Table 4 Comparison of arthroscopic scores and MRI findings between groups

Arthroscopic scores

 Arthroscopic meniscal healing score (point) [range]

8.3 ± 1.2 [8, 9]

7.1 ± 1.1 [7, 8]

 < 0.001*

  Width of bridging tissues (point)

4.0 ± 0.0

3.9 ± 0.4

0.419

  Stability (point)

3.3 ± 0.9

2.3 ± 0.6

 < 0.001*

  Synovial coverage (point)

1.0 ± 0.7

0.9 ± 0.5

0.252

MRI findings

 Pre-operative MME (mm)

3.0 ± 0.7 [2.5–3.6]

3.2 ± 0.9 [2.6–3.6]

0.598

 3 M postoperative MME (mm) [range]

3.2 ± 0.8 [2.6–3.6]

3.5 ± 0.7 [3.1–4.0]

0.651

 1 Y postoperative MME (mm) [range]

3.4 ± 1.0 [2.6–4.0]

4.2 ± 1.3 [3.7–4.9]

0.009*

 ΔMME preoperative to 3 M (mm) [range]

0.2 ± 0.5 [0–0.5]

0.3 ± 0.5 [0.2–0.7]

0.213

 ΔMME preoperative to 1 Y (mm) [range]

0.4 ± 0.6 [0.3–0.7]

1.0 ± 1.0 [0.5–1.6]

0.019*

 Suspension bridge sign (positive/negative)

14/1

57/29

0.036*

Bone tunnel (anatomical/ non-anatomical)

14/1

76/10

1.000