Radioelectronic wireless systems for non-invasive diagnostics of tubular bone fractures during body osteosynthesis

During the rehabilitation of the patient, accidental and shock loads are the main cause of aseptic loosening and damage to the elements of the fixing structure (FC). The lack of control over the formation of cartilaginous callus in the fracture zone causes an increase in the period of incapacity for work and an increase in material costs associated with the patient's stay in the hospital.The partial load on the bone is simulated, which is 25% of the calculated value and is equal to the average body weight of the patient. On the basis of the obtained data, a new method and device were developed for non-invasive detection of the initial moment of weakening or fracture of the fixing structure, detection of improper fracture fusion, diagnosis of the formation and control of cartilage callus growth, detection of the appearance of the initial moment of the inflammatory process in the patient's body and diagnosis of the causes of this process. The requirements for a possible method of non-invasive diagnosis of the condition of a tubular bone fracture are formulated. Criterion dependencies of the controlled parameters were established. The effect of random loads, which are the cause of failures of the fixing structure, has been proven. Wireless transmission of electricity and information made it possible to develop a method of non-invasive control and diagnosis of fracture of tubular bones and to establish criterion dependencies between controlled parameters. For a comprehensive diagnosis of the patient's recovery, it is sufficient to monitor the pressure at three points, the bending moment at the site of the bone fracture, the temperature of the periosteum and the temperature of any other point of the body.