Abstract: There is provided a surgical instrument that includes an elongated body of which distal end is formed to press and drive a bone plug into a bone tunnel. The elongated body also has a guiding hole which is preferably formed along the longitudinal axis of the elongated body and in communication with a front opening formed at the distal end. The guiding hole is formed such that a guide wire can be inserted therein and extend out from the front opening. The guide wire is used to guide the bone plug towards the distal end of the surgical instrument and keep the bone plug there during driving it into the bone tunnel.

Abstract: There is provided a surgical instrument that includes an elongated body of which distal end is formed to press and drive a bone plug into a bone tunnel. The elongated body also has a guiding hole which is preferably formed along the longitudinal axis of the elongated body and in communication with a front opening formed at the distal end. The guiding hole is formed such that a guide wire can be inserted therein and extend out from the front opening. The guide wire is used to guide the bone plug towards the distal end of the surgical instrument and keep the bone plug there during driving it into the bone tunnel.

Abstract: An artificial knee joint comprising: a femoral component comprising a femoral condylar portion made of a medial condylar section and a lateral condylar section which extend in an anteroposterior direction of the knee joint and have convex exterior surfaces, and a tibial component comprising a tibial condylar portion made of a medial condylar section and a lateral condylar section which extend in an anteroposterior direction of the knee joint and have concave interior surfaces so as to slidably receive the medial and lateral condylar sections of the fermoral condylar portion therein; and a space between the respective medial and lateral condylar sections of the femoral condylar portion and of the tibial condylar portion being formed so as to be gradually narrower toward the rear side of the knee joint, thus forming a “rear-in” configuration.

Abstract: An artificial knee joint comprising: a femoral component comprising a femoral condylar portion made of a medial condylar section and a lateral condylar section which extend in an anteroposterior direction of the knee joint and have convex exterior surfaces, and a tibial component comprising a tibial condylar portion made of a medial condylar section and a lateral condylar section which extend in an anteroposterior direction of the knee joint and have concave interior surfaces so as to slidably receive the medial and lateral condylar sections of the femoral condylar portion therein; and a space between the respective medial and lateral condylar sections of the femoral condylar portion and of the tibial condylar portion being formed so as to be gradually narrower toward the rear side of the knee joint, thus forming a “rear-in” configuration.