Related Experiment Video
Updated: Nov 8, 2025

12:25
C-arm-Free Simultaneous OLIF51 and Percutaneous Pedicle Screw Fixation in a Single Lateral Position
Published on: September 16, 2022
4.2K
Spino Cranial Angle and Degenerative Cervical Spondylolisthesis
Zheng Wang1, Jia-Xin Xu1, Zhen Liu1
1Department of Spinal Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, PR China.
World Neurosurgery
|April 27, 2021
Summary
A lower spino cranial angle (SCA) and higher T1 slope (T1s) are risk factors for degenerative cervical spondylolisthesis (DCS). An SCA below 79.1 degrees can help diagnose DCS.
Area of Science:
- Neurosurgery
- Radiology
- Orthopedics
Background:
- Degenerative cervical spondylolisthesis (DCS) is a condition affecting the cervical spine.
- Understanding the biomechanical factors associated with DCS is crucial for diagnosis and management.
Purpose of the Study:
- To compare the spino cranial angle (SCA) in patients with DCS and healthy controls.
- To evaluate the diagnostic value of SCA in identifying DCS.
Main Methods:
- Retrospective analysis of cervical radiographs and CT scans from 50 DCS patients and 50 controls.
- Measurement of various sagittal parameters, including SCA and T1 slope (T1s).
- Statistical analysis using correlation, logistic regression, and ROC curve analysis.
Main Results:
- Patients with DCS exhibited a significantly lower SCA (76.84° ± 7.48°) compared to controls (82.47° ± 8.06°).
- The T1 slope (T1s) was significantly higher in the DCS group (27.29° ± 7.84°) than in controls (22.28° ± 6.43°).
- An SCA cutoff of <79.1° demonstrated significant diagnostic value for DCS detection.
Conclusions:
- Lower SCA and higher T1s are identified as risk factors for DCS.
- SCA measurement, particularly a value below 79.1 degrees, is a valuable tool for diagnosing DCS.
Related Concept Videos
Articulations of the Vertebral Column
2.6K
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...
2.6K
Cranial Bones: Superior and Posterior View
4.0K
The superior view of the cranium shows the frontal and paired parietal bones.
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
4.0K
Vertebral Column: Regions and Curvature
5.4K
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...
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...
5.4K
Cranial Bones: Lateral View
3.6K
The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
3.6K

