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Fig. 5 | Journal of Orthopaedic Surgery and Research

Fig. 5

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

Fig. 5

At 24 weeks postoperatively, the n-HA+PA66 biomaterial in the lower layer was tightly connected with adjacent tissue and the PVA biomaterial in the upper layer was tightly connected with the n-HA+PA66 biomaterial in the lower layer (SEM × 150) (a). In the PVA implant group, a poor connection and gap with the adjacent tissue were observed (SEM × 150) (b). In the control group, the lower part of defect was filled with sclerotin and the upper part contained a disordered, scar-like fibrous tissue (SEM × 150) (c)

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