Patella trimming fixator in knee replacement

A patella trimming fixator in knee replacement is characterized by comprising a tray used for supporting patella and two fixators of ligament clamping portions, the tray of each fixator is provided with a cavity, the cavity is large in upper portion and small in lower portion, the left side and the right side of the periphery of the tray respectively extend to form a supporting plate used for supporting ligaments, and the left side and the right side of the periphery of the tray respectively extend to form a supporting plate. A first handle extends out of the middle of the periphery of the tray, the two ligament clamping parts are located on the left side and the right side of the tray respectively, correspond to the left side and the right side of the tray and extend around the periphery of the tray in a bent mode, the left ligament clamping part and the right ligament clamping part are each provided with a second handle, and the two second handles are located on the two sides of the first handle respectivel