Biomechanical comparison of four different posterior malleolus fixation techniques: a finite element analysis - Mansur, Henrique; Lucas, Phelipe Pinheiro Alves; Vitorino, Ricardo Carvalho; Barin, Fabrício Reichert; Freitas, Anderson; Battaglion, Leonardo Rigobello; Ramos, Lucas Sacramento (Foot and Ankle Surgery, 2022)