scholarly journals Is Halcyon feasible for single thoracic or lumbar vertebral segment SBRT?

2021 ◽  
Author(s):  
Fang Li ◽  
Jeonghoon Park ◽  
Ron Lalonde ◽  
Si Young Jang ◽  
Maria Stefania diMayorca ◽  
...  
Keyword(s):  
Vertebral Segment

Novel anterior decompression with vertebral segment anterior sliding: neglected impact on the esophagus

2018 ◽  
Vol 18 (10) ◽  
pp. 1965-1966
Author(s):  
Hai-Qiang Wang ◽  
Jun Zhang ◽  
Zhi-Heng Liu
Keyword(s):  
Anterior Decompression ◽  
Vertebral Segment

Lightning Injury in an Outdoor Swine Herd

2003 ◽  
Vol 15 (3) ◽  
pp. 289-291 ◽  
Author(s):  
William G. Van Alstine ◽  
William R. Widmer
Keyword(s):  
Lightning Strike ◽  
Pelvic Cavity ◽  
Lumbosacral Junction ◽  
Multiple Fractures ◽  
Swine Herd ◽  
Spinal Nerves ◽  
Lumbar Vertebral Body ◽  
Lightning Injury ◽  
Hind Limb Paralysis ◽  
Vertebral Segment

Three pigs, weighing 63 kg–70 kg each, from a group of 8 pigs in an outdoor pen that was struck by lightning were necropsied. All 3 pigs presented with hind limb paralysis. The only lesions identified were multiple fractures of the last (seventh) lumbar vertebral body and first sacral vertebral segment, with dorsal displacement of the sacrum and transection of the distal spinal cord and spinal nerves. Hemorrhages extended from the fracture sites into muscles immediately surrounding the lumbosacral junction and retroperitoneally into the pelvic cavity. These hemorrhages were not clearly visible until the pelvic region was dissected. Lesions commonly found in human lightning-strike victims were not present in these pigs. Because vertebral fractures may be the only lesions and may be grossly subtle in heavily muscled pigs, careful pelvic and vertebral dissection is recommended in cases of suspected lightning strike and electrocution.

scholarly journals RSA in Spine: A Review

2017 ◽  
Vol 7 (8) ◽  
pp. 811-820 ◽  
Author(s):  
Ali Humadi ◽  
Sulaf Dawood ◽  
Klas Halldin ◽  
Brian Freeman
Keyword(s):  
Systematic Review ◽  
Lumbar Spine ◽  
Range Of Motion ◽  
Rigid Bodies ◽  
Review Of Literature ◽  
Radiostereometric Analysis ◽  
Specific Knowledge ◽  
Spinal Motion ◽  
Vertebral Segment

Study Design: Systematic review of literature. Objectives: This systematic review was conducted to investigate the accuracy of radiostereometric analysis (RSA), its assessment of spinal motion and disorders, and to investigate the limitations of this technique in spine assessment. Methods: Systematic review in all current literature to invesigate the role of RSA in spine. Results: The results of this review concluded that RSA is a very powerful tool to detect small changes between 2 rigid bodies such as a vertebral segment. The technique is described for animal and human studies for cervical and lumbar spine and can be used to analyze range of motion, inducible displacement, and fusion of segments. However, there are a few disadvantages with the technique; RSA percutaneous procedure needs to be performed to implant the markers (and cannot be used preoperatively), one needs a specific knowledge to handle data and interpret the results, and is relatively time consuming and expensive. Conclusions: RSA should be looked at as a very powerful research instrument and there are many questions suitable for RSA studies.

Rôle du mésoderme somitique dans le développement de la cage thoracique de I'embryon d'oiseau. I. Origine du segment sternal et mécanismes de la différentiation des côtes

Development ◽  
1975 ◽  
Vol 33 (2) ◽  
pp. 291-311
Author(s):  
Alain Chevallier
Keyword(s):  
Chick Embryo ◽  
The Other ◽  
Pectoral Girdle ◽  
Thoracic Region ◽  
Rib Cage ◽  
Intercostal Muscles ◽  
Normal Limits ◽  
Somitic Mesoderm ◽  
Vertebral Segment

Role of the somitic mesoderm in the development of the rib cage of bird embryos. I. Origin of he sternal component and conditions for the development of the ribs The developmental origin of the sternal component of the ribs and the conditions for the development of the rib cage have been elucidated in bird embryos. Experiments consisted in homo- or heterospecific transplantations of 2-day-old quail or chick embryo somitic mesoderm into chick hosts of the same age in ortho- or heterotopic position along the cephalo-caudal axis. Results show that vertebral halves, ribs (not only their vertebral segment, but also their sternal component when they possess one), the trunk and intercostal muscles, as well as at least part of the scapula originate exclusively from the somitic material, while the sternum, ventral muscles and the other parts of the pectoral girdle are derived from the somatopleural mesoderm. The development of the rib basket is subjected to following rules: — only the somitic mesoderm of the prospective thoracic region (somites 19–26) is able togive rise to ribs. — only the somitic mesoderm of the posterior thoracic region (somites 22–26) is able to develop ribs with a sternal component. — the vertebral component of ribs can develop outside the thoracic region. — contrariwise, the sternal component can form only in the vicinity of the sternal anlage, i.e within about three somites in front and rear of the normal limits of the thoracic region. It is concluded that the somitic mesoderm is already regionalized at a stage slightly preceding its metamerization and that the somatopleural territory of the sternum plays a morphogenetic role in the development of the sternal component of ribs, although it does not make a cellular contribution to their construction.

Vertebrae, Vertebral End Plates, and Disks: Concepts and Specific Pathologies

2019 ◽  
Vol 23 (05) ◽  
pp. 489-496 ◽  
Author(s):  
Alexandra S. Gersing ◽  
Klaus Woertler ◽  
Pia M. Jungmann ◽  
Christine Bollwein ◽  
Benedikt J. Schwaiger
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Imaging Techniques ◽  
Resonance Imaging ◽  
Ultrashort Echo Time ◽  
Degenerative Disk Disease ◽  
End Plate ◽  
Degenerative Disorders ◽  
Echo Time ◽  
Vertebral Segment

AbstractVertebral end plates cover the osseous vertebral body. The integrity of the cartilaginous end plates is of great importance for the entire vertebral segment because the vascularized end plate provides the nutrition for the avascular disk. Yet several pathologies may occur at these end plates at the embryonic stage, in childhood to adolescence (e.g., ossification and segmentation disorders of the spine, persistent notochord, slippage of the growth plate), as well as in the mature spine of an adult (degenerative disk disease), that may impact the integrity of the cartilaginous end plate and therefore lead to severe diseases of the spine. This article reviews specific congenital, developmental, and degenerative disorders of the vertebral end plate as well as both established and newly introduced imaging techniques, such as ultrashort echo time imaging based on magnetic resonance imaging, that are suitable for imaging of the end plate.

Lumbopelvic Reconstruction After Combined L5 Spondylectomy and Total Sacrectomy for En Bloc Resection of a Malignant Fibrous Histiocytoma

Neurosurgery ◽  
2010 ◽  
Vol 67 (2) ◽  
pp. E498-E502 ◽  
Author(s):  
Gary L. Gallia ◽  
Ian Suk ◽  
Timothy F. Witham ◽  
Susan L. Gearhart ◽  
James H. Black ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Myocutaneous Flap ◽  
Treatment Options ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Reconstruction Technique ◽  
Intractable Pain ◽  
En Bloc ◽  
Total Sacrectomy ◽  
Vertebral Segment

Abstract BACKGROUND Primary sacral neoplasms that extend superiorly to involve the distal lumbar spine represent complex surgical problems. Treatment options for these patients are often limited to hemicorporectomy. OBJECTIVE To detail our surgical technique for en bloc resection of a sarcoma involving the L5 vertebral segment and sacrum and the reconstruction of the lumbopelvic junction. METHODS A 52-year-old woman presented with intractable pain secondary to a sarcoma involving the L5 vertebral segment and sacrum. She underwent a combined L5 spondylectomy and total sacrectomy for en bloc resection of her neoplasm. A novel lumbopelvic reconstruction technique was used to establish a liaison between the lumbar spine and pelvis. RESULTS Operative complications included a venous vascular injury and a nonviable myocutaneous flap. Postoperatively, the patient had complete resolution of her pain. Unfortunately, the patient developed metastatic disease and died 5 months after her initial surgical procedure. CONCLUSION We describe a patient who underwent a combined L5 spondylectomy and total sacrectomy for en bloc resection of a lumbosacral sarcoma. Additionally, we report a novel technique to reconstruct the lumbopelvic junction. The operative procedures are detailed with the aid of radiographs, intraoperative photographs, and illustrations.

The Transverse Processes of the Cervical Vertebral Segment

Radiology ◽  
1964 ◽  
Vol 82 (5) ◽  
pp. 912-915 ◽  
Author(s):  
Arch W. Templeton ◽  
Michael W. Brown
Keyword(s):  
Vertebral Segment

scholarly journals On the vertebral neurological and biological aspects of osteochondrosis

1999 ◽  
Vol XXXI (1-4) ◽  
pp. 5-9
Author(s):  
Y. Y. Popelyansky
Keyword(s):  
Clinical Significance ◽  
X Ray ◽  
Root Cause ◽  
Local Process ◽  
Radiological Diagnostics ◽  
Biological Aspects ◽  
Vertebral Segment

The root cause of osteochondrosis is the defeat of a small pulp within the vertebral segment. The clinical significance of the pathology initiated by this education is very great. The complex knot of this discrepancy was unleashed by individual radiologists, who limited this supposedly local process to its morphological framework. However, broad-minded specialists in radiological diagnostics have long risen above this localizationism and assessed not only the X-ray morphological, but also the clinical, especially neurological, aspects of the problem.

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