Table 1 Staging system for characterizing osteochondral lesions
From: Bilateral juvenile osteochondrosis dissecans in monozygotic twins: a case report
Stage | Description |
|---|---|
1 | Thickening of the cartilage, cartilage surface intact |
2 | Breached articular cartilage with low-signal defect margin around the fragment as an indication of fibrous attachment |
3 | Breached articular cartilage with high-signal fluid margin around the fragment |
4 | Detached osteochondral fragment with destruction of the articular surface |