This study examined biomechanical properties of regenerated tissue in the sheep model 12 months after standardized treatment of local, full-thickness cartilage defects by microfracturing (MF) and drilling (D) the subchondral bone. After drilling, a modulus of elasticity similar to that of the native cartilage (N) was measured. Here, MF reached significantly lower values compared to N and D. The largest percentage filling of the defect was achieved by drilling with a high density of holes in the defect area. Lower depth of penetration into the subchondral bone caused significantly lower cartilage thickness.
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This study examined biomechanical properties of regenerated tissue in the sheep model 12 months after standardized treatment of local, full-thickness cartilage defects by microfracturing (MF) and drilling (D) the subchondral bone. After drilling, a modulus of elasticity similar to that of the native cartilage (N) was measured. Here, MF reached significantly lower values compared to N and D. The largest percentage filling of the defect was achieved by drilling with a high density of holes in the...
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