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Related Concept Videos

Vertebral Column: Regions and Curvature01:16

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The vertebral column or spine is a flexible column that supports the head, neck, and body and  allows for their movements. It also protects the spinal cord.
Regions of the Vertebral Column
In an adult, the spine is subdivided into five regions: the cervical, the thoracic, the lumbar, the sacral, and the coccygeal region. The spine initially develops as a series of 33 vertebrae; after 20 years of age, the nine bones in the sacral region, five sacral, and four coccygeal bones fuse to form...
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A typical vertebra, with the exception of the sacrum and coccyx, consists of a body, a vertebral arch, and seven different projections termed processes. The anterior portion of the vertebrae, the body, supports about half the body’s weight. The vertebral bodies progressively increase in size and thickness from the cervical region to the lumbar region of the vertebral column. The intervertebral discs present between the bodies of adjacent vertebrae firmly unites them, forming a continuous...
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Related Experiment Video

Updated: Jul 25, 2025

Transtubular Endoscopic Posterolateral Decompression for L5-S1 Lumbar Lateral Disc Herniation
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[Correlation between spinous process deviation and lumbar disc herniation in young patients].

Zhi-Jie Chen1, Chun-Mei Chen2, Zhong-Sheng Bi1

  • 1Department of Neurosurgery, Guangdong 999 Brain Hospital, Medical College of Jinan University, Guangzhou 510000, Guangdong, China.

Zhongguo Gu Shang = China Journal of Orthopaedics and Traumatology
|June 27, 2023
PubMed
Summary

Spinous process deviation is a risk factor for lumbar disc herniation in young patients. Opposite deviation directions of adjacent lumbar spinous processes increase herniation incidence in this group.

Keywords:
Lumbar disc herniationSpinous process deviationSusceptibility factorsYoung patients

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Area of Science:

  • Orthopedics
  • Radiology
  • Biomechanical Engineering

Context:

  • Lumbar disc herniation (LDH) is a common condition affecting individuals across age groups.
  • Understanding anatomical variations contributing to LDH is crucial for effective prevention and treatment strategies.
  • Spinous process (SP) morphology and alignment have been implicated in spinal biomechanics.

Purpose:

  • To investigate the association between spinous process deviation and the occurrence of lumbar disc herniation in young adults.
  • To compare SP deviation angles in young patients with LDH, middle-aged patients with LDH, and young controls without degenerative spinal disease.
  • To identify potential risk factors related to SP deviation in young LDH patients.

Summary:

  • A study involving 90 patients (30 young LDH, 30 middle-aged LDH, 30 young non-degenerative controls) analyzed spinous process deviation angles using CT scans.
  • Results indicated similar SP deviation angles between young and middle-aged LDH groups, but significantly greater deviation in young LDH patients compared to young controls.
  • A notable finding was the higher prevalence of opposite deviation directions between adjacent lumbar spinous processes in young LDH patients (19/30) versus middle-aged LDH patients (7/30).

Impact:

  • Spinous process deviation is identified as a significant risk factor for lumbar disc herniation in young patients.
  • Opposing deviation directions of adjacent lumbar spinous processes are associated with an increased incidence of LDH in younger individuals.
  • Findings suggest that individuals with specific SP anatomical variations may benefit from targeted exercises to enhance spinal stability and prevent LDH.