Eur J Pain. 2019 May;23(5):1031-1044. doi: 10.1002/ejp.1355. Epub 2019 Apr 1. Brinzeu A1, Cuny E2, Fontaine D3,4, Mertens P1, Luyet PP5, Van den Abeele C5, Djian MC6; French SCS Study Group. Abstract BACKGROUND: Spinal cord stimulation (SCS) is an established