Three-dimensional model generation method for personalized tibial osteotomy based on CT scan data

By analyzing the corner features and distribution of tibial CT sections, a personalized three-dimensional tibial osteotomy model was constructed, which solved the problem of vascular injury in the existing technology and achieved a safer tibial surgical effect.

CN119970223BActive Publication Date: 2025-07-04SHENYANG ORTHOPEDIC HOSPITAL
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Patent Information

Application Number
CN202510480287.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2025-07-04
Estimated Expiration
2045-04-17

AI Technical Summary

Technical Problem

The existing methods failed to effectively avoid blood vessels in the surrounding tissues of the tibial bone in constructing a three-dimensional model of tibial osteotomy, resulting in damage and bleeding to the blood vessels during surgery, affecting the surgical effect.

Method used

By obtaining tibial CT sections of historical patients and current patients, using the Gaussian pyramid for scale transformation, analyzing the structural characteristic indicators and stable distribution degree of corner points, identifying and constructing a personalized three-dimensional model of tibial osteotomy to accurately display the position of blood vessels and avoiding damage.

Benefits of technology

Accurately identify all parts of the tibia, avoid vascular damage, and improve surgical stability and treatment effect.

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Abstract

The present invention relates to the technical field of constructing three-dimensional models of tibial osteotomy, and specifically relates to a method for generating a personalized three-dimensional model of tibial osteotomy based on CT scan data. This method obtains the tibial CT slices of a patient; according to the appearance and distribution of corner points in the tibial CT slices in images with different scale transformations, obtains the structural feature indexes of the corner points; according to the matching situation of corner points in the tibial CT slices of the current patient and historical patients, obtains the stable distribution degree of the corner points; according to the structural feature indexes and the stable distribution degree, obtains the type of each corner point in the tibial CT slices of the current patient, and constructs a three-dimensional model of tibial osteotomy for the current patient. The present invention constructs a three-dimensional model of tibial osteotomy on the basis of obtaining the type of each corner point in the tibial CT slices of the current patient, which is beneficial to accurately identify each part of the tibia of the current patient, avoid damaging the blood vessels in the tissue during tibial treatment, and effectively improve the effect of tibial treatment.
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