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Table 1 Summary of measurements for each rater for pre- and postoperative sagittal radiographs of both rounds of measurements

From: Reproducibility of thoracic kyphosis measurements in patients with adolescent idiopathic scoliosis

Variable

Rater 1

Cobb angle, mean ± SD

Rater 2

Cobb angle, mean ± SD

Rater 3

Cobb angle, mean ± SD

Round 1

Round 2

Round 1

Round 2

Round 1

Round 2

T1–T12

 Preoperative

29 ± 11

29 ± 11

30 ± 11

32 ± 10

34 ± 9

31 ± 10

 Postoperative

26 ± 7

26 ± 8

30 ± 9

32 ± 8

31 ± 6

31 ± 7

T2–T12

 Preoperative

28 ± 12

28 ± 12

31 ± 13

30 ± 10

33 ± 14

28 ± 11

 Postoperative

26 ± 8

26 ± 9

29 ± 8

31 ± 8

28 ± 6

28 ± 8

T4–T12

 Preoperative

24 ± 13

23 ± 12

26 ± 13

25 ± 12

29 ± 15

26 ± 13

 Postoperative

19 ± 7

18 ± 6

21 ± 8

19 ± 7

21 ± 6

20 ± 6

T5–T12

 Preoperative

23 ± 12

21 ± 12

25 ± 12

23 ± 13

25 ± 14

24 ± 14

 Postoperative

16 (6)

16 ± 7

17 ± 7

16 ± 6

18 ± 6

18 ± 6

T1-nonfixed

 Preoperative

30 ± 12

30 ± 11

30 ± 12

32 ± 10

35 ± 10

32 ± 11

 Postoperative

27 ± 7

27 ± 8

31 ± 9

32 ± 7

32 ± 7

31 ± 7

Nonfixed TK

 Preoperative

32 ± 11

31 ± 11

35 ± 12

35 ± 10

37 ± 11

34 ± 13

 Postoperative

28 ± 8

28 ± 9

32 ± 10

34 ± 9

33 ± 7

32 ± 8

L1–S1

 Preoperative

58 ± 11

56 ± 10

55 ± 11

58 ± 12

55 ± 10

56 ± 10

 Postoperative

55 ± 8

53 ± 9

51 ± 9

53 ± 9

49 ± 9

52 ± 8

Nonfixed LL

 Preoperative

60 ± 11

60 ± 11

60 ± 12

62 ± 12

58 ± 12

59 ± 11

 Postoperative

57 ± 9

55 ± 9

55 ± 9

57 ± 9

52 ± 9

54 ± 9

  1. SD standard deviation, TK thoracic kyphosis, LL lumbar lordosis