Figure 4.
Treatment Concepts of Patellar Maltracking.
A: The patellofemoral joint comprises a convex patella gliding upon a concave trochlea. This could be compared to a train struggling to remain on track. B: Medial patellofemoral ligament reconstruction is comparable to a tether stabilizing the train. C: However, the Fulkerson realignment procedure is comparable to altering the track itself.