News in brief: ACR cancels 2021 in-person meeting; Knee revisions have diminishing returns; PMR patients need osteoporosis protection

How long do revised knee replacements last? Revisions of a knee replacements are progressively less successful with each subsequent revision lasting only half the time of the previous one, a UK study has shown. A retrospective review of more than 33,000 knee replacements with a primary episode found that 20% of first revisions were revised ...

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