Figure 2

Maximum articular extension angle. Representative images for the maximum extension angle of knee joint were shown in (a). Scale bars = 36 mm. Values were expressed as means ± SD (eight samples/group) (b). **p < 0.01 versus sham group, ^##p < 0.01 versus OA con, and ^$$p < 0.01 versus D2 + DW by LSD.