Orthopedic joint replacement operation auxiliary device

The invention discloses an auxiliary device for an orthopedic joint replacement operation, and relates to the technical field of medical instruments, and the auxiliary device is characterized in that a U-shaped clamping plate is transversely arranged, a rotary fixing rod penetrating through the bottom of the U-shaped clamping plate is arranged at the bottom of the U-shaped clamping plate, and a supporting side plate and a lifting device are arranged at the top of the U-shaped clamping plate; a top plate is arranged at the top of the supporting side plate, and the top plate and the supporting plate are integrally formed; a sliding groove is formed in the side wall of the supporting side plate, and the bottom of the top plate and the sliding groove are both connected with a lifting device. A swinging device is embedded in the supporting device, and a fixing device is arranged at the bottom of the swinging device; the lifting device comprises a first servo motor, a first rotary threaded rod, a first bearing and