Increased tibial tubercle-trochlear groove distance and sulcus angles were associated with patellar osteochondritis dissecans. Researchers compared patellar vs. medial femoral condyle ...
The tibial tubercle-trochlear groove (TT-TG ... patella is in extension and how far the patella must go to engage the femoral trochlea by 20° knee flexion. One can appreciate the patella entry ...