Interbody fusion cage

The utility model discloses an interbody fusion cage, which belongs to the technical field of orthopedic implants, and comprises a fusion cage main body, tooth-shaped bodies are arranged above and below the fusion cage main body, the fusion cage main body is made of a first material, the tooth-shaped bodies are made of a second material different from the first material, and porous structures are arranged on the tooth-shaped bodies; containing grooves are formed in the upper portion and the lower portion of the fusion cage body, the tooth-shaped bodies are connected into the containing grooves in a clamped mode, a buckle is arranged on one of the opposite surfaces of the tooth-shaped bodies and the containing grooves, and buckle holes matched with the buckle are formed in the other surface of the opposite surfaces of the tooth-shaped bodies and the containing grooves. The elastic modulus of the interbody fusion cage is easily designed to be close to the elastic modulus of cortical bones of a human body, so th