Fig. 2

Site of facial nerve injury at our center and outside centers. For 8 patients injured at our center, tympanic segment injury was found in 5 (62.5%) cases, geniculate ganglion injury in 2 (25.0%) cases, and fallopian canal intact in 2 (25.0%) cases; besides, one (12.5%) patient suffered from multisegment injury. For 37 patients transferred, tympanic segment and second genu were the most common injury site, accounted for 27 (73.0%) cases and 24 (64.9%) cases respectively, mastoid segment and geniculate ganglion injury accounted for 8 (21.6%) cases and 4 (10.8%) cases, and 21 (56.8%) patients suffered from multisegment injury