Type Description I Single ligament injury (ACL or PCL) II Injury to ACL and PCL III Injury to ACL, PCL, and either the LCL or MCL *KD-III injuries are sub classified as KD-III-M or KD-III-L depending on whether the MCL or LCL/posterolateral corner are injured IV Injury to ACL, PCL, LCL and MCL V Multiligamentous injury with periarticular fracture
Schenck classification
Wassel classification
Seinsheimer classification
Frykman classification
Nissen-Lie classification
Spaulding classification
Pipkin classification
Herbert classification