Absence or focal defect of the plantar plate seen on standard magnetic resonance imaging (MRI) compared to contrast agent extravasation on MR arthrography in 28 lesser MTP joints in patients with RA.
| MR Arthrography Contrast Agent Extravasation | No Contrast Agent Extravasation | Total | |
|---|---|---|---|
| Standard MR | |||
| Absence or focal defect of plantar plate | 14 | 1 | 15 |
| Normal plantar plate | 4 | 9 | 13 |
| Total | 18 | 10 | 28 |