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Table 1 Overview of selected studies

From: Significant correlations between postoperative outcomes and various limb and component alignment strategies in medial unicompartmental knee arthroplasty: a systematic review

Author (year)

Number of knees

Study type

Age mean (SD, range)

Gender male (%)

BMI mean (SD, range)

Follow-up time, mean (SD, range)

Evidence level

MINORS Score

Gill (2021) [6]

223 knees (223 patients)

Retrospective cohort

67.6 years (42–88)

52%

29.2 (4.0, 21–43)

2 years (nm)

III

12/16

Gulati (2009) [8]

211 knees (183 patients)

Prospective cohort

66.3 years (± 9.4, 36.1–85.7)

45%

28.1 (4.9, 14.9–44.2)

5.2 years (± 0.6, 4–7.9)

III

17/24

Gulati (2009) [7]

160 knees (160 patients)

Retrospective cohort

65.7 years (± 9.0)

45%

-

5 years (nm)

III

17/24

Inui (2020) [17]

52 knees (52 patients)

Prospective cohort

71.0 years (± 7.9)

29%

25.2 (3.7)

2.9 years (± 1.6)

III

15/16

Iriberri (2014) [18]

101 knees (88 patients)

Retrospective cohort

63.6 years (29–79)

40%

29.7 (20–40)

5.8 years (3–12.5)

III

17/24

Kamenaga (2018) [20]

45 knees (45 patients)

Case series

73.4 years (± 7.7)

29%

25.6 (3.4)

2 years (nm)

IV

14/16

Kamenaga (2018) [21]

50 knees (50 patients)

Retrospective cohort

72.9 years (± 6.7)

34%

25.9 (3.7)

2 years (nm)

III

14/16

Kennedy (2019) [22]

891 knees

Retrospective cohort

66.4 years (± 9.0)a

51%

81.5 (16.9)ab

10 years (5–17)

IV

19/24

Khow (2020) [23]

264 knees (213 patients)

Prospective cohort

61.0 years (± 7.6, 45–81)a

24%

27.2 (4.5)a

10 years (nm)

III

21/24

Kim (2012) [24]

246 knees (194 patients)

Retrospective cohort

61.5 years (± 7.1, 45–81)

2.8%

61.8 (7.4)b

7.4 years (± 1.3)

IV

17/24

Ng (2020) [25]

83 knees (67 patients)

Retrospective cohort

68.4 years (± 6.6, 55–87)

37%

27.2 (3.3, 22–38)

1.75 years (1.1–2.2)

III

18/24

Polat (2020) [27]

52 knees (49 patients)

Case series

60 years (49–80)

18%

34.6 (22–56.9)

4 years (2–6)

IV

11/16

Van der List (2016) [34]

143 knees (143 patients)

Retrospective cohort

65.4 years (± 9.4)

52%

27.2 (4.2)

2 years, (± 2.4; 2–5)

III

20/24

Yamagami (2020) [35]

142 knees (142 patients)

Retrospective cohort

72 years (54–88)

30%

25.1 (18.3–35.1)

2 years (nm)

III

22/24

Zuiderbaan (2016) [36]

104 knees (104 patients)

Case series

65 years (± 9.2, 45–84)

53%

33.2 (30.0–39.1)

2 years, (± 2.3, 2–3.7)

IV

12/16

  1. Abbreviations: BMI body mass index (kilogram/meter2), SD standard deviation
  2. aValues from multiple groups combined into one overall group
  3. bWeight in kilogram