动物造模 z-bio 2022-01-25 531

　　Objective: To study the effect of sand therapy temperature on bone remodeling experiments and the numerical simulation of heat transfer.

　　Methods: Four scans were performed by CT scanning (one time before and after the establishment of the OA model of the experimental subjects, and one time after the 1st week and 2nd week of sand therapy). The scan data was imported into the MIMICS software, and the changes in the bone mass of each femoral layer were analyzed. The muscle, femur and bone marrow were divided into meshes after assembly, and the STL format of the established 3D model was imported into the COMSOL software for heat transfer simulation and temperature analysis. Effects of field-generated stress on bone remodeling.

　　RESULTS: The changes of CT scan data and thermal stress simulation of 4 times were analyzed. Under the thermal stress environment generated by sand therapy temperature, the volume of soft bone decreased, while the volume of dense and hard bone increased. The numerical simulation of heat transfer can well reflect the temperature distribution of the thigh and femur.

　　Conclusion: The thermal stress of the femur induced by the sand treatment temperature can promote bone remodeling.