A 17-year-old female with recurrent patellar subluxations is…
A 17-year-old female with recurrent patellar subluxations is examined. The therapist applies a lateral glide to the patella. In full extension, the translation is excessive. At 30 degrees of knee flexion, the same test is repeated, and the lateral translation is significantly reduced with a firmer end-feel. What is the BEST explanation for this increase in stability?