Description of a minimally invasive technique with a modified instrument for the osteosynthesis of proximal femoral fractures using the standard DHS and case series oleh RICARDO RAMON CAMACHO IRIGOYEN, RAFAEL DE LUCA DE-LUCENA, JEAN KLAY SANTOS MACHADO, GABRIEL SEVERO DA-SILVA, CARLOS ROBERTO SCHWARTSMANN, WILLIAM DIAS BELANGERO, LEANDRO DE FREITAS SPINELLI