Which type of sacral torsion occurs when L5 is in a neutral position?

When L5 is in a neutral position, the correct identification of sacral torsion is forward sacral torsion. This condition arises when the sacrum rotates around an oblique axis and is influenced by the position of the lumbar spine, particularly in a neutral stance.

In forward sacral torsion, the sacrum will typically rotate anteriorly on the axis, which corresponds to the sacral side of the axis being named after the side of the lower shoulder that is posterior (i.e., the side of the torsion is opposite to the side of rotation). This mechanism aligns with the biomechanical principles of how lumbar vertebrae and sacral structures interact. Thus, when L5 is positioned neutrally, you are more likely to see a forward sacral torsion.

Overall, recognizing the relationship of lumbar mechanics to sacral movement is essential in understanding this aspect of osteopathic manipulative treatment and sacral dysfunctions.