Fig. 2

Two surgical instrument trays in the operating room. The upper tray contains standard metal instruments. The lower tray contains standard metal instruments and the different CT-based, patient-specific, single-use instruments, ancillary and cutting guides (Knee-Plan® Set), shown in white. Single-use material in first (top) row, from left to right: femoral model, distal femoral cutting guide, intercondylar cutting block, 4-in-1 cutting block. Second row: tibial model, tibial cutting guide, tibial drill guide, tibial trial. Third row: tibial stem trial, impactor with impaction pad. Fourth (bottom) row: femur trial, 2 trial insert augments (+2mm and +5mm), trial insert