Judgment method for dynamic soft tissue balance during total knee replacement based on support vector machine

A technology of total knee replacement and support vector machine, applied in diagnosis, diagnostic recording/measurement, medical science, etc., can solve problems such as error, long learning time, increase intraoperative infection, etc., and achieve the goal of reducing error and improving accuracy Effect

Pending Publication Date: 2020-06-02
NANJING MEDICAL UNIV
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Problems solved by technology

At present, relatively mature soft tissue balance technologies are mainly computer navigation systems and Verasense sensor systems developed abroad. Although these systems have solved the problem of intraoperative soft tissue balance judgment to a certain extent, their learning time is long and the operation is complicated, which

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  • Judgment method for dynamic soft tissue balance during total knee replacement based on support vector machine
  • Judgment method for dynamic soft tissue balance during total knee replacement based on support vector machine
  • Judgment method for dynamic soft tissue balance during total knee replacement based on support vector machine

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0047] see Figure 1-Figure 9 As shown, the present invention provides a kind of technical scheme:

[0048] In order to express the leg posture conveniently, according to the angle data actually obtained and combined with clinical common terms, the leg posture angle is defined as the knee joint extension and flexion angle, the knee joint internal rotation and external rotation angle, and the hip joint adduction and external rotation angle respectively. exhibi...

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Abstract

The invention relates to the technical field of total knee replacement, and in particular relates to a judgment method for dynamic soft tissue balance during total knee replacement surgery based on asupport vector machine. The method comprises the following steps: collecting posture angle data of leg postures, and establishing a dynamic soft tissue balance judgment formula model; training the dynamic soft tissue balance judgment formula model by using the support vector machine; and performing classification output by using the support vector machine. In the judgment method of the dynamic soft tissue balance during the total knee replacement surgery based on support vector machine, the dynamic soft tissue balance judgment formula is established, and soft tissue balance judgment is performed to guide doctors to make timely correction through a clinical technical means during operation, so that realize accurate recovery of a lower limb force line is realized; and a supervised machine learning classification algorithm is used for soft tissue balance judgment, so that errors caused by formula judgment are reduced, and the accuracy of balance judgment results is improved.

Description

technical field [0001] The invention relates to the technical field of total knee replacement, in particular to a method for judging dynamic soft tissue balance in total knee replacement based on a support vector machine. Background technique [0002] Total knee arthroplasty is currently the most reliable treatment for severe knee OA, with a success rate of over 90%. The key to the success of total knee replacement surgery lies in the correct balance of osteotomy and soft tissue, which together enable the accurate reconstruction of the normal mechanical force line of the lower limbs during the operation. After the operation, the pain of the patient disappears, the gait is improved, and good joint motion function is obtained. patient's quality of life. The traditional method of judging soft tissue balance is that doctors use their experience to feel the tension of the inner and outer soft tissues with their hands in different postures of the knee joint. There are subjective ...

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Application Information

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IPC IPC(8): A61B5/11A61B5/00
CPCA61B5/1116A61B5/1121A61B5/4528A61B5/4585A61B5/7267
Inventor 李修寒吴小玲王伟
Owner NANJING MEDICAL UNIV
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