Shock Absorbing Function Study on Denucleated Intervertebral Disc with or without Hydrogel Injection through Static and Dynamic Biomechanical Tests In Vitro

Figure 3

Results of the dynamic compression test. With the frequency increasing, the storage modulus increased significantly (𝑃<0.01) and both the loss modulus and tanδ decreased significantly (𝑃<0.01). (a) Storage modulus of control group was significantly higher than the other two groups (𝑃<0.01). (b) Loss modulus of control group was significantly higher than the other two groups (𝑃<0.01). (c) tanδ of control group was significantly higher than the other two groups (𝑃<0.01).

(a)

(b)

(c)