Navigation device capable of accurately positioning high tibial osteotomy, and manufacturing method of navigation device

Abstract

The invention provides a navigation device capable of accurately positioning high tibial osteotomy. The navigation device comprises a positioning template and a bone cutting template, wherein the positioning template comprises a first fixing sheet, and navigation holes are formed in the first fixing sheet; the bone cutting template comprises a second fixing sheet, and a pendulum saw bone cutting groove is formed in the second fixing sheet. The invention further provides a manufacturing method of the navigation device capable of accurately positioning the high tibial osteotomy. The method comprises the following steps: collecting raw data, establishing a three dimensional model, determining a bone cutting plane and a bone cutting angle, designing navigation templates and making the navigation templates. Through the adoption of the navigation device and the manufacturing method thereof, which are disclosed by the invention, the diagnostic accuracy is further improved, the bone cutting accuracy is guaranteed, the limb alignment is restored, postoperative complications are reduced, and the functions of knee joints are improved.

Description

technical field [0001] The invention belongs to the technical field of surgical machinery equipment, and in particular relates to a navigation device capable of accurately locating a high tibial osteotomy. The invention also relates to a preparation method of a navigation device capable of accurately locating a high tibial osteotomy. Background technique [0002] Knee varus is a common orthopedic disease, often secondary to rickets, polio, trauma and infection and other destructive diseases, resulting in deformity of the femur or tibia, changing the line of force of the lower limbs and the contact pressure of the knee joint, resulting in an imbalance in the length of the lower limbs , induce joint osteoarthritis, which can cause pain in the affected limb, abnormal gait and appearance, etc. In 1958, Jackson et al reported for the first time that high tibial osteotomy (HTO) was used to treat valgus and valgus deformity of the knee joint, and achieved good results, and it has a...

AI Technical Summary

Problems solved by technology

[0003] Traditionally, preoperative X-rays are mainly used to determine the osteotomy plane and osteotomy angle. However, due to factors such as shooting distance, ray centerline angle, and projection position, the measured values ​​are not accurate enough. It is difficult to accurately evaluate by X-ray film or cross-sectional imaging; in addition, in two-dimensional images, the deformity angle of other planes other than the frontal plane cannot be measured, and the deformity measurement cannot be estimated from the three-dimensional level, resulting in a large deviation in preoperative evaluation Big

In the process of traditional osteotomy orthopedic surgery, it is usually necessary to rely on the doctor's personal experience, multiple osteotomies, and constant adjustment of the position under the C-arm to obtain satisfactory orthopedic surgery, resulting in more bone loss, prolonged operation time, intraoperative blood loss and Increased postoperative complications affect the effect of surgery

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