Ilio-psoas impingement with a dual-mobility liner: an original case report and review of literature Michel Henri Fessy, Louis Riglet, Laure-Lise Gras, Hadrien Neyra, Jean-Baptiste Pialat and Anthony Viste SICOT-J, 6 (2020) 27 Published online: 10 July 2020 DOI: 10.1051/sicotj/2020025