Fig 5. Association between pre-surgical MFI and post-surgical functional improvement in clinical disability.

a) Scatterplot depicting relation between MFI and Nurick recovery rate, Spearman’s ρ is reported; b) Mean group differences in MFI across mJOA recovery rate dichotomized as <50% and ≥50%. Mean (SE) are reported. * denotes significance at p≤0.05. MFI = muscle fat infiltration, LC = longus colli and longus capitis, mJOA = modified Japanese Orthopedic Association.