Baseline and 5-week active extension deficit for the joints that had worsened by ≥20° at the 2-year measurement (compared with the 5-week measurement) and the joints that had not worsened between these two measurement times; hands treated with a single collagenase injection
| Worsened ≥20° after the 5-week postinjection measurement | Not worsened after the 5-week postinjection measurement | p Value | |
|---|---|---|---|
| MCP, n | 7 | 38 | |
| Baseline | 60 (40, 65) | 55 (40, 70) | 0.87 |
| 5-week | 0 (0, 0) | 0 (0, 10) | 0.57 |
| PIP, n | 7 | 38 | |
| Baseline | 60 (30, 75) | 10 (0, 40) | 0.017 |
| 5 week | 15 (15, 55) | 0 (0, 15) | 0.004 |
Values are median (25th, 75th centiles) active extension deficit.
MCP, metatarsophalangeal joint; PIP, proximal interphalangeal joint.