Abstract:

BACKGROUND: The dislocation, loosening, activity of artificial joint associated with the material factors and the surgeon technologies, but also closely related with the choice of prosthesis sizes.
OBJECTIVE: To investigate the research of the software for measuring template before total hip replacement and its reliability in initial clinical application.
METHODS: 132 patients were divided into two groups, the preoperative measurement of the prosthesis model that actually used in the process of hip replacement was performed with the research and development total hip replacement template measurement software or traditional methods respectively, and finally compared the above results with the practical application at surgery.
RESULTS AND CONCLUSION: The coincidence rate of prosthesis model measured by the software was 86.36% while coincidence rate of prosthesis model measured by traditional methods was 71.97%, the difference was statistically significant (χ2=13.794, P < 0.001). There was significant correlation between software predicted preoperative acetabular prosthesis model and intraoperative acetabular prosthesis model (r=1.000 0, P=0.015), and software predicted preoperative femoral prosthesis model was significantly correlated with the intraoperative application of femoral prosthesis (r=0.999 9, P=0.029). The software for preoperative measuring is devised successfully, and the initial clinical application is well.