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Fig. 3 | Journal of Orthopaedic Surgery and Research

Fig. 3

From: Repair of articular cartilage and subchondral defects in rabbit knee joints with a polyvinyl alcohol/nano-hydroxyapatite/polyamide 66 biological composite material

Fig. 3

At 24 weeks after implantation of polyvinyl alcohol/nano-hydroxyapatite and polyamide 66, part of the polyvinyl alcohol surface was covered by collagen (×40) (a). At 24 weeks in the PVA implant group, the adjacent cartilage had thinned and continued to show degenerative changes (×40) (b). At 24 weeks in the control group, the fibrous tissue was poorly arranged and had formed transparent cartilage (×40) (c)

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