Fig. 1From: Patient and surgical factors affecting procedure duration and revision risk due to deep infection in primary total knee arthroplastyFlow chart with inclusion and exclusion criteria for total knee arthroplasties (TKA) reported to the Norwegian Arthroplasty Register from 2005 to 2015. Knees treated with uncemented, hybrid, cemented without antibiotics, unicompartmental, PS (posterior stabilized), CCK (constrained condylar knee), hinged, stemmed implants and TKA with patellar component were excluded for homogeneity reasons. Only TKAs with known operation time were includedBack to article page