Related Experiment Video
Updated: Aug 11, 2026

07:28
A Contusive Model of Unilateral Cervical Spinal Cord Injury Using the Infinite Horizon Impactor
Published on: July 24, 2012
Traumatic cervical injuries in ankylosing spondylitis
P H Nakstad1, A Server, R Josefsen
1Department of Neuroradiology 1, Division of Radiology, Ullevål University Hospital, Oslo, Norway. perhjalmar.nakstad@ulleval.no
Acta Radiologica (Stockholm, Sweden : 1987)
|June 12, 2004
Summary
Magnetic resonance (MR) and computed tomography (CT) imaging are crucial for evaluating cervical trauma in ankylosing spondylitis patients. Early detection of epidural hematomas with MR significantly impacts clinical outcomes.
Area of Science:
- Neurosurgery
- Radiology
- Orthopedics
Background:
- Ankylosing spondylitis (AS) poses unique challenges in managing cervical trauma due to fused vertebrae.
- Traumatic spinal injuries in AS patients often present with severe neurological deficits.
Purpose of the Study:
- To highlight the diagnostic utility of MR and CT in cervical trauma for AS patients.
- To establish an optimal imaging protocol for acute cervical trauma in AS.
Main Methods:
- Retrospective analysis of 11 AS patients with cervical trauma.
- Evaluation using plain X-ray, CT with reformatted images, and MR imaging.
Main Results:
- CT superior to X-ray for identifying fractures and dislocations.
- MR essential for detecting medullary changes and epidural hematomas (found in 4 patients).
- Poorer outcomes correlated with cord contusion and epidural hematomas.
Conclusions:
- Plain X-ray has limited value in the acute phase of cervical trauma in AS.
- A protocol including X-ray, CT, and MR is recommended for acute trauma in AS.
- MR is vital for identifying epidural hematomas, which negatively affect clinical outcomes.
Related Concept Videos
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...
Spinal Cord Injury ll: Pathophysiology
Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...
Herniated Intervertebral Disc l: Introduction
Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...

