Macroscopic cartilage repair scoring of defect fill, integration and total points correlate with corresponding items in histological scoring systems – a study in adult sheep  L. Goebel, P. Orth, M. Cucchiarini, D. Pape, H. Madry  Osteoarthritis and Cartilage  Volume 25, Issue 4, Pages 581-588 (April 2017) DOI: 10.1016/j.joca.2016.10.014 Copyright © 2016 Osteoarthritis Research Society International Terms and Conditions

Fig. 1 Representative macroscopic and histological images with poor (a–c), intermediate (d–f) and good (g–i) results as observed in this study according to the Sellers score. The red squares in a, d and g refer to the histological images in b, e and h; while the red squares in b, e and h depict to the detail images c, f and I, respectively. Asterisks refer to persistent drill holes observed 6 month after Pridie drilling. Osteoarthritis and Cartilage 2017 25, 581-588DOI: (10.1016/j.joca.2016.10.014) Copyright © 2016 Osteoarthritis Research Society International Terms and Conditions

Fig. 2 Relationship between macroscopic and histological scoring systems for key categories of articular cartilage repair. Macroscopic parameters (ordinate) were plotted against histological categories (abscissa). Columns: left – Wakitani score, right – Sellers score; rows: first – “defect fill”, second – “surface”, last – “total points”. Significant correlations exist between all scores for “defect fill” and “total points”, while no correlation was found for “surface”. For details and linear correlation analyses see Table III. Osteoarthritis and Cartilage 2017 25, 581-588DOI: (10.1016/j.joca.2016.10.014) Copyright © 2016 Osteoarthritis Research Society International Terms and Conditions