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[edit] Discussion

• Anterior superior iliac spine (ASIS) avulsion fractures typically occurs during athletic competition.
• ASIS is the site of attachment for sartorius and tensor fascia lata.
• Of the common types of pelvic fractures (pelvic ring fractures, acetabular fractures), avulsion fractures are the most benign.
  • These can usually be treated on an outpatient basis with crutches, analgesics, and modified activity.
  • Spontaneous recovery usually occurs within 4 to 6 weeks.
  • Occasionally, surgical intervention is required to remove painful fragments or to regain anatomic fixation.

[edit] Pelvic avulsion fractures and attaching muscles

• Anterior superior iliac spine: Sartorius and tensor fascia lata
• Anterior inferior iliac spine: Rectus femoris
• Iliac crest: Abdominal musculature
• Ischial tuberosity: Hamstrings
• Greater trochanter: Hip rotator muscles
• Lesser trochanter: Iliopsoas

[edit] Imaging Findings

[edit] Images

Patient #1

[edit] See Also

[edit] External Links

[edit] References

• Univerity of Hawaii