| Characteristics | ER | MR | LR | P value |
|---|
| No. of patients | 31 | 78 | 24 | |
| Extension, ° | 6 ± 9 | 11 ± 14 | 9 ± 10 | .205 |
| Flexion, ° | 129 ± 11 | 125 ± 9 | 128 ± 9 | .094 |
| ROM, ° | 122 ± 18 | 114 ± 18 | 120 ± 17 | .067 |
| MEPS, points | 93 ± 9 | 91 ± 10 | 94 ± 8 | .350 |
| Excellent, n | 19 (61) | 41 (52) | 16 (67) | .329 |
| Good, n | 11 (35) | 32 (41) | 8 (33) |
| Fair, n | 1 (3) | 5 (6) | 0 (0) |
| Pain VAS, points | 0.9 ± 1.2 | 1.3 ± 1.7 | 0.8 ± 1.2 | .227 |
| Ulnar nerve symptoms (Dellon classification) | | | | .497 |
| None, n | 25 (81) | 65 (83) | 17 (71) |
| Grade I, n | 5 (16) | 9 (11) | 7 (29) |
| Grade II, n | 1 (3) | 4 (5) | 0 (0) |
- ER early release group, MR median release group, LR late release group, ROM range of motion, MEPS Mayo Elbow Performance Score, VAS visual analog scale
- The final postoperative follow-up in 2018, with the shortest and the longest follow-up periods at 12 months and 36 months, respectively
- Categorical variables are presented as number (%)
- Continuous variables are presented as mean ± standard deviation
