A. Pfirrmann grade | ||||||
 | 1 year after surgery | |||||
2 | 3 | 4 | 5 | Total | ||
Before surgery | 2 | Â | 2 | Â | Â | 2 |
3 | Â | 26 | 13 | Â | 39 | |
4 | Â | Â | 17 | 2 | 19 | |
5 | Â | Â | Â | 2 | 2 | |
Total | Â | 28 | 30 | 4 | 62 | |
B. Modic type | ||||||
 | 1 year after surgery | |||||
None | 1 | 2 | 3 | Total | ||
Before surgery | None | 40 | 4 | 3 | 1 | 48 |
1 | Â | 2 | 1 | Â | 3 | |
2 | Â | 1 | 8 | 1 | 10 | |
3 | Â | 1 | Â | Â | 1 | |
Total | 40 | 8 | 12 | 2 | 62 |