Table 1.
The patient’s demographic data.
| Conventional planning group (n = 22) | Planning with 3D printing group (n = 20) | P-value | ||
|---|---|---|---|---|
| Gender, n (%) | 0.461a | |||
| Male | 13 (59.09) | 14 (70.00) | ||
| Female | 9 (40.91) | 6 (30.00) | ||
| BMI (kg/m2), M ± SD | 25.02 ± 1.72 | 24.96 ± 2.03 | 0.929b | |
| Age (year), M ± SD | 43.00 ± 7.86 | 42.85 ± 7.71 | 0.95b | |
| Side of injury, n (%) | 0.721a | |||
| Right | 12 (54.55) | 12 (60.00) | ||
| Left | 10 (45.45) | 8 (40.00) | ||
| Cause of imjury, n (%) | 0.985a | |||
| Falling from height | 9 (40.91) | 8 (40.00) | ||
| Traffic accident | 8 (36.36) | 7 (35.00) | ||
| Other | 5 (22.73) | 5 (25.00) | ||
| Time from admission to hospital to surgery (day), M ± SD | 26.91 ± 5.65 | 24.65 ± 4.39 | 0.207c | |
| Schatzker classification, n (%) | 0.647a | |||
| IV | 9 (40.91) | 6 (30.00) | ||
| V | 6 (27.27) | 8 (40.00) | ||
| VI | 7 (31.82) | 6 (30.00) | ||
| No. of post. column plate, n (%) | 0.382a | |||
| 0 | 6 (27.27) | 8 (40.00) | ||
| 1 | 16 (72.73) | 12 (60.00) | ||
| No. of med. column plate, n (%) | 1 | 22 (100) | 20 (100) | n/a |
| No. of lat. column plate, n (%) | 0.461a | |||
| 0 | 9 (40.91) | 6 (30.00) | ||
| 1 | 13 (59.09) | 14 (70.00) | ||
| Approach method, n (%) | 0.382a | |||
| Antero-middle | 6 (27.27) | 8 (40.00) | ||
| Antero-middle + posteromedial | 16 (72.73) | 12 (60.00) | ||
| Follow-up time (month), M ± SD | 23.45 ± 8.28 | 25.40 ± 6.87 | 0.308c |
achi-squared test, bIndependent t test, cMann-Whitney test. M ± SD: mean ± standard deviation; n/a: not applicable; post.: posterior; med.: medial; lat.: lateral; No.: number; n: patient number.