Figure 6
From: Quantification of fat in the posterior sacroiliac joint region: fat volume is sex and age dependant
Sagittal view of a left coxal bone with a complete sacrum showing the possible effect of age-related counternutation of the sacrum to the posterior sacroiliac joint region (PSIJ). The superior sub-region (red) narrows whilst the inferior sub-region (green) widens.
