Correlation of Knee and Hindfoot Deformities in Advanced Knee OA: Compensatory Hindfoot Alignment and Where It Occurs. - Norton, Adam; Callaghan, John; Amendola, Annunziato; Phisitkul, Phinit; Wongsak, Siwadol; Liu, Steve; Fruehling-Wall, Catherine (Clinical Orthopaedics & Related Research®, 2015)