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

A 3D printing and osteotomy technology, applied in bone drill guidance, medical science, surgery, etc., can solve problems such as difficult to ensure the accuracy of osteotomy position, increase the risk of postoperative infection of patients, and easily endanger the health of surgeons, etc., to achieve The effect of precision medicine and personalized treatment, shortening the time of surgical anesthesia, and shortening the operation time

Active Publication Date: 2022-05-10
XIAN HONGHUI HOSPITAL
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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.

Method used

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

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Embodiment Construction

[0027] The technical solution of the present invention will be described in further detail below in conjunction with the embodiments.

[0028] A method for preparing a personalized 3D printed tibial high osteotomy guide plate, comprising the following steps:

[0029] Step 1. All patients were treated with 64-slice spiral CT with a slice thickness of 0.8mm and a slice interval of 0.5mm. The scanned images were saved in dicom format; the 3D image restoration software mimics19.0 was used to restore the dicom format data in 3D, and the threshold technology was used for preliminary processing , and then use filling technology to repair the gap holes generated by data conversion; get 3D data and transfer it to 3matic in stl format;

[0030] Step 2. Use BOHOLO software to restore the dicom format data for the second time, use the same threshold as step 1 for preliminary processing, and use 3D filling technology to repair the gaps generated by data conversion, obtain 3D data, and expo...

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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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/17B33Y30/00B33Y50/00
CPCA61B17/1732A61B17/1739B33Y30/00B33Y50/00
Inventor 张宪任博王富民
Owner XIAN HONGHUI HOSPITAL
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