Abnormal femoral torsion

What it means

Femoral torsion, also known as femoral rotation or femoral version, refers to the twist between the proximal and distal parts of the femur on the transverse plane. Femoral anteversion averages between 30-40 degrees at birth, and between 8-14 degrees in adults. This term applies if the amount of femoral torsion deviates from this range.

Rare diseases that can present with this1

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category