Fig. 7

PDA-PEG NPs suppresses bone resorption induced by ACLT. a Three-dimensional reconstruction of the subchondral bone. b Sagittal views and of the medial compartment of the knee. c Front views of the knee joints. d Quantification of micro-CT parameters including BV, BV/TV, Tb.N, and Tb.Sp. e Reconstruction of subchondral blood vessels based on microangiography. f Quantification of VV and VN of the blood vessels. n = 3. Symbol “*” denotes p < 0.05, “**” denotes p < 0.01, NS indicates not significant