Preliminary mechanical test of proximal femur reinforcement with cemented x-shaped pmma - Freitas, Anderson; Camargo, Welvis Soares; Aquino, Ruben Jeri; Giordano Neto, Vincenzo; Bonavides Junior, Aluízio Fernandes; Shimano, Antônio Carlos (Acta Ortopédica Brasileira, 2018)