Table 3 Primary and secondary outcomes in the per-protocol population
Outcomes | CBS group (N = 57) | OPTCS group (N = 60) | p value |
|---|---|---|---|
Primary | |||
 Fixation failure (%) | 6 (10.5) | 15 (25.0) | 0.041 |
 Fracture nonunion (%) | 1 (1.8) | 11 (18.3) | 0.003 |
 ANFH (%) | 4 (7.0) | 7 (11.7) | 0.389 |
Secondary | |||
 Fixation loosening (%) | 11 (19.3) | 35 (58.3) |  < 0.001 |
 Lateral withdrawal | 11 (19.3) | 35 (58.3) |  < 0.001 |
 Medial migration | 1 (1.8) | 0 (0.0) | 0.305* |
Shortening and varus collapse (%) | |||
 None/mild | 40 (70.2) | 25 (41.7) | 0.007 |
 Moderate | 11 (19.3) | 20 (33.3) | |
 Severe | 6 (10.5) | 15 (25.0) | |
 HHS | 93 (82.8–95) | 83 (73–93) | 0.001 |
HHS grade (%) | |||
 Excellent | 39 (68.4) | 22 (36.7) | 0.008 |
 Good | 3 (5.3) | 7 (11.7) | |
 Fair | 11 (19.3) | 22 (36.7) | |
 Poor | 4 (7.0) | 9 (15.0) | |
 EQ-5D-5L | 0.814 (0.609–1.000) | 0.581 (0.542–0.814) |  < 0.001 |
 EQ-VAS | 85 (80–90) | 80 (65–90) | 0.002 |