- April 28, 2026The lumbar interspinales are paired small muscles flanking the interspinous ligament between adjacent spinous processes. They contribute minimally to extension…
- April 28, 2026The multifidus is the most important lumbar spinal stabiliser, providing segmental control through its short multi-segment architecture. Unlike the erector…
- April 28, 2026The quadratus lumborum is the lateral lumbar stabiliser connecting the iliac crest to the 12th rib and lumbar transverse processes.…
- April 28, 2026The iliocostalis is the most lateral column of the erector spinae, running from the iliac crest to the rib angles…
- April 28, 2026The longissimus is the intermediate and longest column of the erector spinae, running from the common tendon at the pelvis…
- April 28, 2026The spinalis is the most medial and smallest column of the erector spinae, connecting spinous processes over short distances. It…
- April 28, 2026The lumbar intertransversarii connect adjacent lumbar transverse processes and, like the rotatores, are thought to serve a primarily proprioceptive rather…
- April 28, 2026The L5-S1 disc is the most highly loaded lumbar disc, accepting the greatest mechanical stress from the combination of lumbar…
- April 28, 2026The lumbosacral junction is the transition zone between the mobile lumbar spine and the rigid sacrum, making it the highest-stress…
- April 28, 2026Lumbar facet joints face sagittally, enabling the lumbar spine's primary flexion-extension motion while resisting the rotation that would injure the…