The 5-Minute Rule for Causes of Pain in the Lumbar Spine

The posterior longitudinal ligament (PLL) pays for only weak midline support, particularly at L4-5 and L5-S1, as it is a narrow structure attached to the annulus. The anterior and middle fibers of the annulus are most various anteriorly and laterally however deficient posteriorly, where the majority of the fibers are connected to the cartilage plate.

Spine Structure & Function: Parts & Segments, Spine Problems, Spine Health

The anterior column (black dotted line) includes the anterior spine ligament, the anterior annulus fibrosus (AF), the intervertebral disc, and the anterior two thirds of the vertebral bodies. The middle column (red dotted line) consists of the posterior aspect of the vertebral bodies, the posterior annulus fibrosus, and the posterior longitudinal ligament (PLL).

ALL = anterior longitudinal ligament; ISL = interspinous ligament; LF = ligamentum flavum; NP = nucleus pulposus; SSL = supraspinous ligament. The annular fibers are firmly attached to the vertebral bodies and are set up in lamellae. This annular plan permits limiting vertebral motions, enhanced by investing ligaments. I Found This Interesting covers the forward surfaces of back vertebral bodies and discs.

An Unbiased View of The Most Common Causes Of Lumbar Spine Pain - OrthoNeuro

The ALL preserves the stability of the joints and limits extension. The PLL is located within the vertebral canal over the posterior surface area of the vertebral bodies and discs. It works to restrict flexion of the vertebral column, other than at the lower L-spine, where it is narrow and weak. The supraspinous ligament joins the ideas of the spinous procedures of adjacent vertebrae from L1-L3.

Lumbar Spine Anatomy - eOrthopod.com

In some cases described together as the interspinous/supraspinous ligament complex, they weakly resist back separation and flexion. The ligamentum flavum (LF) bridges the interlaminar interval, connecting to the interspinous ligament medially and the element pill laterally, forming the posterior wall of the vertebral canal. It has a broad attachment to the undersurface of the remarkable lamina and inserts onto the leading edge of the inferior lamina.

It preserves consistent disc stress. The intertransverse ligament joins the transverse procedures of adjacent vertebrae and resists lateral bending of the trunk. The iliolumbar ligament develops from the pointer of the L5 transverse process and links to the posterior part of the inner lip of the iliac crest. It assists the lateral lumbosacral ligament and the ligaments discussed above stabilize the lumbosacral joint (see the following images).