Ischial spine

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Ischial spine
Capsule of hip-joint (distended). Posterior aspect. (Spine of ischium labeled at upper left.)
Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis. (Spine of ischium labeled at center left.)
Latin Spina ischiadica
Spina ischiaca
Spina ischialis
TA A02.5.01.205
FMA 17028
Anatomical terms of bone

From the posterior border of the body of the Ischium there extends backward a thin and pointed triangular eminence, the ischial spine, more or less elongated in different subjects.


external surface gives attachment to the Gemellus superior
internal surface gives attachment to the Coccygeus, Levator ani, and the pelvic fascia
pointed extremity the sacrospinous ligament is attached.

Clinical Significance[edit]

It can serve as a landmark in pudendal anesthesia.[1]

Additional images[edit]


This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links[edit]