Here’s a question that might make you pause: When was the last time you questioned whether the pelvic measurements we’ve been using since your grandmother’s era are actually… accurate? It’s 2025. You’re using AI to read mammograms and robots to assist surgeries, but when it comes to pelvimetry, you’re still relying on standards set in the 1950s. Recent research from France has dropped a bombshell analyzing 551 CT pelvimetries—revealing that modern women’s pelvic dimensions don’t match those decades-old textbook numbers we’ve been faithfully following. The median obstetric transverse diameter found was 12.41 cm, significantly different from traditional reference values. Even more surprising? Despite technological advances in CT and MRI pelvimetry, studies show accuracy rates for predicting labor outcomes hover between just 50-74%. Buckle up, because we’re about to dive into one of obstetrics’ best-kept secrets that could change how you approach delivery planning. And for expecting mothers reading this: understanding these limitations means being informed about why your birth plan might need flexibility beyond what measurements alone can predict. Read more