Pelvic Incidence Animation

Video Description

This video animation demonstrates a low, medium, and high pelvic incidence.

It shows the mathematical relationship between pelvic incidence, sacral slope, and pelvic tilt.

Pelvic incidence = pelvic tilt + sacral slope

Pelvic incidence is important because studies have shown a correlation with spondylolithesis.

Hanson et al performed a retrospective radiographic analysis of 40 patients and found pelvic incidence was significantly higher in patients with low- and high-grade isthmic spondylolisthesis as compared with controls and had significant correlation with the Meyerding-Newman grades (P = 0.03).Hanson DS, Bridwell KH, Rhee JM, Lenke LG. Correlation of pelvic incidence with low- and high-grade isthmic spondylolisthesis. Spine (Phila Pa 1976). 2002 Sep 15;27(18):2026-9. PubMed PMID: 12634563. Level of Evidence: Undefined.
PMID: 12634563 (Link to Abstract)