Table 1.
Physical Data for Different Three-Dimensional Osteochondral Constructs and Pore Sizes
| 3D scaffolds | Smallest feature (mm) | Pore density (pores/mm3) | Total surface area (mm2) | Bulk volume (mm3) | SA/V ratio |
|---|---|---|---|---|---|
| Large | |||||
| Homogeneous | 1 | 0.5 | 1850.6 | 616.3 | 3.002 |
| Bi-phasic | 1–4 | 0.5 bone | 2094.4 | 716.2 | 2.924 |
| 0.001 cartilage | |||||
| Bi-phasic key | 1–4 | 0.5 bone | 2150.7 | 749.8 | 2.868 |
| 0.00 cartilage | |||||
| Intermediate | |||||
| Homogeneous | 0.71 | 0.53 | 2368.6 | 576.3 | 4.109 |
| Bi-phasic | 0.71–1.7 | 0.53 bone | 2700.8 | 863.9 | 3.126 |
| 0.003 cartilage | |||||
| Bi-phasic key | 0.71–1.7 | 0.53 bone | 2724.6 | 904.3 | 3.012 |
| 0.003 cartilage | |||||
| Small | |||||
| Homogeneous | 0.5 | 5.3 | 2817.7 | 571.1 | 4.933 |
| Bi-phasic | 0.5–2 | 5.3 bone | 2854.0 | 863.6 | 3.304 |
| 0.005 cartilage | |||||
| Bi-phasic key | 0.5–2 | 5.3 bone | 2921.7 | 947.4 | 3.083 |
| 0.005 cartilage | |||||
3D, three dimensional; SA/V, surface area to volume ratio.