Effect of Laser Acupuncture on Disuse Osteoarthritis: An Ultrasound Biomicroscopic Study of Patellar Articular Cartilage in Rats

Figure 4

(a) The surface profile of the cartilage surface extracted from ROI (red dashed rectangle in Figure 3(a)). (b) URI of groups C, T, and L. **Statistically significant difference at level 𝑃<0.01.

(a)

(b)