

How long is the recovery?

Most patients are home within two to three days. Physiotherapy starts early, a driving assessment is usually possible around six weeks, most daily activities return by three months, and full recovery is expected for most by twelve months.

Is knee replacement surgery safe?

Knee replacement is one of the most successful operations in orthopaedic surgery. As with any surgery there are risks, and Mr Kumar will explain your individual risk profile clearly at consultation so you can make an informed decision.

When can I drive or return to work?

A driving assessment is usually possible around six weeks after surgery. When you return to work depends on your role and your recovery, and Mr Kumar will advise you at your review.

Will I be able to kneel again?

Kneeling can feel uncomfortable after a knee replacement for some patients, though many manage it in time. Mr Kumar will talk through what to expect for your activities and goals.

What is the difference between private and NHS?

Privately, you choose the timing of your surgery, you are seen quickly, and your care is led by Mr Kumar throughout. The operation itself follows the same evidence-based principles.

Can I have robotic surgery?

Yes. Mr Kumar offers robotic knee replacement and will discuss whether it suits your knee at consultation.

Your next step

Ready to talk about your knee?

Book a consultation with Mr Kumar to discuss whether a knee replacement is right for you. Most patients are seen within two weeks.

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