Anterior inferior iliac spine
 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (October 2021) |
| Anterior inferior iliac spine | |
|---|---|
hip-joint from the front (anterior inferior iliac spine visible at upper left) | |
| Details | |
| Identifiers | |
| Latin | spina iliaca anterior inferior |
| TA98 | A02.5.01.112 |
| TA2 | 1328 |
| FMA | 63614 |
| Anatomical terms of bone] | |
The anterior inferior iliac spine (AIIS) is a bony eminence on the anterior border of the hip bone, or, more precisely, the wing of the ilium.
Structure
The AIIS is a bony eminence on the anterior border of the ilium. It is below the anterior superior iliac spine.
Development
The AIIS is formed from a separate ossification centre to the rest of the ilium.[1]
Function
The upper portion of the spine gives origin to the straight head of the
hip joint and borders the rim of the acetabulum.[1]
Anteromedially and inferiorly to the AIIS is the
inferior gluteal line, might run from the AIIS to the greater sciatic notch which delineates the inferior extent of the origin of gluteus minimus muscle.[1]
Clinical significance
Rectus femoris muscle may avulse from the AIIS with significant mechanical stress.[2] This may be surgically reattached.[2]
Additional images
-
Lefthip-joint, opened by removing the floor of the acetabulum from within the pelvis -
Hip joint. Lateral view. Anterior inferior iliac spine visible to the left.
Notes
- ^ ISBN 0-07-137472-8.
- ^ PMID 32885017.
