1 results about "Normal side" patented technology

The application provides a lumbar posterior joint replacement surgery implant provided with an external connecting assembly, the external connecting assembly comprising an upper connecting assembly and a lower connecting assembly, the middle position of the upper connecting assembly being provided with an upper connecting cover plate, the middle position of the lower connecting assembly being provided with a lower connecting cover plate, the inner side position of the bottom end surface of the upper connecting cover plate being provided with an upper movable boss, and the inner side position of the top end surface of the lower connecting cover plate being provided with a lower movable boss. The application solves the problem that the existing intervertebral fusion cage does not have a structure for assisting the movement of the vertebral body, leading to rigid fixation between adjacent vertebral bodies, so that the adjacent vertebral bodies cannot move relative to each other after the surgery, and only other lumbar segments can be used to complete the local movement of the lumbar vertebrae, reducing the overall movement range of the lumbar vertebrae, increasing the transmission load of the lumbar vertebrae, and causing the patient to be unable to perform normal side bending, flexion and extension movements after the surgery. The application can be widely applied to lumbar posterior joint replacement surgery.