Pelvic Up Slip is described as which of the following?

• A. Pelvic Down Slip: One ilium higher than another
• B. Pelvic Inflare: One ASIS closer to midline
• C. Pelvic Outflare: One ASIS farther from midline
• D. Pelvic Up Slip: One ilium higher than another

Answer: (D)

Up slip means one ilium sits higher than the other, tilting the pelvis on that side. This vertical misalignment is why you’d observe the iliac crest and related landmarks elevated on the affected side. The other terms describe horizontal shifts of the front pelvic point (ASIS) toward or away from the midline—these are inflare (closer to midline) and outflare (farther from midline)—not a vertical height difference. In practice, you’d look for a higher crest/PSIS on one side and compare left–right alignment to confirm the up-slip pattern.