Flatfoot deformity represents a complex pathology often observed in active adult population. Conservative treatment does not always yield the intended outcome. Various surgical methods addressing mentioned pathology were actively developing during past decades. However, despite diversity of procedures there are many contradictions in respect of necessity and efficiency of a certain procedure especially in grades II and IV of the disease. The paper presents clinical, roentgenological and biomechanical features of acquired flatfoot deformity. The authors analyzed literature publications dedicated to different correction methods adopted in world orthopaedics.