Patient Information Resources


Centre for Orthopaedics
Suite 10-33/34/35 Mount Elizabeth Novena Specialist Centre
38 Irrawaddy Road
Singapore, 329563, Singapore
Ph: (65) 6684 5828
Fax: (65) 6684 5829
sharon@cfo.com.sg






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Child Orthopedics
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I have end stage ankle arthritis and my surgeon wants to perform a total ankle replacement, specifically a fixed implant.  I’m concerned about this because normally don’t ankles move in more than one direction.  I can make a circle with my other ankle.  I know they make a mobile implant.  Why does he not use this one instead?  What are the disadvantages to a fixed implant?

There is a mobile implant available but recent evidence suggests that there is little difference between the two implant types.  A fixed implant actually allows for better gait mechanics.  People with mobile implants report better pain reduction, but this could be a study flaw.  This is ultimately a discussion you should have with your surgeon as he is basing his decision on your needs, specific function, and pain.  Do know, however, that both implants are considered equal and effective.

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