Thighbone integrity analysis system and thighbone integrity analysis model construction method

Abstract

The invention relates to a thighbone integrity analysis system. The system at least comprises a three-dimensional model creation module, a three-dimensional model extraction module and a data analysismodule, the three-dimensional model extraction module is used for carrying out distance threshold iterative calculation on triangular patch grid sets of the original necrosis model A and the originalbone model B at least once by utilizing a distance threshold algorithm about an acetabulum lunar surface or about the original necrosis model A so as to complete a space coarse registration process and a space fine registration process in sequence, extracting to obtain a processed femoral head load accurate area and a necrosis load accurate area; the data analysis module is used for respectivelycutting the femoral head load precise area and the necrosis load precise area according to the established cutting surface, so that the corresponding load stress concentration areas on the femoral head load accurate area and the necrosis load accurate area can be obtained, and the integrity rate of at least one load stress concentration area is calculated.

Description

technical field [0001] The invention relates to medical imaging technology and the field of medicine, in particular to a femoral integrity analysis system and a method for constructing a femoral integrity analysis model. Background technique [0002] It is an indisputable fact that necrosis of the femoral head seriously endangers the health and quality of life of patients. Its treatment has also become a worldwide problem. The risk of multiple revisions; once the femoral head collapses, no matter what kind of treatment can restore the original shape of the femoral head, it is prone to secondary osteoarthritis; the success rate of hip preservation treatment is not completely satisfactory, etc. Young patients can avoid the risk of joint replacement and multiple revisions if the hip preservation is successful; if the femoral head does not collapse, they can avoid irreversible damage caused by changes in the shape of the femoral head and subsequent osteoarthritis Therefore, pre...

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Problems solved by technology

[0007] In the prior art, the above-mentioned patents can establish a necrotic femoral head model through the CT / MR scan image data of femoral head necrosis, or obtain the corresponding repaired surface of the lesion, but the modeling method provided can only establish the corresponding The femoral head support is implanted into the repair model of necrotic femoral head. However, for the subsequent surgical treatment of femoral head necrosis, the modeling method provided by this patent cannot achieve accurate segmentation of the femoral head model, and in the process of model construction In this method, the spatial relationship of femoral head necrosis is not judged for the femoral head model obtained after segmentation, and the accuracy of model extraction is low, so it will have a great impact on the subsequent surgical treatment of femoral head necrosis. Simulation training cannot fully meet the clinical needs of femoral head necrosis surgical treatment. In addition, whether femoral head necrosis will progress to collapse is closely related to its necrotic surface area, so it cannot further achieve early prediction and prevention of femoral head necrosis and collapse.

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