Table 2 Comparison of patients between the standard and U-blade lag screw group.
Standard | U-blade lag screw | p value | |
|---|---|---|---|
Surgical time (min) | 54.1 ± 11.5 | 56.9 ± 14.2 | n.s. (0.060) |
Hospital stay (days) | 15.4 ± 7.4 | 17.0 ± 9.9 | n.s. (0.123) |
Fracture reduction gap (mm) | 2.9 ± 1.3 | 3.3 ± 2.3 | n.s. (0.067) |
Parker’s ratio AP 0 | 42.4 ± 6.3 | 43.7 ± 6.0 | n.s. (0.057) |
Parker’s ratio Lat 0 | 46.5 ± 6.1 | 45.7 ± 5.3 | n.s. (0.207) |
Parker’s ratio cut AP 0 | 43.4 ± 13.7 | – | |
Parker’s ratio cut Lat 0 | 44.2 ± 7.9 | – | |
TAD 0 | 19.5 ± 4.7 | 20.3 ± 5.2 | n.s. (0.119) |
TAD cut 0 | 20.2 ± 5.2 | – | |
CalTAD 0 | 20.6 ± 4.6 | 21.6 ± 4.9 | n.s. (0.072) |
CalTAD cut 0 | 20.9 ± 0.9 | – | |
Lateralization (12 month) (≥ 10 mm) | 12 (7.9%) | 5 (3.3%) | n.s. (0.081) |
Sliding distance | 5.6 ± 3.2 (n = 149) | 4.6 ± 2.4 (n = 152) | < 0.05 (0.004) |
A1 | 4.0 ± 2.4 (n = 65) | 3.4 ± 2.2 (n = 66) | n.s. (0.124) |
A2 | 6.1 ± 2.7 (n = 65) | 5.2 ± 2.2 (n = 66) | < 0.05 (0.042) |
A3 | 9.0 ± 4.3 (n = 19) | 6.7 ± 1.5 (n = 20) | < 0.05 (0.034) |
Cut-out rate | 3 (2.0%) | 0 (0.0%) | n.s. (0.082) |
Time to cut-out (weeks) (mean, SD) | 8.2 ± 1.5 | – | – |
Other complications | ONFH (1), Distal locking screw breakage (1) | Non-union (1), Distal locking screw breakage (1) | |
Koval’s grade in 1 year (mean, SD) | 3.4 ± 1.1 | 3.3 ± 1.3 | n.s. (0.740) |
HHS (1 year) | 74.9 ± 8.6 | 76.7 ± 8.9 | n.s. (0.076) |
