A cutting guide for a proximal tibia and a method of making the same

CN116439778BActive Publication Date: 2026-05-29SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV
Filing Date
2023-04-10
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In existing techniques, proximal tibial osteotomy is a complex procedure with large extramedullary positioning errors, leading to incorrect osteotomy and suboptimal prosthesis placement, increasing surgical time and infection risk, and affecting patient recovery.

Method used

Design an osteotomy guide plate for the proximal tibia, including a positioning plate and positioning lines. The positioning plate fits the tibia, the osteotomy groove is inclined at 3-5°, and the avoidance hole avoids the intercondylar eminence. It is personalized through 3D printing to achieve precise osteotomy and prosthesis installation.

Benefits of technology

It simplifies the osteotomy procedure, improves the accuracy of osteotomy and prosthesis installation, shortens the operation time, and reduces patient trauma and recovery time.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116439778B_ABST
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Abstract

The application discloses a cutting guide plate for a proximal tibia and a preparation method thereof, and belongs to the technical field of orthopedic cutting guide plates. The cutting guide plate comprises a positioning plate, the bottom surface of the positioning plate is attached to a tibial articular surface and lateral bone, a cutting groove is formed in the side surface of the positioning plate, the cutting groove is inclined backward by 3-5 degrees, an avoiding hole is formed in the top surface of the positioning plate, and at least two fixing holes are arranged on the positioning plate; and a positioning line is arranged on the upper end surface of the positioning plate, and the positioning line is used for pointing to the inner 1 / 3 of a tibial tuberosity. The cutting guide plate is used for tibial cutting surgery, effectively improves the cutting and prosthesis installation accuracy, shortens the operation time, reduces the operation complications, and helps the patient to quickly recover.
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