Figure 4.
Ex vivo µCT images of distal metaphysis and epiphysis. ZX00 (a–c) and Ti (d–f) screws 4, 6 and 12 weeks after implantation. Images of metaphyseal and epiphyseal screws of the same animals were stitched together. The stitching line is marked with a white dotted line. Increased cortical thickness was detected around ZX00-screw after 12 weeks (black triangle). Small gas pockets were found in the cortical bone around the ZX00-screw after 4, 6 and 12 weeks (white arrows). Slight alterations in trabecular bone structure around Ti-screws were detected 6 and 12 weeks after implantation (e and f; black arrows). Scanning artifacts were found only around Ti-implants (d–f; white squares). The physis was detected in all animals (a–f; white triangle), interrupted by the implant.