At postoperative week 8, bone tissue samples were removed and fixed with paraformaldehyde. Then, bone samples were completely decalcified in 15% EDTA solution. After decalcification, bone tissue samples were embedded in paraffin wax and cut into tissue sections. The tissue sections were stained with Masson trichrome, H&E and sirius red in accordance with standard protocols, and samples were observed using a light microscope and polarization microscope.
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