Table 2

Strength of Recommendations grading used in these Guidelines.

Strength of recommendation

Meaning

A

it must be applied widely and to all patients with this specific need

B

it is important, but can be applied not to all patients with this specific need

C

less important, it can be applied on a voluntary basis

D

very low importance

Negrini et al. Scoliosis 2012 7:3   doi:10.1186/1748-7161-7-3