If you have an anterior torsion, what do you expect for a sphinx and spring test?

If you have an anterior torsion, what do you expect for a sphinx and spring test?

• A. Negative spring (there will be a spring)
• B. Positive sphinx test (dysfunction will improve)
• C. Positive spring (no spring)
• D. Sphinx test will worsen the dysfunction

Answer: (A)

When the sacrum is in an anterior torsion, the base is rotated forward. The spring test checks how the sacral base responds to an anterior-directed pressure. In this pattern, there isn’t a tight posterior barrier resisting that motion; you’ll feel the sacrum give and rebound—a springing sensation. That’s described as a negative spring test, i.e., there will be a spring. The sphinx test outcome isn’t as reliably tied to this specific torsion pattern, so it isn’t as determinative here. Therefore, the result that best fits an anterior torsion is a springy response on the spring test (negative spring).

When the sacrum is in an anterior torsion, the base is rotated forward. The spring test checks how the sacral base responds to an anterior-directed pressure. In this pattern, there isn’t a tight posterior barrier resisting that motion; you’ll feel the sacrum give and rebound—a springing sensation. That’s described as a negative spring test, i.e., there will be a spring. The sphinx test outcome isn’t as reliably tied to this specific torsion pattern, so it isn’t as determinative here. Therefore, the result that best fits an anterior torsion is a springy response on the spring test (negative spring).