Noises can come from a number of possible sources, including the metal and plastic implants, tendons, and fluid around the knee. Determining the source of the noise is something your surgeon can help you with. However, take comfort in that fact that many patients describe clicks and other noises that come from their knee replacement.
That said, there are some times that noises coming from a replaced knee should be evaluated by your surgeon:
- New noises coming from the replaced knee: Most often, noises and clicks coming from a knee replacement tend to diminish over time. New noises should be evaluated by your surgeon.
- Noises associated with pain: Painless noises are often normal, but when pain, deformity, or swelling is associated with the noise, that's a good sign the knee needs evaluation.
Total Knee Replacement. American Academy of Orthopaedic Surgeons, April 2009.