Fig. 7

Result of torque test for the RBM implant and MRI. The displacement is measured from the movement of load-cell. a Representative torque-displacement curves for the RBM implant after 8 weeks. b Representative torque-displacement curves for the MRI after 8 weeks. c Maximum torque forces for the MRIs and RBM implants. The graph shows the average maximum torque forces of the MRIs and RBM implants over the 4, 8, and 12 week evaluation period (n = 6, ±SD). A repeated measures analysis with ANOVA and Bonferroni post hoc test showed significant differences for all groups (p < 0.05), with the exception of 8 and 12 weeks within the RBM implant group (p = 0.3463)