Anterior inferior iliac spine

Anterior Inferior Iliac Spine

The Anterior Inferior Iliac Spine (pronounced: an-TEER-ee-or in-FEER-ee-or IL-ee-ak SPINE), often abbreviated as AIIS, is a bony projection located on the ilium of the pelvic bone.

Etymology

The term "Anterior Inferior Iliac Spine" is derived from the Latin words 'anterior' meaning 'front', 'inferior' meaning 'lower', 'iliac' referring to the 'ilium', and 'spine' referring to a 'sharp projection'.

Anatomy

The AIIS is an important anatomical landmark as it serves as the point of attachment for the rectus femoris muscle and the iliofemoral ligament. It is located on the anterior border of the hip bone, just above the acetabulum.

Clinical Significance

Injuries or abnormalities of the AIIS can lead to conditions such as Iliac Apophysitis, a common cause of hip pain in adolescents. It can also be involved in hip impingement syndromes.

Related Terms

• Ilium
• Pelvic bone
• Rectus femoris
• Iliofemoral ligament
• Acetabulum
• Iliac Apophysitis
• Hip impingement

External links

• Medical encyclopedia article on Anterior inferior iliac spine
• Wikipedia's article - Anterior inferior iliac spine

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