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. 2024 Dec 21;145(1):79. doi: 10.1007/s00402-024-05619-5

Table 1.

The Fanelli and Larson classification [14] classifies the damage in posterolateral structures

Fanelli and Larson classification Scale of damage
Type A  > 10° Increase in External Rotation (ER) of Tibia
Type B  > 10° increase in ER of Tibia + mild-moderate instability in varus stress
Type C  > 10° increase in ER of Tibia + severe instability in varus stress