Evaluation of the intervertebral disk, vertebral body, and spinal cord for changes secondary to percutaneous laser disk ablation

2021 ◽  
Author(s):  
Ivette Nikol Irizarry ◽  
Danielle R. Dugat ◽  
Kate M. Sippel ◽  
Mark E. Payton
Keyword(s):  
Spinal Cord ◽  
Vertebral Body ◽  
Intervertebral Disk ◽  
Laser Disk

Magnetic Resonance Imaging of Spinal Cord Disease of Childhood

PEDIATRICS ◽  
1986 ◽  
Vol 78 (2) ◽  
pp. 251-256
Author(s):  
Roger J. Packer ◽  
Robert A. Zimmerman ◽  
Leslie N. Sutton ◽  
Larissa T. Bilaniuk ◽  
Derek A. Bruce ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Vertebral Body ◽  
Congenital Anomalies ◽  
Correct Diagnosis ◽  
Surface Coil ◽  
Resonance Imaging ◽  
Spinal Cord Disease ◽  
Magnetic Resonance Imaging Mri

Correct diagnosis of spinal cord disease in childhood is often delayed, resulting in irreversible neurologic deficits. A major reason for this delay is the lack of a reliable means to noninvasively visualize the spinal cord. Magnetic resonance imaging (MRI) should be useful in the evaluation of diseases of the spinal cord. A 1.5 Tesla MRI unit with a surface coil was used to study 41 children, including eight patients with intrinsic spinal cord lesions, eight patients with masses compressing the cord, 12 patients with congenital anomalies of the cord or surrounding bony structures, three patients with syrinxes, and three patients with vertebral body abnormalities. Intrinsic lesions of the cord were well seen in all cases as intrinsic irregularly widened, abnormally intense cord regions. MRI was helpful in following the course of disease in patients with primary spinal cord tumors. Areas of tumor were separable from syrinx cavities. Extrinsic lesions compressing the cord and vertebral body disease were also well visualized. Congenital anomalies of the spinal cord, including tethering and lipomatous tissue, were better seen on MRI than by any other radiographic technique. MRI is an excellent noninvasive "screening" technique for children with suspected spinal cord disease and may be the only study needed in many patients with congenital spinal cord anomalies. It is also an excellent means to diagnose and follow patients with other forms of intra- and extraspinal pathology.

Anatomy of the Spinal Cord

2021 ◽  
pp. 60-67
Author(s):  
Jennifer A. Tracy
Keyword(s):  
Spinal Cord ◽  
Vertebral Body ◽  
Spinal Canal ◽  
Conus Medullaris ◽  
Lower Limbs ◽  
Cervical Cord ◽  
Filum Terminale ◽  
Upper Limbs ◽  
Descending Pathways ◽  
Lumbar Vertebral Body

The spinal cord begins as the cervical cord immediately below the medulla and extends through the spinal canal, where it becomes the thoracic, lumbar, sacral, and coccygeal parts of the cord. In most persons, the spinal cord proper ends at the lower portion of the first lumbar vertebral body, where it forms the conus medullaris and, finally, the filum terminale. A cervical enlargement contains the innervation pathways of the upper limbs; a lumbar enlargement contains the pathways of the lower limbs. This chapter reviews ascending and descending pathways in the spinal cord.

scholarly journals An analysis of the causes of transient paraplegia during percutaneous vertebral augmentation under local anesthesia: A case series of 12 patients

2019 ◽  
Vol 27 (3) ◽  
pp. 230949901986187
Author(s):  
Guan Shi ◽  
Fei Feng ◽  
Chen Hao ◽  
Jia Pu ◽  
Bao Li ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Local Anesthesia ◽  
Vertebral Body ◽  
Case Series ◽  
Operation Time ◽  
Complete Recovery ◽  
Vertebral Compression Fractures ◽  
Vertebral Augmentation ◽  
Anesthetic Drugs

Background: Percutaneous vertebral augmentation (PVA) under local anesthesia has been widely used to treat osteoporotic vertebral compression fractures and vertebral body tumors. However, the occurrence of spinal cord or nerve root dysfunction may result in poor prognosis for patients. The aim of this study was to analyze the causes of transient paraplegia in 12 patients undergoing PVA. Methods: The medical records of 12 patients with transient paraplegia during PVA in our hospital were analyzed. Data, including operation, vertebral, anesthetic dose, operation time, recovery time, and follow-up, were extracted. Results: Among the 12 patients, ranging in age from 62 years to 83 years, with a mean age of 74 years, 8 were females and 4 were males. The average anesthetic dose injected per vertebral body was 6.38 ml. Patients required an average of 218.75 min to recover sensation and movement completely. However, the amount of anesthetic injected into each vertebral body was not related to the time required for complete recovery. Follow-up showed that all patients had regained normal bilateral sensation and motor function. Postoperative visual analog scale and Oswestry Disability Index values of the 12 patients were significantly improved compared with preoperative values. Conclusion: The complication of transient paraplegia was caused by local anesthetic drugs infiltrating into the spinal canal and inhibiting nerve conduction in the spinal cord.

Vertebral subluxation following ventral cervical decompression in the dog

2000 ◽  
Vol 36 (4) ◽  
pp. 348-358 ◽  
Author(s):  
RJ Lemarie ◽  
SC Kerwin ◽  
BP Partington ◽  
G Hosgood
Keyword(s):  
Vertebral Body ◽  
Intervertebral Disk ◽  
Slot Width ◽  
Width Ratio ◽  
Intervertebral Space ◽  
Body Width ◽  
Surgical Reduction ◽  
Vertebral Subluxation

Cervical intervertebral disk disease is commonly treated surgically by ventral decompression through a ventral slot. Nine dogs with documented vertebral subluxation following surgical creation of a ventral slot are reported. The location of the subluxation was at the fourth cervical (C4) to fifth cervical (C5) intervertebral space in two dogs, C5 to sixth cervical (C6) intervertebral space in four dogs, and C6 to seventh cervical (C7) intervertebral space in three dogs. The ventral slot width to vertebral body width ratio ranged from 0.39 to 0.80, with the ratio being 0.50 or greater in seven of eight cases evaluated radiographically. Surgical reduction and stabilization were performed in seven of nine dogs.

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