Total Knee replacement

Why is a Knee Replacement Performed?

The most common reason to have a knee joint replaced is to relieve pain from severe arthritis that is limiting your activities.

You may be recommended a knee replacement for these problems:

  • You can’t sleep through the night because of knee pain
  • Your knee pain has not improved with other treatments (e.g. painkillers, physiotherapy)
  • Your walking distance is severely limited
  • Your knee pain limits or prevents you from doing your normal activities, such as bathing, preparing meals, doing household chores, and walking.
  • The Oxford Knee Score is a very valuable guide to the severity of your symptoms, it can also be used to measure success after the operation

The Aim of Surgery

A successful knee replacement will achieve the following;

  • Relief of pain
  • Increased level of activity (walking, leisure activities)?
  • Good range of movement allowing full extension and a good amount of bending in the knee (0-115 degrees)?
  • Last a long period of time (no early loosening requiring revision surgery)?
  • No other complications (e.g. infection, nerve injury)

The knee joint acts as a hinge between the bones of the leg and is effectively two joints. The major joint is between the thigh bone of the upper leg (femur) and the shin bone of the lower leg (tibia). The smaller joint is between the knee cap (patella) and the upper leg (femur). A smooth, tough tissue called articular cartilage covers the ends of the bones, allowing them to slide smoothly over each other. The synovial membrane that covers the other surfaces of the knee joint produces synovial fluid, which lubricates the joint, reducing friction. If the articular cartilage becomes damaged or worn, the ends of the bones rub or grind together, causing pain and difficulty moving the knee joint.

Replacing the damaged knee joint with an artificial one can help reduce pain and increase mobility.


Total knee replacement comprises resurfacing the bones of the tibia, femur and patella with a metal implant and then placing a high-grade plastic spacer to create a gliding surface.

What Happens after the operation?

You will be in hospital for approximately 3 days after the operation. You will walk on the first day after the operation with crutches, and need them for 6 weeks.
Physiotherapy is used to regain muscle strength and range of movement.

Are there any risks?

The major risks following a knee replacement are:

  • Infection – 1%
  • Deep Vein Thrombosis (DVT) – 2%
  • Loosening – Implants last 10-15 years

For more information on Total Knee Replacement Surgery please press here.

I want to thank Mr. Datta for taking such good care of me during both hip replacement procedures. It was my first major surgery and he helped calm my nerves. Both surgeries were successful and the after care was excellent. I am now completely pain free and able to do things I was not able to do for a number of years.

S Kirby

I must say my overall experience at Spire under Mr Datta was first class and I am very grateful to all involved

Peter L

My care and treatment has been excellent. From my first consultation through to my surgery, I have been kept well informed and have had all the information I’ve needed to ensure the surgery went well and that I make a speedy recovery. I would highly recommend Mr Datta.

Mr King

I had a total knee replacement done and had the best care. Yes did experience a long wait to go to surgery but that's expected in most hospitals. Was in for 3 days and couldn't fault the care, nurses and cleanliness of the hospital. Lovely food. One nurse in particular always managed to make me smile

P Elliott

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Wessex Nuffield Hospital

Winchester Road

Eastleigh, Hampshire

SO53 2DW