Each hemi-pelvis starts out as three separate bones: ilium, ischium, and pubis.

A couple of hamstring tears and a stress fracture on the tuberosity of the ischium.

The ischium is also frequently rather more elongated.

Squiggles were also evident on the ischium, near the point at which the body is supported when sitting.

Throughout childhood, each pelvic half is composed of three separate elements, the ilium, the ischium, and the pubis.