Table 1 Basic characteristics and quality assessment of the included studies
ID | Study design | Implant used | Number of cases | Sex (M/F) | Age | BMI | Mean follow-up | Effective outcome indicators | Quality rating | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SONK | MKOA | Total | SONK | MKOA | SONK | MKOA | SONK | MKOA | SONK | MKOA | |||||
Yang [14] | Retrospective cohort study | IV | 15 (15) | 65 (72) | 80 (87) | 0/15 | 25/47 | 66.8 ± 6.1 | 64.0 ± 7.6 | 26.4 ± 4.8 | 26.0 ± 3.7 | 2.7 ± 1.4 | 3.0 ± 1.3 | ④⑤⑥⑦ | 7 |
Zhao [15] | Matched case–control study | IV | 20 (20) | 20 (20) | 40 (40) | 4/16 | 4/16 | 71.9 ± 8.2 | 72.5 ± 8 2 | NA | 2.0 ± 1.5(1–2.7) | ①②③④⑤⑥ | 8 | ||
Ji [16] | Retrospective cohort study | IV | 7 | 239 | 245 (246) | 37/208 | 64.3 (50–76) | NA | 2.8 (1–8) | ③④⑤⑥⑦ | 7 | ||||
Zhang [17] | Matched case–control study | III | 29 | 29 | 58 | 12/17 | 12/17 | 63.83 ± 9.23 | 65.69 ± 11.07 | 25.44 ± 3.48 | 24.21 ± 3.71 | 3.7 ± 1.2 | 3.7 ± 1.2 | ②③④⑤⑥⑦ | 8 |
Langdown [21] | Matched case–control study | III | 27 (29) | 26 (28) | 53 (57) | 23/29 | 22/28 | 73 (43–88) | 71 (46–85) | NA | 5.2(1–13) | 4.8(1–13) | ①③④⑤⑥ | 7 | |
Zermatten [18] | Retrospective cohort study | II | 10 (10) | 32 (38) | 42 (48) | 11/37 | 69.2 (57–82) | NA | NA (1–11) | ④⑤⑥⑦ | 7 | ||||
Heller [22] | Retrospective cohort study | III | 9 | 33 | 42 (42) | 11/31 | 63 (45–80) | NA | 2.7 (2–5) | ③④⑤⑦ | 7 | ||||
Ma [20] | Retrospective cohort study | III | 23 | 235 | 258 | 7/16 | 74/161 | 71.6 ± 8.53 | 71.0 ± 8.14 | 25.02 ± 2.03 | 25.23 ± 1.85 | 5(2–9) | ①④⑤⑥⑦ | 7 | |
Xue [19] | Retrospective cohort study | III | 41 | 667 | 708 | 295/339 | 67.8 ± 10.2 | 30.5 ± 1.4 | 5.3 (3.0–6.5) | 5.3 (3.0–6.6) | NA | 7 | |||