Comparison of anatomical markers and degenerative changes between SIJS and control groups for both genders.*SIJS = sacroiliac joint syndrome. dg = degrees. Values are means of individual subgroups. P-values summarized by asterisks: *** = p < ,001; ** = p ≤ 0,01; * = p ≤ 0,05; no asterisk annotation = insignificant p-value. Dorsal sacroiliac depth: distance of posterior aspect of ilium to S1, mm. Interiliacal width: posterior aspect of ilium interilial distance at S1 level, mm. Pelvic width: maximal transverse diameter, mm. Pelvic depth: sagittal diameter at midline, mm. Sacral width: ventral aspect sacral width at S1 level, mm. True SIJ depth, S1 level: a.-p. diameter of articulating joint portion, mm. Ligamentous SIJ depth, S1 level: a.-p. diameter of ligamentous joint portion, mm. SIJ depth at S2 and S3 level: a.-p. diameter of true joint in mm. True SIJ angulation, S1 level: angulation of true joint portion towards sagittal plane, degrees. Lig

Comparison of anatomical markers and degenerative changes between SIJS and control groups for both genders.*SIJS = sacroiliac joint syndrome. dg = degrees. Values are means of individual subgroups. P-values summarized by asterisks: *** = p < ,001; ** = p ≤ 0,01; * = p ≤ 0,05; no asterisk annotation = insignificant p-value. Dorsal sacroiliac depth: distance of posterior aspect of ilium to S1, mm. Interiliacal width: posterior aspect of ilium interilial distance at S1 level, mm. Pelvic width: maximal transverse diameter, mm. Pelvic depth: sagittal diameter at midline, mm. Sacral width: ventral aspect sacral width at S1 level, mm. True SIJ depth, S1 level: a.-p. diameter of articulating joint portion, mm. Ligamentous SIJ depth, S1 level: a.-p. diameter of ligamentous joint portion, mm. SIJ depth at S2 and S3 level: a.-p. diameter of true joint in mm. True SIJ angulation, S1 level: angulation of true joint portion towards sagittal plane, degrees. Ligamentous SIJ angulation, S1 level: a