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.
Midline
BL-26
Level of the
iliac crests
Spinous process L3
Spinous process L4
Spinous process L5
1.5cun
2
BL-27
1
PSIS BL-28
3
2
3
4
BL-28
PSIS 1
Midline
sacral
foramina BL-29
Fig. 3.79
Iliosacral joints
Sacrum
Ilium
PSIS
Fig. 3.80
Sacrum
Ilium
Iliosacral joint
Fig. 3.81