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Table 2 Degree and extent of facial weakness

From: Incidence of postoperative facial weakness in parotid tumor surgery: a tumor subsite analysis of 794 parotidectomies

No.(%)

House-Brackmann grading system

Facial weakness

Temporarya (n = 73)

Permanentb (n = 41)

Incomplete facial nerve weakness (grade ≤ 4)

51 (69.9%)

25 (61.0%)

Complete facial nerve weakness (grade 5–6)

22 (30.1%)

16 (39.0%)

Subsites (numbers overlapped)

Forehead wrinkling

22 (30.1%)

19 (46.3%)

Eye closure

26 (35.6%)

18 (43.9%)

Lip deviation

73 (100%)

40 (97.6%)

  1. aTemporary facial weakness: Status of facial expression at postoperative day 1 to 5
  2. bPermanent facial weakness: Status of facial expression at more than 6 months postoperatively