Fig. 2.

Altered microstructural integrity along compressed L5 nerve roots. A) Reduced FA in affected versus unaffected nerve roots. At the proximal end of the compressed nerve root there was an increased in B) MD C) AD and D) RD. Affected nerves = left or right L5 based on radiological confirmation; unaffected nerves = left or right L4 or S1 based on radiological confirmation. Data are expressed as mean ± SEM; 2-way RM ANOVA with Holm-Sidak multiple comparison post-hoc tests; *- p < 0.05; **- p < 0.01; ***- p < 0.001; N = 20.