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The cut‐off value of the joint line convergence angle for ICRS grade 1 (a, e), grade 2 (b, f), grade 3 (c, g), and grade 4 (d, h). The analysis was performed using receiver operating characteristic analysis. AUC, area under the curve; CI, confidence interval; ICRS, International Cartilage Repair Society grade; JLCA, joint line convergence angle; MFC, medial femoral condyle; MTP, medial tibial plateau.
