Influence of rupture patterns of the medial patellofemoral ligament (MPFL) on the outcome after operative treatment of traumatic patellar dislocation. - Petri, M.; Falck, C.; Broese, M.; Liodakis, E.; Balcarek, P.; Niemeyer, P.; Hofmeister, M.; Krettek, C.; Voigt, C.; Haasper, C.; Zeichen, J.; Frosch, K.; et al. (Knee Surgery, Sports Traumatology, Arthroscopy, 2013)