PCL Sag Test

Video demonstrating the PCL sag test. View the complete knee examination learning module at https://sites.google.com/a/umich.edu/fammed-modules/

Any medical information in this material is intended to inform and educate and is not a tool for self-diagnosis or a replacement for medical evaluation, advice, diagnosis or treatment by a healthcare professional. Please speak to your physician if you have questions about your medical condition.

CC: BY-NC University of Michigan Family Medicine Residency Program. This material is licensed under a Creative Commons Attribution - Noncommercial 3.0 License http://creativecommons.org/licenses/by-nc/3.0/.

(English captions by Trisha Paul from the University of Michigan)

The PCL Sag test evaluates for a tear of the posterior cruciate ligament. With both

knees flexed to ninety degrees and feet planted on the table, view the knees from the side

to compare the position of the tibia.

Increased posterior sag from one of the tibias
is considered a positive test.