The utility model relates to the technical field of
medical instruments, and discloses a high-stability durable tibial
prosthesis which comprises a
locking mechanism, the
locking mechanism is of a double-layer structure, an anti-rotation mechanism is rotatably arranged on the lower end face of the
locking mechanism, a telescopic mechanism is movably arranged on the lower end face of the anti-rotation mechanism, and an implanting mechanism is fixedly arranged on the lower end face of the telescopic mechanism. The locking mechanism comprises a locking hole, a side wing steel plate, a tibial
plateau, a bone trabecula porous structure, a locking bone screw, a first suture hole and a second suture hole, the anti-rotation mechanism comprises an anti-rotation block, an anti-rotation groove, a first cylindrical pin and an anti-rotation rod, and the telescopic mechanism comprises a telescopic
handle, a second through hole, a second cylindrical pin, an adjusting button and an adjusting shaft. The implanting mechanism comprises an intramedullary nail and a
bone cement groove. According to the bone trabecula
prosthesis, the retraction mechanism is arranged and can be adjusted according to the requirements of different patients, and the bone trabecula porous structure and the anti-rotation mechanism are arranged, so that the
prosthesis can be kept stable.