title: Comment on Chen et al.: "Patellar resurfacing versus nonresurfacing in total knee arthroplasty: a meta-analysis of randomised controlled trials".
authors.forename: Zhao-hui
authors.initials: ZH
authors.lastname: Hu
authors.forename: Ning-ning
authors.initials: NN
authors.lastname: Li
authors.forename: Xiang-tao
authors.initials: XT
authors.lastname: Xie
mesh_terms: D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D006801:Humans; D007719:Knee Joint / Q000601:surgery*; D007720:Knee Prosthesis; D020370:Osteoarthritis, Knee / Q000601:surgery*; D010329:Patella / Q000601:surgery*