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Knee Replacement
Patients & Carers

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Knee Replacement

Total Knee Replacement (TKR) is a significant operation but one of the most common orthopaedic procedures.  Between 2003 and 2015, there were 871,472 knee joint replacements recorded in the National Joint Registry* and this number is rising annually. Many people require this type of surgery and thankfully it has a very high rate of success. If the healthcare professionals supporting you have recommended this procedure it is important to understand there are many implants available but they are not all the same and do not perform in the same way.

The primary objective is to remove pain and restore mobility but, as a candidate for such a procedure, there is much more to consider if you are looking forward to enjoying an active lifestyle.

The Medial Rotation Knee™ (MRK) has already changed the lives of so many of our patients. Several individuals have kindly shared their experiences with this implant, which you can read about in our Patient Testimonials section.

    Our objective is to restore your quality of life

The knee is one of the most complex joints in the body and our pioneering engineers were among the first to conduct in-depth biomechanical studies back in the early 1970s. The Medial Rotation Knee™ (MRK) is the evolutionary result of this work and out-performs all other total knee replacements currently available in the UK. 

The National Joint Register (NJR) is a completely independent survey established by the UK Government to record the date and type of knee replacement procedure and compare those figures against the date and type of knee replacements removed for any reason. This study is the largest in the world and has shown the Medial Rotation Knee™ to be the number one top-performing device which means fewer Medial Rotation Knee™ patients require a second operation.

The survival of the implant is of vital importance to you but so is its function when it comes to restoring your quality of life. The Medial Rotation Knee™ can give you confidence to pursue your normal active lifestyle. You will, of course, need to be guided by the healthcare professionals familiar with your circumstances but the Medial Rotation Knee™ works with you to provide a stable joint with good range-of- motion and mobility. We have not compromised, so why should you? The Medial Rotation Knee™ is unique in design and represents an evolutionary step towards replicating how the normal knee works.

It is important to understand what to expect at your operation and what to do beforehand so that you are prepared when the time comes. To learn more why not download our Guide for Patients which also explains what happens following surgery and will help manage your expectations about what needs to be done to get you ‘back on your feet’ quickly.

The information and guidance provided here is general in nature and should not be considered as medical advice in any way. You should always seek detailed advice from a qualified medical practitioner.

For more information on the National Joint Registry please visit: and download a patient-friendly summary of their report.

* National Joint Registry for England, Wales, Northern Ireland and Isle of Man, 12th Annual Report, 2015


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Registered Offices:
MatOrtho Limited, 13 Mole Business Park, Randalls Road, Leatherhead, Surrey,
United Kingdom, KT22 7BA