What Is the Sacrum?
Sacrum is a triangular bone at the base of the spine that connects the lumbar spine to the pelvis. It forms the back wall of the pelvic region and joins the hip bones at the sacroiliac joints. The sacrum helps transfer forces between the spine and pelvis during standing, walking, and movement.
Quick Facts About Sacrum
Category
Pelvic and spinal bone
Used for
Spine and pelvis assessment
Common confusion
Often confused with the coccyx
Also called
Sacral Bone, Sakrum
Often discussed with
Back Pain Treatment, Chiropractic Adjustment
Key Takeaways About Sacrum
- The sacrum is triangular and sits below the lumbar spine.
- Sacroiliac joints connect the sacrum with the pelvis.
- The sacrum is not the same structure as the coccyx.
How Sacrum Works
Sacrum functions as a firm connection between the lower spine and the pelvic bones. Its broad upper surface meets the lumbar spine, while its sides connect with the hip bones through the sacroiliac joints. These joints allow small movements that support changes in position and load.
Related glossary terms: Sacroiliac Joint, Lumbar Spine, Pelvic Floor.
During walking or standing, the sacrum helps distribute force through the pelvis. Clinicians assess its position and motion alongside the lumbar spine, hips, and surrounding muscles. A sacral finding may relate to pelvic alignment, restricted joint motion, or soft tissue tension, so the structure is evaluated as part of the broader back and pelvic region.
From the Arrowhead Clinic - Lithia Springs team
When we assess the sacrum, we consider its relationship with the lumbar spine, pelvis, hips, and sacroiliac joints. We combine posture findings, movement checks, and the person’s reported symptoms to guide care within Back Pain Treatment. Our team treats the sacrum as part of a connected region, not as an isolated structure.
Sacrum in Practice: A Real-World Example
A person with low back discomfort may report symptoms during walking, bending, or prolonged standing. During Back Pain Treatment, the clinician may assess sacral movement along with the lumbar spine, pelvis, and hip muscles to identify contributing movement patterns.
Related Services
Related Terms
Sacroiliac Joint
Sacroiliac Joint is the connection between the sacrum at the base of the spine and the…
Lumbar Spine
The lumbar spine is the lower section of the vertebral column, located between the thoracic spine…
Pelvic Floor
Pelvic floor is a group of muscles and connective tissues that supports pelvic organs and helps…
Anterior Pelvic Tilt
Anterior Pelvic Tilt is a forward rotation of the pelvis that increases the inward curve of…
Arrowhead Clinic - Lithia Springs
Have Questions About Sacrum?
Contact Arrowhead Clinic - Lithia Springs for practical guidance on Sacrum and related chiropractor work in Lithia Springs.