2nd-generation Patellofemoral arthroplasty and total knee ar
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Researchers aimed to compare second-generation patellofemoral arthroplasty (2G PFA) with total knee arthroplasty (TKA) in treating isolated patellofemoral osteoarthritis (PFOA) by assessing the percentages of revisions, complications, and patient-reported outcome measures (PROMs).

Studies that compared the outcomes of 2G PFA and TKA in the treatment of isolated PFOA were searched. Two researchers independently identified eligible studies, extracted the data, and evaluated the quality of the literature. Descriptive analysis was used when data could not be pooled.

Results:
--A total of 6 studies were included in the review. For the revision percentage and complications, there were no significant differences between 2G PFA and TKA (RR = 2.29; RR = 0.56 respectively).

--Second, the results demonstrated that the differences in the Oxford Knee Score (OKS) and the University of California, Los Angeles (UCLA) activity score between 2G PFA and TKA were not significant (WMD 4.68; WMD 0.16).

--The Knee Injury and Osteoarthritis Outcome Score (KOOS), the American Knee Society Score (AKSS), and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) were presented in a narrative form due to methodological heterogeneity.

2G PFA showed similar results to TKA with respect to the revision, complication and PROM percentages, for isolated PFOA.

Source: https://josr-online.biomedcentral.com/articles/10.1186/s13018-021-02509-z
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