Table 2.
Demographic data.
| Traditional method | 3D printing method | P value | |
|---|---|---|---|
| Group 1 (n=9) | Group 2 (n=7) | ||
| Age (year), M±SD | 37.00±17.09 | 32.14±14.63 | 0.559a |
| Sex, n (%) | 0.213b | ||
| Male | 6 (66.7) | 7 (100) | |
| Female | 3 (33.3) | 0 (0) | |
| BMI (kg/m2) | 27.22±2.95 | 26.29±2.29 | 0.500a |
| Fracture classification, n (%) | 0.515 b | ||
| T-shaped + Pw | 2 (22.2) | 1 (14.3) | |
| Pc + Pw | 1 (11.2) | 1 (14.3) | |
| Pw | 6 (66.7) | 3 (42.9) | |
| Transverse + Pw | 0 (0) | 2 (28.6) | |
| Affected side, n (%) | 1.000b | ||
| Right | 6 (66.7) | 5 (71.4) | |
| Left | 3 (33.3) | 2 (28.6) | |
| Pw fragment size (%) | 61.66±21.69 | 60.35±18.35 | 0.900a |
| Dislocation, n (%) | 9 (100) | 7 (100) | n/a |
| Femoral head fracture, n (%) | 0.633b | ||
| no | 5 (55.6) | 5 (71.4) | |
| yes | 4 (44.4) | 2 (28.6) | |
| Number of PwSP, n (%) | 1.000b | ||
| 0 | 1 (11.1) | 1 (14.3) | |
| 1 | 6 (66.7) | 4 (57.1) | |
| 2 | 2 (22.2) | 2 (28.6) | |
| Number of PwBP, n (%) | 9 (100) | 7 (100) | n/a |
| Number of PcP, n (%) | 1.000b | ||
| 0 | 2 (22.2) | 2 (28.6) | |
| 1 | 7 (77.8) | 5 (71.4) |
Ac, anterior column; AcP, anterior column plate; BMI, body mass index; M±SD, mean ± standard deviation; n, patient number; n/a, not applicable; Pc, posterior column; PcP, posterior column plate; Pw, posterior wall; PwBP, posterior wall buttress plate; PwSP, posterior wall spring plate.
a Independent t test or chi-square test.
b Fisher's exact test.