Preparation method of a personalized 3D printed tibial high osteotomy guide plate

Abstract

The invention discloses a preparation method of personalized 3D printing high tibial osteotomy guide plate, which is used for 3D printing high tibial osteotomy guide plate. Before operation, according to the CT data of patient's knee joint, computer simulation modeling and three-dimensional In the reconstruction program, the deformity of the patient's tibia is printed out at a ratio of 1:1, and the osteotomy position is designed preoperatively through 3D printing technology. Finally, an osteotomy guide that is completely attached to the proximal end of the patient's tibia is designed through the model material. During the process, the proximal end of the tibia is directly attached and the osteotomy operation is started immediately according to the preoperative osteotomy plan. Under the adjustment of ensuring accuracy, the surgical operation steps are simplified, the anesthesia time is shortened, and the safety of the patient is ensured. Extensive clinical promotion effect. According to the proximal tibial fixation plates provided by different manufacturers, the position and direction of the tibial osteotomy can be individually designed, with a certain degree of flexibility.

Description

technical field [0001] The invention belongs to the technical field of orthopedic medical devices, and relates to a method for preparing a personalized 3D printed high tibial osteotomy guide plate, in particular, to a preparation and preparation of a personalized 3D printed osteotomy guide plate for high tibial osteotomy. How to use it. Background technique [0002] Degenerative osteoarthropathy of the knee joint is often accompanied by varus deformity of the knee joint, and produces changes in the load-bearing biological stress in the joint, which leads to an imbalance in the force line of the lower limbs, which in turn accelerates the wear of the knee articular cartilage and the development of bone joints. At present, high medial tibial osteotomy is the most common surgical method for the treatment of early and mid-stage knee osteoarthritis caused by knee varus. The principle of the treatment is to transfer the pressure of the worn medial compartment of the knee joint to ...

AI Technical Summary

Problems solved by technology

The entire osteotomy positioning process is cumbersome, prolongs the entire operation time, and increases the risk of postoperative infection for patients

Moreover, the accuracy of positioning is greatly affected by the human factors of the surgeon, and it is difficult to ensure the accuracy of the osteotomy position determination, and there are unfavorable factors of radiation and high radiation during the fluoroscopy process, which is likely to endanger the health of the surgeon.

During the entire osteotomy process, positioning is based entirely on the experience of the surgeon and the naked eye, and precise control cannot be achieved, and the shape and length of the proximal tibia are different for each patient. How to perform personalized and precise osteotomy is a further problem to be solved.

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