If you’re preparing for knee replacement surgery, understanding what’s going into your body can help you feel more confident and informed. From implant types and materials to how long they last, this guide breaks down the essentials – including how your consultant chooses the right implant for your lifestyle and mobility needs.
When you’re preparing for a knee replacement, it’s helpful to understand what kind of implant will be used and why. Knee implants are not one-size-fits-all. Your age, activity level and joint health all influence which type is best for you.
Here’s a breakdown of the different options, how they work and how long they typically last.
A knee implant is an artificial joint made of metal and plastic. It replaces the damaged surfaces of your natural knee joint, allowing smoother movement and relieving pain.
There are usually three main components:
Some knee replacements may also include a component for the back of the kneecap (patella), depending on your anatomy and condition.
Most knee implants are cemented into place using a special bone cement. This provides immediate stability and is ideal for patients with lower bone density or over the age of 65.
Uncemented knee implants are used less commonly but may be considered in certain younger, more active patients with strong bone quality. These implants rely on bone growth into a porous surface to hold them in place over time.
At Transform Medical, we primarily use cemented implants for knee replacement as they offer excellent outcomes and faster early recovery in most patients.
Metal
Most of the implant is made from cobalt-chromium or titanium. These materials are durable, safe and resist wear. The metal components replace the ends of the bones in your knee joint.
Plastic (Polyethylene)
A high-grade plastic component acts as a cushion between the metal parts. It allows for smooth movement and reduces friction. In many modern implants, this plastic is specially treated to improve longevity.
These materials are chosen because they are biocompatible, meaning your body accepts them without an immune reaction.
Most modern knee implants last between 15 and 20 years or longer. Some patients will eventually require a revision, especially if they are younger or highly active.
our consultant will recommend the most suitable implant based on your health, lifestyle and future goals.
In most cases, your consultant will choose the implant that offers the best long-term result for your specific needs. However, we always explain your options and provide a record of the implant used.
You can ask about:
You’ll be fully informed before surgery so that you feel confident about what’s being placed in your body.
Specialist in Hip and Knee Surgery | GMC Registered (No. 6070956)
With over 25 years of experience, Dr. Hazem Hassouna specialises in hip and knee replacements, arthroscopy, and complex lower limb procedures. He is known for his precision, advanced training, and a patient-first approach to orthopaedic care.
Consultant Orthopaedic Surgeon (MBBS)
An Arthroplasty Specialist with Over 2 Decades of Consultant Practice.
Consultant Orthopaedic Surgeon (MBBS, MRCS Ed, FRCS Tr & Orth)
A Fellowship-Trained Hip and Knee Specialist.
Consultant Orthopaedic Surgeon (BSc Hons, MBBS Lond, MRCS, PgCert, FRCS Ed Tr&Orth)
A Specialist in Hip, Knee & Musculoskeletal Oncology Care
Before your surgery, you will undergo a thorough medical assessment to ensure you are fit for the procedure. This includes tests and consultations to help your surgical team plan the best approach for your individual condition.
Our team will explain the procedure in detail, discuss your options, and provide information on pricing and payment plans.
You will receive expert care during your hospital stay, followed by a tailored rehabilitation plan designed to help you recover as quickly and safely as possible.
After your surgery, our dedicated aftercare team will be available to offer guidance and support throughout your recovery. Regular follow-up appointments will help monitor your progress and address any concerns you may have, ensuring a smooth and safe return to your normal activities.
Our nationwide locations are designed to give you convenient access to trusted surgeons, modern facilities, and ongoing support every step of the way
