Osteoarthritis grading system for joint space narrowing, osteophytes, and sclerosis
| Joint space narrowing |
|---|
| 0 no narrowing |
| 1 mild or doubtful narrowing (<33%) |
| 2 moderate narrowing (34–66%) |
| 3 severe narrowing (>66% but no complete narrowing) |
| 4 complete narrowing (100%) |
| Osteophytes ( acetabulum and/ or femoral head) |
| 0 no osteophyte |
| 1 mild osteophyte |
| 2 moderate osteophyte |
| 3 large osteophyte |
| Sclerosis |
| 0 no or doubtful sclerosis |
| 1 evidence of sclerosis |