The effect of pedicle to collapse ratio on patients with post-operative fusion lumbar spine fractures

Abstract

The aim of this study was to evaluate the effect of pedicle diameter ratio on collagen percentage on vertebral fusion. Methods: Sixty patients who were referred and underwent surgery due to lumbar fracture, were enrolled the study. The diameter of the pedicle and the percentage of broken collapses were measured before operation and then the ratio of these two factors was determined and then underwent surgery. After the operation, the angle of the F was measured. Patients were followed up for 6 months and were evaluated based on the success of the fusion, a predictive criterion. Results: The mean of pedicle diameter in patients was 10.87 ± 0.79 (0.92 ± 1.29), 0.058 ± 0.05 0.05 and 0.049 ± 0.86, respectively, and the ratio of pedicle to degree of collapse in patients 18.41 ± 1 (10.92-22.82) were calculated. The angle of F in patients before surgery was 24.5 ± 3.02, which after surgery decreased to 12.83 ± 1.40, and this decrease was statistically significant (P <0.001). According to the cut off point, the ratio of the ratio of the diameter of the pedicle to the degree of collapse was 98.71% (95.99% -95.99%, 95% CI) and 71.74% (96.33% 04/29% = 95% CI) to predict the creation of fusion after surgery, so that if it is greater than 16.74, the fusion of the vertebrate will occur.