A recent Meta-Analysis from Germany confirmed that the decision between PKR and TKR should weigh the functional outcomes of PKR with the risk of an earlier revision (OR 2.16, P > 0.0001).
The authors (Migliorini et al.) found that PKR patients achieved better scores on every measured variable including OKS, KSS, walking distance, range of motion, length of stay, and estimated blood loss. PKR patients did however experience an increased risk of a revision.
This study confirms the findings of various publications that used registry data and drew similar conclusions.2-4 A publication by Liddle et al. illustrated how the higher revision rate of PKR can be addressed through increased usage, which can have a positive impact on the revision rate of PKR.5-7