The prevalence (%) of osteophytes (grade 1–3) in each finger joint by different modalities in patients with HOA
| Joint | MRI* (n=852) | Modality US (n=3771) | CR (n=3405) | BE (n=3785) | |
|---|---|---|---|---|---|
| CMC | 1 | n/a | 72.1% | 66.5% | 38.2% |
| MCP | 1 | n/a | 24.2% | 6.6% | 11.9% |
| 2 | n/a | 13.4% | 8.3% | 9.5% | |
| 3 | n/a | 6.8% | 2.2% | 2.8% | |
| 4 | n/a | 3.6% | 1.3% | 4.0% | |
| 5 | n/a | 11.1% | 4.4% | 0.0% | |
| 1–5 (mean) | n/a | 11.8% | 4.5% | 4.9% | |
| (P)IP | 1 | n/a | 79.7% | 45.2% | 36.5% |
| 2 | 82.2% | 55.1% | 34.5% | 39.0% | |
| 3 | 74.8% | 61.4% | 31.0% | 47.2% | |
| 4 | 73.8% | 53.1% | 29.7% | 35.4% | |
| 5 | 85.8% | 61.5% | 35.4% | 44.9% | |
| 1–5 (mean) | 79.2%† | 62.2% | 34.3% | 40.6% | |
| DIP | 2 | 96.2% | 93.7% | 53.9% | 82.7% |
| 3 | 95.3% | 90.6% | 48.9% | 74.8% | |
| 4 | 86.9% | 76.3% | 32.8% | 60.6% | |
| 5 | 97.2% | 89.7% | 59.2% | 70.1% | |
| 2–5 (mean) | 93.9% | 87.5% | 48.7% | 72.0% |
↵* Only dominant hand.
↵† One joint missing, thus sum score is not comparable with other modalities.
BE, bony enlargement; CMC, carpometacarpal joint; CR, conventional radiography; DIP, distal interphalangeal joint; HOA, hand osteoarthritis; MCP, metacarpophalangeal joint, MRI, magnetic resonance imaging; US, Ultrasound; n/a, not available; (P)IP=(proximal) interphalangeal joint.