Table 1.
Cadaver bone and 3D printed model measurements of volume, length, and circumfer-ence. The mean and standard deviates for each specimen’s measurements are included. The abso-lute difference and percent error between the two groups’ measurements are listed
| Cadavers |
Capitate | Lunate | Scaphoid | Trapezium | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| V(cc) | L(mm) | C (mm) | V(cc) | L(mm) | C (mm) | V(cc) | L(mm) | C (mm) | V(cc) | L(mm) | C (mm) | |
| Mean | 4.5 | 24.2 | 54.5 | 3.1 | 19.2 | 49.0 | 3.9 | 29.7 | 42.8 | 3.8 | 21.1 | 44.6 |
| SD | 1.0 | 2.1 | 4.5 | 0.5 | 2.8 | 7.2 | 1.1 | 4.4 | 4.6 | 1.0 | 4.0 | 5.9 |
| 3D Printed | ||||||||||||
| Mean | 4.3 | 26.1 | 55.0 | 3.6 | 20.0 | 49.2 | 4.4 | 29.8 | 44.5 | 3.9 | 21.0 | 44.9 |
| SD | 1.0 | 2.7 | 4.8 | 1.1 | 3.4 | 8.9 | 1.1 | 3.8 | 4.6 | 1.1 | 3.1 | 6.4 |
| Absolute difference | 0.2 | 1.9 | 0.5 | 0.5 | 0.8 | 0.2 | 0.5 | 0.1 | 1.7 | 0.1 | 0.1 | 0.3 |
| % error | 4.7 | 7.3 | 0.9 | 13.9 | 4.0 | 0.4 | 11.4 | 0.3 | 3.8 | 2.6 | 0.5 | 0.7 |
| p -value | 0.3 | 0.1 | 0.7 | 0.2 | 0.3 | 0.8 | 0.1 | 0.9 | 0.1 | 0.6 | 0.7 | 0.7 |
Abbreviations: V, volume; L, length; C, circumference; cc, cubic centimeter; mm, millimeter; SD, standard deviation; % error, percent error