20 years or more: The newest total hip arthroplasty (tha) implants are designed to last for around 20 years. Most of the wear associated with tha is due to polyethylene. That is the plastic lining of the hip socket. Newer compositions and materials, such as ceramic, have decreased tha wear rates significantly. Less cement is used now and the metal implants, usually titanium, allow for bony ingrowth with the implant.
Answered 11/29/2019
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