Three-Dimensional-Printed Poly-L-Lactic Acid Scaffolds with Different Pore Sizes Influence Periosteal Distraction Osteogenesis of a Rabbit Skull

Figure 2

Process of PDO. PDO can be divided into three stages: they are the latency period, distraction period, and consolidation period. Seven days after surgery operation, it is the time for the latency period. Then, we adopted a rate of 1.0 mm/day for 5 days in the distraction period. Finally, the animals were sacrifice and the skull samples were collected after 8 weeks of the consolidation period.