What is the normative ROM for thoracolumbar rotation in degrees?

• A. 0-30 degrees
• B. 0-45 degrees
• C. 0-60 degrees
• D. 0-20 degrees

Answer: (B)

Rotational movement in the thoracolumbar region is a combined motion from the thoracic and upper lumbar joints, with most of the rotation coming from the thoracic spine. The rib cage and the way thoracic facet joints orient limit rotation, so the end-range rotation is typically around 40 to 45 degrees. The lumbar portion contributes only a small amount because its facets are aligned to restrict rotation, making large rotational ROM in this region unlikely. That’s why a normative end-range of about 0 to 45 degrees is expected for thoracolumbar rotation.

Choosing a smaller range like 0-30 degrees would understate typical mobility, while a larger range like 0-60 degrees would exceed what is normally observed clinically. An end-range of 0-20 degrees is also too limited for most individuals.