Herniated nucleus pulposus is a slightly more anatomically complex term for the condition most people know as a herniated disc. It simply describes the protrusion of inner disc material, called the nucleus pulposus, through a tear or weak spot in a spinal disc.

Aug 7, 2023 · Nucleus pulposus herniation is the most common cause of sciatic pain and one of the most common indications for spine surgery worldwide. This condition presents as a displacement of the nucleus pulposus beyond the intervertebral disc space. The disc anatomy consists of two main structures, the nucleus pulposus (NP) and the annulus fibrosus (AF).

Jun 10, 2019 · Herniated nucleus pulposus or HNP is a medical term used to define a spinal condition commonly known as slipped disc or herniated disc. Herniated nucleus pulposus does not give rise to symptoms by itself. Symptoms are felt, when the leakage of nucleus causes compression of nerves, which in turn leads to other serious issues.

Oct 24, 2024 · A herniated nucleus pulposus (HNP) refers to the rupture of the annulus fibrosus, the outer layer of an intervertebral disc, allowing the gel-like center, known as the nucleus pulposus, to protrude outside its normal boundary.

Paracentral herniated nucleus pulposus (HNP) describes a disc near the center of the spine that has torn open and has allowed the nucleus of the disc to extend into the spinal column. This condition is generally caused by the natural aging process of the spine, but can also be related to sudden injury or trauma.

Mar 5, 2025 · Lumbar Disc Herniation is a very common cause of low back pain and unilateral leg pain, known as radiculopathy. In rare cases a large disc herniation can lead to Cauda Equina Syndrome which requires emergent diagnosis and treatment. Diagnosis is made clinically and confirmed with an MRI studies of the lumbar spine.

Jun 30, 2023 · The symptoms due to herniated nucleus pulposus (HNP) can ultimately be attributed to the significant inflammatory response it generates inside the spinal canal. Disk injury results in an...

Aug 27, 2024 · Herniated nucleus pulposus is a condition in which part or all of the soft, gelatinous central portion of an intervertebral disk is forced through a weakened part of the disk, resulting in back pain and nerve root irritation.

A herniated nucleus pulposus happens when a tear occurs in the annulus fibrosus that spans from the outer layer of the disc all the way to the nucleus, allowing inner material to be pushed out into the spinal column.

Dec 2, 2019 · a condition in which the central portion of the intervertebral disc herniates beyond the firm outer ring can lead to spinal inflammation +/- nerve root compression also known as a slipped disc, herniated disc, or herniated nucleus pulposus (HNP)