Answer to the Letter to the Editor of Changyu Pan et al. concerning "Global tilt: a single parameter incorporating spinal and pelvic sagittal parameters and least affected by patient positioning" by Obeid I et al. (Eur Spine J; [2016] 25:3644-3649)

Boissiere, L; Bourghli, A; Obeid, I

Boissiere, L (reprint author), Bordeaux Univ Hosp, Spine Unit 1, Pl Amelie Raba Leon, F-33076 Bordeaux, France.; Boissiere, L (reprint author), Polyclin Jean Villar, ELSAN, Ave Maryse Bastie, F-33520 Brugge, France.

EUROPEAN SPINE JOURNAL, 2019; 28 (1): 190