What is anterior inferior iliac spine decompression?
Low AIIS decompression is a safe, effective, and reproducible procedure for addressing subspinal impingement. Creating a flat anterior acetabular surface between the most anteroinferior prominent point of the AIIS and the acetabular rim allows flexion and internal rotation of the hip joint without impingement.
What is anterior inferior iliac spine?
The anterior inferior iliac spine (AIIS) is bony prominence on the anterior border of the ilium forming the superior border of the acetabulum. Attachments include the Iliacus, origin of straight head of the rectus femoris, and also the proximal ileofemoral ligament (Y-ligament or ligament of Bigelow).
What is AIIS impingement?
Harris, MD Contents Services Hip Subspine Impingement. The subspine or anterior inferior iliac spine (AIIS) is a bony process located on the wing of the ilium (upper, large, flat and cup-shaped bone of the hip bone). It lies deep under the soft tissues where the ilium slopes towards the hip joint.
What muscles attach to the inferior iliac spine?
The rectus femoris muscle of the quadriceps group of thigh muscles attaches to the anterior inferior iliac spine, as well as the iliofemoral ligament.
What muscles attach to the anterior inferior iliac spine?
What causes AIIS?
Abnormal morphology of the AIIS has been recently described as a cause of extra-articular FAI. In the adolescent population, hypertrophy of the AIIS may result from nonunion or malunion after an acute avulsion fracture or may be secondary to repetitive traction injury leading to apophysitis.
How do I feel about my ASIS?
Anterior superior iliac spine (ASIS) ➢ Put your hand on the hips ➢ locate the Iliac Crest / hip bone palpate frontward ➢ ASIS is a sharp notch:, above the femur/ thigh bone when seated. ➢ Sit on your hand with palm up to feel the IT against your fingers tips.
How do I stretch my iliac crest?
Exercises and stretches
- Stand up straight.
- Step one foot forward until your knee is at a 90-degree angle.
- Be sure your knee does not extend beyond your toes.
- Shift your weight to your heel.
- Return to your start position.
- Switch sides. Repeat 10 times or as many as is comfortable.
What is function of iliac spine?
The iliac crest is part of the pelvis and therefore functions to stabilize the body by bearing the weight of the spine and upper body.
Can you palpate your AIIS?
Clinical Presentation of AIIS Impingement Tenderness may be elicited during palpation of the AIIS; discomfort and weakness with resisted straight-leg-raising is also a consistent feature. Limitation of internal rotation and adduction with the hip flexed to 90°. This manouevre commonly results in anterior groin pain.
What muscle originates from anterior inferior iliac spine?
Rectus femoris
Rectus femoris originates from around the anterior inferior iliac spine of the pelvis and inserts into the quadriceps tendon; it flexes the hip, as well as being part of the quadriceps, a group of four muscles which extend the knee.
Can you feel the ASIS?