Table 1 Measurements of the Preoperative PTA and PLMA

C3

44.8 ± 3.1 (40–50)

43.9 ± 2.8 (39–49)

77.8 ± 4.3 (72–86)

77.5 ± 4.5 (68–85)

C4

43.2 ± 3.4 (37–48)

43.5 ± 3.6 (39–51)

79.1 ± 3.7 (74–89)

79.6 ± 6.0 (72–93)

C5

42.3 ± 4.0 (33–51)

42.6 ± 3.1 (38–49)

83.3 ± 4.4 (76–94)

82.8 ± 4.6 (78–96)

C6

38.7 ± 4.4 (31–45)

38.7 ± 4.3 (29–47)

87.6 ± 6.2 (78–101)

86.7 ± 4.7 (82–102)

C7

33.9 ± 3.7 (25–42)

35.2 ± 2.7 (29–40)

90.3 ± 5.3 (80–102)

89.7 ± 5.2 (83–103)