Trunk injuries on 3D images Location Damage Upper trunk (%) Middle trunk Số lượng (%) Lower trunk (%) Total (180 trunks of 60 patients) Swelling 9 5, 0 7 3, 9 6 3, 3 22 12, 2 Rupture 15 8, 3 5 2, 8 4 2, 2 24 13, 3 No damage 38 21, 1 49 27, 2 51 28, 3 138 76, 7 16 Table 3.22.