Posterolateral Drawer Test |
Examination type |
Ligamentous
|
Patient & Body Segment Positioning |
Patient lies supine with the involved knee flexed
90 degrees and foot rotated 15 degrees externally, hip flexed at
45 degrees.
|
Examiner Position |
Examiner sits on
patients involved leg with hands going around the proximal tibia
and thumbs resting in the joint line on the tibia plateau. |
Tissues
Being Tested |
Posterior
cruciate ligament |
Performing the Test |
Examiner applies posterior force to the knee |
Positive Test |
When there is a posterior shift and a posterior lateral rotary
force. |
Interpretation |
Torn or damaged
PCL |
Common errors in
performing exam |
Not having quads and hamstring relaxation, not applying enough
posterior force, not having the tibia externally rotated enough. |
Factors possibly
resulting in misinterpretation |
If there is an LCL tear the tibia
might rotate laterally due to the lack of lateral stability.
Also applying more lateral force then posterior force might give
you a false postive test. |
Related tests |
external
rotation recurvatum test and the reverse pivot shift test |
References |
|
Links: |
http://www.sportsdoc.umn.edu/Clinical_Folder/Knee_Folder/Knee_Exam/posterolateral%20drawer.htm
http://www.emedicine.com/sports/topic105-Clinical.htm |
Click On PICTURE
TO VIEW MOVIE |
|
|