Figure 4
From: Dependence of model-based RSA accuracy on higher and lower implant surface model quality
RE surface model. Surface model of a tibial total knee arthroplasty component generated with RE technology. Also visible is a close up of the tibial stem, in order to illustrate the quality of the mesh. (A) Surface model digitized using optical non contact digitizing system ATOS II, consisting of 113,934 points and 227,693 polygons. (B) Surface model digitized using optical non contact digitizing system ATOS I, consisting out of 103,188 points and 206,366 polygons. (C) Reduced ATOS II surface model (2,572 points and 4,999 polygons), and (D) reduced ATOS I model (2,502 points and 5,000 polygons).