AJRR

In this issue of JAMA, Cram and colleagues report detailed analysis of primary and revision total knee replacement (TKR) performed on more than 3.2 million Medicare beneficiaries from 1991 to 2010. This analysis confirms and quantifies several important findings. First, the use of primary and revision TKRs in Medicare beneficiaries has increased both in absolute volume from 93,230 procedures in 1991 to 226,177 procedures in 2010 and in per capita usage. Second, the pattern of care has changed substantially.  Read more....