3 Anatomical Orientation
Iliosacral joint (Figs 3.80, 3.81)
The iliosacral joint can be palpated bilaterally as a shallow
groove between the sacrum, the PSIS (see above) and more
inferiorly located ilial structures. BL-26–BL-29are located
in this area.MidlineBL-26Level of the
iliac crestsSpinous process L3
Spinous process L4
Spinous process L51.5cun2BL-271
PSIS BL-28
32
3
4BL-28PSIS 1Midlinesacral
foramina BL-29Fig. 3.79Iliosacral jointsSacrumIliumPSISFig. 3.80SacrumIliumIliosacral jointFig. 3.81