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Animal 3 (hematoxylin and eosin). Tibia longitudinal section. Composite porous titanium skin and bone integrated pylon with fins (SBIP-3). Detail in green box 3 from Figure 13 (distal fin) implant (with 3 pairs of sided pegs). Short arrows = fibrous connective tissue fascicles in direct contact with head of implant (TP) and surface of fin (Pg). Long arrow = birefringent foreign polymer fibers.
