Cord injuries on 3D image Location Damage Outside cord (%) Inside cord (%) Behind cord (%) Total (180 cords of 60 patients) Swelling 21 11, 7 20 11, 1 22 12, 2 63 35, 0 Rupture 4 2, 2 1 0, 6 2 1, 1 7 3, 9 Atrophy 1 0, 6 0 0 0 0 1 0, 6 No damage 34 18, 9 39 21, 7 36 20, 0 109 60, 6 3.2.10.