Table 3 Injury of the marginal mandibular branches of the facial nerve (n = 197)

Finding and exposing the marginal mandibular branches of the facial nerves at the mandibular angles of the platysma flaps

102 (51.78)

99 (97.06)

1 (0.98%)

2 (1.96%)

Finding and exposing the marginal mandibular branches of facial nerves at the intersections of the distal ends of facial arteries and veins with the mandible

64 (32.49)

61 (95.31)

1 (1.56%)

2 (3.13%)

Not exposing the marginal mandibular branches of the facial nerves

31 (15.73)

26 (83.87)

2 (6.45%)

3 (9.68%)

P

0.0184

χ²

7.9875