Rolandic Anatomy
Posterior Superior Iliac Spine
AI-powered interactive skeletal anatomy for medical and surgical education
The prominent bony protrusion at the posterior end of the iliac crest, often marked by the 'dimples of Venus.' It is a key landmark for spinal anesthesia, bone marrow harvesting, and identifying the level of the S2 vertebra.
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Educational content only. Not medical advice. For clinical decisions, consult authoritative sources and qualified clinicians.