Albuquerque RF da M e, Pacheco AP, Hernandez AJ, Amatuzzi MM, Pécora JR, Kokron AEV. Appraisal of surgical treatment of 47 cases of patellofemoral instability . Rev. Hosp. Clín. 2002;57(3):103-107. doi:10.1590/S0041-87812002000300004