Fracture reduction navigation method and system

Abstract

The invention provides a fracture reduction navigation method and system, and relates to the technical field of surgical navigation. The method comprises the steps that a broken bone model with a first navigation part and a second navigation part is constructed according to a tomography image of a fracture part and virtual models of the first navigation part and the second navigation part; then virtual fracture reduction is conducted to obtain a second graph formed by laser signals after virtual fracture reduction is completed; and in the fracture reduction surgery process, a first graph and the second graph are controlled to be displayed in the same display device at the same time and present a superposable state, then the second graph serves as a target graph, the relative position between the first navigation part and the second navigation part is adjusted to change the shape of the first graph, and fracture reduction navigation is achieved. The method and system have the advantages that the X-ray irradiation frequency is reduced, guidance in the fracture reduction process is more visual, convenience of the fracture reduction surgery is improved, the navigation cost is low, and the good application and popularization value is achieved.

Description

technical field [0001] The invention relates to the technical field of surgical navigation, in particular to a fracture reduction navigation method and system. Background technique [0002] Fracture refers to the complete or partial break of the continuity of bone structure, which is a common trauma in life. The normal anatomical model of fracture patients is destroyed, which affects the function of limbs and brings great inconvenience to life. Fracture reduction is usually used to treat fractures, and doctors generally perform reduction in the following ways: (I) manual reduction only based on anatomical experience; (II) manual reduction of fractures under X-ray fluoroscopy. Manual reduction based only on the anatomical structure poses a huge challenge to doctors, and it is very easy to cause other iatrogenic injuries such as failure of reduction. Only two-dimensional perspective information is provided based on X-ray fluoroscopy, and there are problems such as loss of thr...

AI Technical Summary

Problems solved by technology

Manual reduction based only on the anatomical structure poses a huge challenge to doctors, and it is very easy to cause other iatrogenic injuries such as failure of reduction

Only two-dimensional perspective information is provided based on X-ray fluoroscopy, and there are problems such as loss of three-dimensional longitudinal information and image distortion. It cannot fully reflect the three-dimensional space information of the fracture and the mutual positional relationship of each fracture section, and cannot accurately evaluate the reduction during the reduction process. Images of tissues such as blood vessels, nerves, and muscles along the path, while the continuous use of X-rays will bring significant radiation damage to doctors and patients

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