Active extension deficit in the treated fingers immediately before collagenase injection (baseline) and at 5 weeks and 2 years after injection
| Baseline n=50 | 5 week n=50 | 2 year n=50 | Mean difference (95% CI), p value Baseline—2 year 5 week—2 year | ||
|---|---|---|---|---|---|
| MCP | 54 (23) | 6 (12) | 9 (16) | 45 (38 to 52) <0.001 | −3.1 (−7.8 to 1.6) 0.20 |
| PIP | 30 (28) | 13 (17) | 16 (21) | 14 (9 to 20) <0.001 | −3.3 (−6.7 to 0.1) 0.056 |
| MCP+PIP | 84 (37) | 18 (22) | 25 (25) | 59 (51 to 68) <0.001 | −6.4 (−12 to −0.06) 0.031 |
Values are mean (SD) unless specified otherwise.
MCP, metacarpophalangeal joint; PIP, proximal interphalangeal joint.