Contact surface, length determination, image processing method, system and x-ray machine for femur and tibia

By constructing an X-ray imaging segmentation model to automatically segment the femur and tibia, the problem of accurately determining the contact surface and length of the femur and tibia was solved, enabling more precise lower limb alignment assessment and surgical guidance, and improving joint stability and functional recovery.

CN122115351APending Publication Date: 2026-05-29SHENZHEN BLUE SHADOW MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN BLUE SHADOW MEDICAL TECH CO LTD
Filing Date
2026-01-30
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Current technology cannot accurately determine the contact surface and length of the femur and tibia, which hinders the assessment of lower limb alignment and deformities, the guidance of surgical planning and treatment, the analysis of joint biomechanics and function, and the monitoring of disease progression.

Method used

By constructing a segmentation model of knee X-ray images, masked images of the femur and tibia are obtained, and their contact surfaces and lengths are determined. The model performance is then trained and evaluated using a segmentation network to achieve automated segmentation and length measurement.

Benefits of technology

It improves the accuracy of femoral and tibial contact surface assessment, supports more precise lower limb alignment analysis and surgical planning, and improves joint stability and functional recovery.

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Abstract

The disclosure provides a femur and tibia contact surface, length determination, image processing method and system and X-ray camera, and relates to the technical field of determining the contact surface and length of the femur and tibia. The contact surface determination method comprises the following steps: obtaining a femur region mask image and a tibia region mask image corresponding to a to-be-processed knee joint X-ray image; determining an overlapping region corresponding to a femur region mask in the femur region mask image and a tibia region mask in the tibia region mask image; and configuring the overlapping region as a contact surface of the femur and tibia in the to-be-processed knee joint X-ray image. The embodiment of the disclosure can realize the contact surface, length determination and image processing of the femur and tibia.
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