Table 2 Correlations of dACC deactivation strength with clinical outcomes in patients of baseline, 3 years follow-up and their improvements

AOFAS^a

− 0.60*

− 0.87 to − 0.08

0.03

0.04

− 0.52 to 0.58

0.89

0.44 to 0.94

NRS^b

0.33

− 0.29 to 0.75

0.28

− 0.04

− 0.59 to 0.54

0.90

− 0.76 to 0.28

Tegner^b

− 0.14

− 0.65 to 0.46

0.65

− 0.59*

− 0.86 to − 0.03

0.04

− 0.89 to − 0.15

Return to work (weeks)^a

–

0.55^{^}

0.002 to 0.85

0.05

–

Duration^a

− 0.10

− 0.61 to 0.48

0.76

–

–