Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

General Structure of a Vertebra01:30

General Structure of a Vertebra

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 column.
Articulations of the Vertebral Column01:28

Articulations of the Vertebral Column

In addition to being held together by the intervertebral discs, adjacent vertebrae also articulate with each other at synovial joints formed between the superior and inferior articular processes called zygapophysial joints (facet joints). These are plane joints that provide for only limited motions between the vertebrae. The orientation of the articular processes at these joints varies in different regions of the vertebral column and serves to determine the types of motions available in each...
Bone Markings01:26

Bone Markings

Bones have various surface features that help form joints and attach to other soft tissues. Depending on the function, bone markings are categorized into articulating projections, processes for attachment, depressions, and openings.
Articulating Projections
Articulating projections are found where two bones meet to form a joint. These structures are usually found at the ends of bones. The largest articulation is a rounded projection called the head, supported by a narrow neck at the ends of...
Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the neck...
Gross Anatomy of Bone01:17

Gross Anatomy of Bone

The two main features of a long bone are the diaphysis and the epiphysis.
The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The walls of the diaphysis are composed of dense and hard compact bone made of numerous osteons — the functional unit of the compact bone. The hollow region in the diaphysis is called the medullary cavity, which harbors the bone marrow. In infants and children, this marrow cavity is filled with red marrow, whereas in adults, it...
Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The effectiveness of chemonucleolysis with condoliase for lumbar disc herniation in elderly patients over 70 years old.

Neurosurgical review·2026
Same author

Tri-Culture System Reveals an Activation Cascade From Microglia Through Astrocytes to Neurons During Neuroinflammation.

Journal of neurochemistry·2026
Same author

Combined supramalleolar osteotomy and ankle arthrodesis for end-stage ankle arthritis with large varus deformity.

Foot and ankle surgery : official journal of the European Society of Foot and Ankle Surgeons·2025
Same author

Association between lumbosacral transitional vertebrae and adjacent segment disease after L4-5 lumbar interbody fusion.

Clinical neurology and neurosurgery·2025
Same author

Neuronal Damage Induced by Gradual Oxidative Stress in iPSC-Derived Neurons: Implications for Ferroptosis Involvement and ALS Drug Evaluation.

Journal of neurochemistry·2025
Same author

Measurement of Intraoperative Insertional Torque: Usefulness for Prediction of the Deviation of Pedicle Screw Insertion in Lumbar Degenerative Diseases.

International journal of spine surgery·2025

Related Experiment Video

Updated: Jul 19, 2026

Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum (TOLF) Using Ultrasonic and Conventional Osteotomes
07:12

Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum (TOLF) Using Ultrasonic and Conventional Osteotomes

Published on: April 21, 2023

Osteoma arising from the lumbar articular process.

Hayato Kobayashi1, Jun Hara, Yoshihiro Kitahama

  • 1Department of Orthopaedic Surgery, Heisei Memorial Hospital, Fujieda, Shizuoka, Japan. hayato-k@f3.dion.ne.jp

Neurologia Medico-Chirurgica
|October 26, 2006
PubMed
Summary

This study reports an extremely rare case of spinal osteoma in a 57-year-old man. Surgical removal of the osteoma from the L-5 inferior articular process successfully relieved his lumbo-crural sciatica.

More Related Videos

Transforaminal Full-Endoscopic Lumbar Foraminotomy Under Local Anesthesia for L5/S1 Adjacent Segment Foraminal Stenosis
07:44

Transforaminal Full-Endoscopic Lumbar Foraminotomy Under Local Anesthesia for L5/S1 Adjacent Segment Foraminal Stenosis

Published on: October 17, 2025

Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
08:07

Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma

Published on: April 12, 2019

Related Experiment Videos

Last Updated: Jul 19, 2026

Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum (TOLF) Using Ultrasonic and Conventional Osteotomes
07:12

Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum (TOLF) Using Ultrasonic and Conventional Osteotomes

Published on: April 21, 2023

Transforaminal Full-Endoscopic Lumbar Foraminotomy Under Local Anesthesia for L5/S1 Adjacent Segment Foraminal Stenosis
07:44

Transforaminal Full-Endoscopic Lumbar Foraminotomy Under Local Anesthesia for L5/S1 Adjacent Segment Foraminal Stenosis

Published on: October 17, 2025

Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
08:07

Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma

Published on: April 12, 2019

Area of Science:

  • Orthopedic Surgery
  • Neurosurgery
  • Spinal Oncology

Background:

  • Spinal osteomas are rare benign bone tumors.
  • Osteomas typically affect the craniofacial skeleton, with spinal involvement being exceptionally uncommon.
  • This case highlights an unusual origin of spinal osteoma from the articular process.

Observation:

  • A 57-year-old male presented with lumbo-crural sciatica attributed to a rare osteoma.
  • Imaging (CT and MRI) revealed the osteoma compressing the L-5 nerve root at the lateral recess.
  • The tumor originated from the left L-5 inferior articular process, a highly unusual location.

Findings:

  • Surgical intervention included decompression facetectomy, lesion excision, and L-5-S-1 transforaminal lumbar interbody fusion.
  • The patient experienced complete symptom relief post-surgery.
  • Histological examination confirmed the benign nature of the osteoma.

Implications:

  • This case expands the known anatomical locations for spinal osteomas.
  • It underscores the importance of considering osteomas in the differential diagnosis of benign lesions affecting the articular process.
  • Highlights successful surgical management for osteomas causing nerve root compression and sciatica.