Experimental time | O’driscoll score parameters | CTR | IL1β | PEMF | IL1β + PEMF |
---|---|---|---|---|---|
24 h | Safranin-O staining | 2 (2–3) | 1 (1–2)** | 3 (2–3) | 2 (2–2)§ |
Surface regularity | 2 (2–3) | 1 (1–2)** | 3 (3–3) | 2 (2–2) | |
Chondrocyte clustering | 2 (1–2) | 0.5 (0–1)** | 2 (2–2) | 1 (1–2) | |
Cellularity | 2 (2–3) | 1 (1–1)** | 3 (2–3) | 2 (1–2)§§ | |
7 days | Safranin-O staining | 1 (1–2) | 0 (0–1) | 3 (2–3)°° | 1 (1–2)§ |
Surface regularity | 2 (1–3) | 1 (0–1)** | 3 (2–3) | 1 (1–2) | |
Chondrocyte clustering | 1 (1–1) | 0 (0–1)**,a | 2 (1–2)°° | 1 (1–2)§ | |
Cellularity | 2 (1–2) | 1 (0–1)** | 2 (2–3) | 1 (1–2) | |
21 days | Safranin-O staining | 1 (1–2) | 0 (0–1) | 2 (2–2)° | 1 (1–1)§§ |
Surface regularity | 2 (1–2) | 1 (1–1)** | 2 (2–2) | 2 (1–2)§§, b | |
Chondrocyte clustering | 1 (1–1) | 0 (0–0)* | 1 (1–1)b | 1 (1–2)§ | |
Cellularity | 1 (1–1) | 0 (0–1)**,a | 1.5 (1–2) | 1 (1–1)§§ |