Group | 1 | 2 | 3 | ||
---|---|---|---|---|---|
% Acellular cartilage | A | 2.1 (0.3) | 2.2 (0.4) | 2.0 (0.0) | |
B | 2.0 (0) | 2.0 (0) | 1.8 (1.8) | ||
Loss of matrix (erosion) | A | 0 | 0 | 0 | |
B | 0.7 (0.8) | 0.8 (0.9) | 0.4 (0.5) | ||
Clustering | A | 1.5 (0.7) | 2.1 (0.8) | 1.4 (0.8) | |
B | 1.2 (0.6) | 1.3 (0.9) | 0.9 (0.6) | ||
Pannus | A | 0.6 (0.7) | 0.1 (0.3) | 0.1 (0.3) | |
B | 1.1 (1.0) | 0.8 (0.8) | 0.2 (0.4) | ||
Orthochromasia (proteoglycan depletion) | A | 1.7 (0.9) | 1.0 (0.8) | 0.2 (0.4)2-150 | |
B | 1.9 (0.7) | 1.3 (0.8) | 0.2 (0.4)2-150 | ||
Severity of synovitis | A | 2.3 (0.8) | 1.1 (0.9) | 0.3 (0.7)2-150 | |
B | 2.2 (0.9) | 1.3 (1.1) | 0.6 (0.9) | ||
Vascular elements crossing the tidemark | A | 0.5 (0.5) | 0.6 (0.5) | 0.5 (0.5) | |
B | 0.4 (0.5) | 0.5 (0.5) | 0.1 (0.3) | ||
Enchondral bone marrow cavities | A | 0.4 (0.5) | 0.4 (0.5) | 0.3 (0.5) | |
B | 0.3 (0.4) | 0.5 (0.5) | 0.2 (0.4) | ||
Height of cartilage | A | 97.6 (2.9) | 89.5 (5.9) | 90.8 (9.1) | |
B | 97.3 (5.7) | 91.0 (13.1) | 100 (0) | ||
Total score | A | 8.2 (1.9) | 6.5 (1.4) | 4.0 (1.0)2-150 | |
B | 8.8 (2.5) | 7.4 (2.6) | 4.2 (2.2)2-150 |
↵2-150 p<0.05 between groups 2–3. Data shown as mean (SD).