Table 5 Comparison of manually measured imaging outcomes between the two groups
|  | OSE group (n = 52) | UBE group (n = 52) | P value |
|---|---|---|---|
DCSA (mm2) | |||
 Pre-op | 75.90 ± 11.77 | 76.13 ± 11.85 | 0.922 |
 3 days | 169.33 ± 13.37 | 172.45 ± 14.99 | 0.265 |
 12 months | 165.66 ± 12.80 | 168.37 ± 14.25 | 0.310 |
ROM (°) | |||
 Pre-op | 8.53 ± 1.47 | 8.42 ± 1.24 | 0.687 |
 3 days | 8.89 ± 1.49 | 8.79 ± 1.28 | 0.718 |
 12 months | 8.58 ± 1.52 | 8.45 ± 1.26 | 0.633 |
ST (mm) | |||
 Pre-op | 1.37 ± 0.20 | 1.35 ± 0.22 | 0.653 |
 3 days | 1.41 ± 0.21 | 1.39 ± 0.22 | 0.596 |
 12 months | 1.46 ± 0.21 | 1.44 ± 0.23 | 0.617 |