Table 2.

Proposed Stratified Unicruciate KD and MLKI Subclassification Scheme ^{a 16,49}

Suffix b	Schenck KD Subclass c	MLKI Subclass d	Ligaments Torn
-A	KD I−A	N/A d	ACL
-AM	KD I−AM	MLK 1−AM	ACL/MCL
-AL	KD I−AL	MLK 1−AL	ACL/LCL
-ALM	KD I−ALM	MLK 1−ALM	ACL/LCL/MCL
-P	KD I−P	N/A d	PCL
-PM	KD I−PM	MLK 1−PM	PCL/MCL
-PL	KD I−PL	MLK 1−PL	PCL/LCL
-PLM	KD I−PLM	MLK 1−PLM	PCL/LCL/MCL

^aSuffix “A” or “P” designates torn cruciate ligament (ACL or PCL); suffix “M” or “L” designates torn collateral ligament (MCL or LCL). ACL, anterior cruciate ligament; AL, ACL/LCL; ALM, ACL/LCL/MCL; AM, ACL/MCL; KD, knee dislocation; LCL, lateral collateral ligament; MCL, medial collateral ligament; MLK, multiligament knee; MLKI, multiligament knee injury; PCL, posterior cruciate ligament; PL, PCL/LCL; PLM, PCL/LCL/MCL; PM, PCL/MCL.

^bDesignates a clinically and/or radiologically confirmed tibiofemoral dislocation.

^cDesignates multiligamentous knee injury without clinically and/or radiologically confirmed tibiofemoral dislocation.

^dNot applicable (N/A) as MLKI requires 2 or more complete ligament tears