Fig. 5From: Does patellofemoral osteoarthritis affect functional outcomes and survivorship after medial unicompartmental knee arthroplasty? A meta-analysisFunnel plot of the analysis. a OKS for medial facet lesions. b OKS for lateral facet lesions. c OKS for trochlear surface lesions. d OKS for lesions anywhere. e Revision rate. f ROMBack to article page