Adjustable support for knee joint replacement surgery

The adjustable support for the knee joint replacement surgery comprises an operation table, a first fixing block is fixedly connected to the middle position of the top of the operation table, and evenly-distributed limiting holes are formed in the middle positions of the front end and the rear end of the right side of the top of the operation table in a penetrating mode. A limiting groove is formed in the middle of the right side of the top of the operation table in a penetrating mode, a fixing rod is fixedly connected to the middle of the interior of the limiting groove in a penetrating mode, a sliding block is slidably connected to the outer wall of the fixing rod in a penetrating mode, and a foot support is fixedly connected to the top of the sliding block; limiting blocks are fixedly connected to the front and rear ends of the outer wall of the right side of the foot support. According to the knee joint angle adjusting device, through linkage among the first rotary knob, the first rotating shaft, the seco