Figure 7
Semiquantitative analysis of repair tissue at the articular cartilage defects among different hydrogels. Sections were evaluated using the O’Driscoll score and denoted by percentages. (A) Overall score; (B) Nature of the predominant tissue; (C) Structural characteristics; (D) Freedom from cellular changes of degeneration; (E) Freedom from degenerative changes in adjacent cartilage. Statistical difference is denoted by *P <0.05.