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Table 2 Magnetic resonance imaging analysis four years after transplantation of the graft in focal degenerative cartilage defects

From: Treatment of focal degenerative cartilage defects with polymer-based autologous chondrocyte grafts: four-year clinical results

Characteristic Magnetic resonance imaging score
  1 (normal) 2 (mild) 3 (moderate) 4 (abnormal)
Defect filling 11 (complete filling), including 3 with minimal hypertrophic changes (<125%) 5 (>50%) 1 (<50%) 0 (no filling)
Signal intensity 8 (normal) 8 (some hyperintense areas) 1 (hyperintense areas) 0 (no signal)
Subchondral edema 4 (no edema) 7 (mild edema) 5 (moderate edema) 1 (distinct edema)
Effusion 1 (no effusion) 11 (mild effusion) 4 (moderate effusion) 1 (distinct effusion)