Table 1 Comparison of baseline data and surgical data between three groups
Groups | Double-threaded Group(n = 49) | Single-threaded Group(n = 49) | Traditional Group (n = 49) | Test statistic | P-value | |
|---|---|---|---|---|---|---|
Age | M(Q1,Q3) | 48.0(30.0,59.0) | 54.0(37.0,58.0) | 52.0(40.5,59.0) | 1.619 | 0.445 |
Gender | Male | 32 (55.3%) | 27(55.1%) | 32(65.3%) | 1.442 | 0.489 |
Female | 17 (34.7%) | 22 (44.9%) | 17 (34.7%) | |||
BMI | M(Q1,Q3) | 23.8(22.0,25.4) | 23.8(22.3,24.4) | 22.4(21.3,24.4) | 5.194 | 0.074 |
Smoking | No | 45 (91.8%) | 43 (87.8%) | 45 (91.8%) | 0.632 | 0.729 |
Yes | 4 (8.2%) | 6 (12.2%) | 4 (8.2%) | |||
Drinking | No | 42 (85.7%) | 45 (91.8%) | 45 (91.8%) | 1.336 | 0.513 |
Yes | 7 (14.3%) | 4 (8.2%) | 4 (8.2%) | |||
Mechanism of injury | Low energy | 21 (42.9%) | 18 (36.7%) | 16 (32.7%) | 1.104 | 0.576 |
High energy | 28 (57.1%) | 31 (63.3%) | 33 (67.3%) | |||
Side of Injury | Left | 23 (46.9%) | 28 (57.1%) | 19 (38.8%) | 3.327 | 0.189 |
Right | 26 (53.1%) | 21 (42.9%) | 30 (61.2%) | |||
Garden Classification | Garden III | 22 (45.45%) | 18 (32.2%) | 15 (30.77%) | 2.150 | 0.341 |
Garden IV | 27 (54.55%) | 31 (67.8%) | 34(69.23%) | |||
Pauwels Classification | Pauwels I | 7 (14.3%) | 18 (36.7%) | 13 (26.5%) | 6.905 | 0.141 |
Pauwels II | 20 (40.8%) | 17 (34.7%) | 17 (34.7%) | |||
Pauwels III | 22(44.9%) | 14 (28.6%) | 19 (38.8%) | |||
Cortical Comminution | No | 11 (22.4%) | 16 (32.7%) | 21 (42.9%) | 4.640 | 0.098 |
Yes | 38 (77.6%) | 33 (67.3%) | 28 (57.1%) | |||
Time from injury to surgery (days) | M(Q1,Q3) | 3.0(2.0,4.0) | 4.0(2.5,5.0) | 3.0(2.0,4.0) | 3.660 | 0.160 |
Surgical time (min) | (\(\:\stackrel{-}{\text{x}}\)±s) | 61.3 ± 16.8 | 61.3 ± 16.3 | 60.6 ± 18.0 | 0.033 | 0.968 |
Bleeding (ml) | M(Q1,Q3) | 60.0(48.5,76.5) | 60.0(54.0,72.5) | 59.0(45.0,78.0) | 2.109 | 0.348 |
Reset Grading | Garden index I | 44 (89.8%) | 42 (85.7%) | 43 (87.8%) | 0.380 | 0.827 |
Garden index II | 5 (10.2%) | 7 (14.3%) | 6 (12.2%) | |||
Reduction Quality | Neutral Support | 35 (71.4%) | 33 (67.3%) | 33 (67.3%) | 2.095 | 0.718 |
Positive Support | 10 (20.4%) | 14 (28.6%) | 11 (22.4%) | |||
Negative Support | 4 (8.2%) | 2 (4.1%) | 5 (10.2%) | |||
TAD(mm) | M(Q1,Q3) | 12.0(11.0,14.2) | 13.0(11.6,22.5) | 13.4(11.8,19.0) | 4.215 | 0.122 |
Healing time (weeks) | M(Q1,Q3) | 8.0(6.0,10.0) | 6.0(6.0,10.0) | 8.0(6.0,12.0) | 3.017 | 0.221 |
Harris score | M(Q1,Q3) | 93.9(89.5,96.5) | 90.7(87.6,94.4) | 88.7(82.1,93.7) | 17.910 | <0.001 |
Paker score | M(Q1,Q3) | 9.0(8.0,9.0) | 9.0(8.0,9.0) | 8.0(8.0,9.0) | 12.020 | 0.002 |