Clinical characteristics | |
---|---|
Gender | |
 male | 18 (48.6%) |
 female | 19 (51.4%) |
 Age (years) | 35.1 ± 15.0 (7–62) |
Side | |
 right | 21 (56.8%) |
 left | 16 (43.2%) |
Preoperative grade (H-B) | |
 V | 13 (35.1%) |
 VI | 24 (64.9%) |
Preoperative hearinga | |
 complete deafness | 18 (48.6%) |
 conductive hearing loss | 10 (27.0%) |
 mixed hearing loss | 9 (24.3%) |
Duration before revision surgery | |
  < 2 months | 19 (51.4%) |
 2–6 months | 10 (27.0%) |
  > 6 months | 8 (21.6%) |
Site of facial nerve injuryb | |
 tympanic segment | 27 (73.0%) |
 second genu | 24 (64.9%) |
 mastoid segment | 8 (21.6%) |
 geniculate ganglion | 4 (10.8%) |
Degree of facial nerve injuryc | |
 edema | 7 (18.9%) |
 sheath defective and edema | 5 (13.5%) |
 superficially transected | 2 (5.4%) |
 partially transected | 4 (10.8%) |
 completely transected | 19 (51.4%) |
Malformation of facial nerve | |
 anomalous course | 1 (2.7%) |
 bifurcation | 1 (2.7%) |
Inner ear injury | |
 yes | 18 (48.6%) |
 no | 19 (51.4%) |
Facial nerve management | |
 decompression (2 cases combined with axion realignment) | 14 (37.8%) |
 graft | 19 (51.4%) |
 Anastomosis | 4 (10.8%) |
Postoperative grade (H-B) | |
 I | 6 (16.2%) |
 II | 6 (16.2%) |
 III | 18 (48.6%) |
 IV | 5 (13.5%) |
 V | 2 (5.4%) |