Osteonecrosis of the knee
| Site | Number of knee joints (%) |
|---|---|
| Total | 103 (48) |
| Femoral condyle (ONFC) | 86 (40) |
| Lateral | 82 (38) |
| Medial | 52 (24) |
| Distal femoral metaphysis (ONFM) | 32 (15) |
| Tibial plateau (ONTP) | 2 (0.9) |
| Medial | 2 (0.9) |
| Lateral | 1 (0.5) |
| Proximal tibial metaphysis (ONTM) | 21 (10) |
| Patella (ONP) | 6 (3) |