Knee joint balance detection system in total knee replacement and balance discrimination method thereof

Abstract

The invention discloses a knee joint balance detection system in total knee replacement and a balance discrimination method thereof. The system is characterized in that a left pressure sensor set anda right pressure sensor set are attached to the left and right regions of a gasket, in the operation process, the gasket is placed in a gap between the thigh bone prosthesis and the tibia bracket, data of the left and right sensor sets can be obtained during 0-degree knee bending, 90-degree knee bending, internal rotation and ectropion, due to data analysis, whether the knee joints are located inthe balanced state or not is judged, and if the knee joints are in the non-balanced state, by properly repairing bones or adjusting the position of a prosthesis, the knee joints are in the balanced state finally. By keeping the position unchanged, surgical suturing is performed. By improving the accuracy of surgical knee joint balance, the important role in prolonging the service life of the postoperation prosthesis of a patient, reducing postoperative complications, and improving the postoperation living quality of the patient is achieved.

Description

technical field [0001] The invention relates to a knee joint balance detection system and a balance discrimination method in total knee joint replacement, belonging to the field of clinical total knee joint replacement. Background technique [0002] Total knee arthroplasty (TKA) uses materials such as metal, high molecular polyethylene, and ceramics to make artificial knee prostheses according to the shape, structure and function of human joints, and implant them into the human body through surgical techniques to relieve joint pain in patients. Restoring joint function. TKA is often used to treat and improve the end-stage knee arthritis, knee cartilage necrosis, knee varus / valgus deformity and other diseases. Joint balance. TKA imbalance can lead to problems such as patient pain, prosthesis wear and loosening, and ultimately affect the patient's health and the retention time of the prosthesis in the patient's body. [0003] The commonly used TKA balance method needs to re...

AI Technical Summary

Problems solved by technology

This method needs to be measured and drawn in conjunction with the patient's X-ray film, and the F angle and T angle are difficult to measure accurately during the operation, and may change with the height of the human body, and the process is complicated

The soft tissue release process only includes the release site, not the release degree, which is difficult to control accurately

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