Kneeling stress knee x-rays - posterior cruciate ligament deficiency
Citation, DOI and case data
History of posterior cruciate ligament injury.
Loading Stack -
0 images remaining
Increase of 6 mm in the posterior tibial translation between kneeling neutral and stress views.
Anteromedial tibial EndoButton and tunnel from prior meniscus root repair surgery. Small marginal osteophyte at the medial femoral condyle.
This patient had a follow-up MRI (not shown), which demonstrated continuity of some of the posterior cruciate ligament (PCL) fibers, which is common post tear. The stress radiographs help confirm that the healed fibers are non-functional. More than 5 mm on single-leg kneeling stress radiographs is considered diagnostic for a PCL tear.