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Five years ago I had my left knee replaced. It's starting to hurt again. I can hardly go up and down stairs. Even getting in and out of a chair is tough. The doctor wants me to have the knee done again. If I wait too long, will it be too late?

Sometimes a joint implant only needs to be revised, not replaced completely. The plastic lining may be removed and replaced. Or perhaps only one side of the joint is loose. Waiting too long can lead to uneven stresses and strains on the joint. More damage than good is done in such cases.

A few guidelines may help you when deciding when to go ahead with a joint revision. Watch for:

  • constant pain that never goes away
  • pain at rest
  • chronic infection
  • your knee gives out from under you unexpectedly (risk for falls)
  • you are limited in what you can do and what you want to do

    Even one of these factors can be reason enough to have a joint revision. More than one probably means you are at risk for further damage and injury, not to mention depression from inactivity. Talk to your doctor again. Find out what's needed and what to expect in recovery. It may not be as bad as you think.

    • Reference: 

    Jared R. H. Foran, BA, et al., The Outcome of Total Knee Arthroplasty in Obese Patients. In The Journal of Bone and Joint Surgery. August 2004. Vol. 86-A. No. 8. Pp 1609-1615.

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