Fig. 4From: Escherichia coli-derived recombinant human bone morphogenetic protein-2 combined with bone marrow-derived mesenchymal stromal cells improves bone regeneration in canine segmental ulnar defectsMechanical testing. This experiment was carried out in the 560 μg with 107 and 105 cells groups and the 140 μg with 107 and 105 cells groups, because the 560 μg/0 cells group and 560 μg/0 cells group are cited from our previous study The maximum loads at failure of the regenerated bone using a three-point bending test (mean ± SD) are shown. The regenerated bone in the 560 μg with 107 and 105 cells groups is mechanically stronger than that in the 140 μg/105 cells group. *P < 0.05; †P < 0.01Back to article page