Characteristics of the participants and non-participants in the 2-year follow-up physical examination
| Participants | Non-participants | |
|---|---|---|
| Number of hands/patients | 50/48 | 9/9 |
| Sex, men: women | 38:12 | 8:1 |
| Age, median (range) | 68 (51–83) | 66 (55–84) |
| Hand treated, right: left | 34:16 | 8:1 |
| Finger treated, small: ring: middle: index | 25:24:1:1 | 5:3:1:0 |
| Previous fasciectomy on treated finger, n (%) | 6 (12) | 1 (11) |
| Additional treatment visits to therapist, n (%) | 3 (6) | 0 (0) |
| Repeat injection, n (%) | 5 (10)* | 1 (11) |
| Total extension deficit† | ||
| Before injection | 80 (54, 108) | 68 (49, 119) |
| 5 weeks after injection | 15 (0, 29) | 20 (9, 63) |
*Interval: 4 weeks (one patient), 2 months (one patient), 6 months (three patients), all five had MCP and PIP contracture at baseline (three had reinjection because of inadequate PIP correction and two because of inadequate MCP and PIP correction).
†Median (25th, 75th centiles) active extension deficit (degrees) of the metacarpophalangeal and proximal interphalangeal joints of the treated finger. For all treated fingers, the minimum total extension deficit was 30°.