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Table 9 Oswestry Disability Index (%)

From: Open versus minimally invasive TLIF: literature review and meta-analysis

Author

MITLIF

OTLIF

Nr. of Pat.

Preoperative (mean ± SD)

Last follow-up (mean ± SD)

Nr. of Pat.

Preoperative (mean ± SD)

Last follow-up (mean ± SD)

Yang et al. 2017 [15]

21

43.5 ± 15.1

12.0 ± 6.4

20

44.2 ± 14.3

13.5 ± 6.5

Adogwa et al. 2015 [19]

40

50.18 ± 16.74

38.57 ± 25.52

108

49.15 ± 15.21

34.27 ± 22.07

Terman et al. 2014 [21]

53

59 (−)

44 (−)

21

58 (−)

45 (−)

Wong et al. 2014 [22]

144

52.8 (−)

18 (−)

54

51.2 (−)

21 (−)

Sulaiman et al. 2014 [13]

57

53.7 (−)

26.4 (−)

11

57.8 (−)

46.1 (−)

Gu et al. 2014 [24]

44

43.7 ± 4.3

16.5 ± 2.0

38

44.3 ± 5.2

15.9 ± 1.9

Brodano et al. 2013 [25]

30

42 ± 6.2

10 ± 6.6

34

46 ± 7.1

12 ± 5.8

Seng et al. 2013 [26]

40

41.3 ± 20.1

13.6 ± 2.8

40

42.1 ± 16.3

12.3 ± 1.9

Rodriguez-Vela et al. 2013 [29]

21

28.85 ± 5.52

12.09 ± 7.59

20

27.19 ± 8.19

18.10 ± 12.45

Parker et al. 2013 [30]

50

32.3 ± 6.7

11.0 ± 9.4

50

34.3 ± 7.9

15.6 ± 10.3

Adogwa et al. 2012 [31]

14

20.50 ± 7.76

–

7

22.57 ± 9.32

11.93 (−)

Wang et al. 2012 [32]

42

41.1 ± 10.3

18.2 ± 5.9

39

40.2

17.4 ± 7.1

Lee et al. 2012 [6]

72

48.1 ± 18.8

21.4 ± 20.9

72

44.4 ± 18.0

20.7 ± 16.5

Parker et al. 2012 [34]

15

36.9 ± 6.3

15.7 ± 8.9

15

34.3 ± 11.5

17.1 ± 9.5

Adogwa et al. 2010 [36]

15

36.9 ± 6.3

15.7 ± 8.9

15

34.3 ± 11.5

17.1 ± 9.5

Wang et al. 2010 [37]

25

39.7 ± 10.1

12.4 ± 3.6

27

37.9 ± 8.2

11.5 ± 4.2

Shunwu et al. 2009 [38]

32

49.7 ± 11.8

24.7 ± 10.1

30

52 ± 12

27.2 ± 8.4

Wang et al. 2010 [37]

42

41.2 ± 6.6

10.8 ± 3.3

43

38.5 ± 7.4

12.2 ± 3.9

Peng et al. 2009 [39]

29

45.2 ± 3.5

16.2 ± 3.4

29

47.7 ± 3.2

17.5 ± 3.8

Schizas et al. 2008 [41]

18

55 (−)

33 (−)

18

53 (−)

26 (−)

  1. MITLIF minimally invasive transforaminal lumbar interbody fusion, OTLIF Open transforaminal lumbar interbody fusion, Nr. number, Pat. patients, SD standard deviation