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International Journal of Bioprinting                                Effects of structure on the interbody cage




            is roughly the same on both horizontal and vertical   magnification. As can be observed from the image, the
            scales, which is a square pore of 450–490 μm, ensuring   surface of each set of cages was reasonably smooth before
            anisotropy in the bone growth environment. Therefore,   degradation, and the HA was disseminated more equally
            this structure is theoretically more suitable for the spinal   in PCL. After 28 days of in vitro degradation, the cages
            fusion environment.                                of each group were still able to preserve the structural
                                                               integrity of the appearance, although the surface revealed
               Figure 5 illustrates the surface morphology of each set   visible pits, grooves, and other corrosion events. A
            of cages before and after degradation at 80× and 2000×   larger number of crossing layers of the beams facilitates

































































                         Figure 5. Surface morphology of each cage group before and after degradation at 80× and 2000× magnification.


            Volume 10 Issue 4 (2024)                       178                                doi: 10.36922/ijb.1996
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