scholarly journals Radiological diagnostic methods of soft-tissue components in the spinal canal forming lumbar stenosis

2011 ◽  
Vol 8 (4) ◽  
pp. 64-67
Author(s):  
Otabek Ablyazov
Keyword(s):  
Soft Tissue ◽  
Spinal Canal ◽  
Diagnostic Methods ◽  
Lumbar Stenosis

Clinical and Radiographic Correlation (According to CT) in Patients with Degenerative Lumbar Spinal Stenosis

2017 ◽  
pp. 124-130 ◽  
Author(s):  
S. G. Mlyavykh ◽  
A. Y. Aleynik ◽  
A. E. Bokov ◽  
M. V. Rasteryaeva ◽  
M. A. Kutlaeva
Keyword(s):  
Ct Scan ◽  
Spinal Canal ◽  
Clinical Manifestations ◽  
Intervertebral Discs ◽  
Morphometric Parameters ◽  
Neurogenic Claudication ◽  
Clinical Group ◽  
Lumbar Stenosis ◽  
Degenerative Lumbar Spinal Stenosis ◽  
Lumbar Spinal

Сomputed tomography (CT) is widely used in the diagnosis of  degenerative pathology of the lumbar spine, but the relationship  between clinical manifestations of lumbar stenosis and its anatomical prerequisites has not been sufficiently studied to date.The objective: to determine the significance of the morphometric  parameters of lumbar stenosis according to CT scans and to  establish their relationship with the prevailing symptoms of the disease.Material and methods. Seventy-five consecutive patients with  clinically significant lumbar stenosis who underwent CT scan before  surgery were enrolled in this study. The average values of thirteen  different morphometric parameters were calculated at LIII–SI levels of the intervertebral discs and of the pedicels in the axial and sagittal views. The possibility of classification of clinical observations and the correlation of morphometric parameters with the clinical forms of lumbar stenosis were investigated using discriminant and logistic regression analysis. Results. CT scan with high probability allocates patients with  predominant symptoms of neurogenic claudication or bilateral  radiculopathy. The most significant morphometric predictors of this  clinical group are the depth of the lateral recesses and the cross-sectional area of the spinal canal.Conclusion. CT scan significantly expands the informative value of  magnetic resonance imaging and can be used in planning the  decompressive stage of the surgery intervention in patients with lumbar spinal canal stenosis.

scholarly journals Successful operative management of an upper lumbar spinal canal stenosis resulting in multilevel lower nerve root radiculopathy

2015 ◽  
Vol 6 (01) ◽  
pp. 108-111 ◽  
Author(s):  
Shearwood McClelland ◽  
Stefan S. Kim
Keyword(s):  
Spinal Canal ◽  
Operative Management ◽  
Spinal Canal Stenosis ◽  
Neurogenic Claudication ◽  
Lumbar Stenosis ◽  
Lumbar Spinal Canal Stenosis ◽  
Nerve Roots ◽  
Canal Stenosis ◽  
Lumbar Spinal ◽  
Sacral Radiculopathy

ABSTRACTLumbar stenosis is a common disorder, usually characterized clinically by neurogenic claudication with or without lumbar/sacral radiculopathy corresponding to the level of stenosis. We present a case of lumbar stenosis manifesting as a multilevel radiculopathy inferior to the nerve roots at the level of the stenosis. A 55-year-old gentleman presented with bilateral lower extremity pain with neurogenic claudication in an L5/S1 distribution (posterior thigh, calf, into the foot) concomitant with dorsiflexion and plantarflexion weakness. Imaging revealed grade I spondylolisthesis of L3 on L4 with severe spinal canal stenosis at L3-L4, mild left L4-L5 disc herniation, no stenosis at L5-S1, and no instability. EMG revealed active and chronic L5 and S1 radiculopathy. The patient underwent bilateral L3-L4 hemilaminotomy with left L4-L5 microdiscectomy for treatment of his L3-L4 stenosis. Postoperatively, he exhibited significant improvement in dorsiflexion and plantarflexion. The L5-S1 level was not involved in the operative decompression. Patients with radiculopathy and normal imaging at the level corresponding to the radiculopathy should not be ruled out for operative intervention should they have imaging evidence of lumbar stenosis superior to the expected affected level.

scholarly journals POTENTIALITIES OF HIGH INFORMATIVE STUDIES TO ESTIMATE OBJECTIVELY LUMBAR VERTEBRAL FUSION WITH TITANIUM IMPLANTS

2005 ◽  
pp. 050-054
Author(s):  
Vladimir Valentinovich Dotsenko ◽  
N. V. Remizov ◽  
V. B. Vovkogon ◽  
I. A. Kruglov ◽  
A. N. Remizov ◽  
...  
Keyword(s):  
Spinal Canal ◽  
Clinical Manifestations ◽  
Spiral Ct ◽  
Titanium Implants ◽  
Diagnostic Methods ◽  
Complete Disappearance ◽  
Radiographic Findings ◽  
Bone Fusion ◽  
Postoperative Changes ◽  
One Year

Objective. Using high informative studies to analyze osteointegration processes in the presence of titanium implants and postoperative changes in the spinal canal after its decompression. Material and Methods. A total of 362 patients (221 female and 141 male at the age of 11 to 78 years)were operated on through extraperitoneal mini-approach to anterior spine at L2–S1 level. Postoperatively all patients underwent standard radiography. High informative diagnosis methods (CT, MRI, spiral CT) were applied to 38 patients. In 38 patients data of high informative diagnostic methods were compared with radiographic findings and clinical manifestations. Results. Complete disappearance of the pain syndrome within one year after surgery was observed in 24 patients. The pain has remitted in 14 patients. Three patients with osteoporosis had a delayed bone fusion formation. They still had a pain more than one year after surgery. Conclusion. Radiodiagnostics after the ALIF surgery is performed to evaluate bone fusion, decompression completeness, and implant position. CT and spiral CT are more useful for the evaluation of interbody fusion, while MRI – for the qualitative evaluation of the spinal canal reconstruction.

scholarly journals Diagnostic approach to malignant fibrous histiocytomas of soft tissue in dogs: a case report

2013 ◽  
Vol 58 (No. 12) ◽  
pp. 621-627 ◽  
Author(s):  
JS Ko ◽  
HJ Kim ◽  
YM Choi ◽  
JW Kim ◽  
C. Park ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Smooth Muscle Actin ◽  
Microscopic Investigation ◽  
Diagnostic Methods ◽  
World Health ◽  
Alpha Smooth Muscle Actin ◽  
Fibrous Histiocytomas ◽  
Malignant Fibrous Histiocytomas ◽  
Molecular Approaches ◽  
Health Organization

Malignant fibrous histiocytomas (MFHs), newly named as ‘undifferentiated pleomorphic sarcomas’ in 2002 by the World Health Organization, generally show an ambiguous origin. They have been described to fibroblastic or histiocytic in origin, while storiform-pleomorphic variants share a similar morphologic pattern with other sarcomas. For this reason additional diagnostic methods including immunology, ultrastructure analysis and molecular approaches are necessary for a more accurate diagnosis. We report three cases of MFH in individual dogs which presented histological characteristics of pleomorphic sarcomatoid tumours. Microscopic investigation, immunohistochemistry (vimentin, CD68, desmin, α-smooth muscle actin, and S-100) and electron microscopy were performed for diagnosis. One case was diagnosed as storiform-pleomorphic type and two were diagnosed as giant cell type MFHs. The present study demonstrates concepts of MFHs based on newly described categories and suggests useful diagnostic approaches for uncertain sarcomatoid soft tissue tumours in canines.

Spinal Fixation Hardware

2019 ◽  
pp. 224-230
Author(s):  
Kevin B. Hoover ◽  
Tim B. Hunter
Keyword(s):  
Soft Tissue ◽  
Human Body ◽  
Spinal Canal ◽  
Spinal Fixation ◽  
Disc Space ◽  
Cross Sectional ◽  
Structural Support ◽  
Cross Sectional Imaging ◽  
Sectional Imaging ◽  
The Stability

Chapter 49 discusses spinal fixation hardware. The spine is the primary structural support of the human body. Traumatic, neoplastic, infectious, or degenerative disruption of the 3 columns of the spine causing pain and instability are the primary indications for spine surgery. Implanted hardware is used to provide short-term stability while osseous fusion of bone graft develops. Radiographs are routinely used for pre- and postoperative evaluation. Spinal fusion is used to restore and maintain disc space height, to decompress the spinal canal and neural foramina, to maintain normal lordosis, and to increase the stability of involved segments. Cross-sectional imaging is important for identified hardware and soft tissue complications.

Intraoperative spinal sonography of soft-tissue masses of the spinal cord and spinal canal

1984 ◽  
Vol 143 (6) ◽  
pp. 1307-1315 ◽  
Author(s):  
RM Quencer ◽  
BM Montalvo ◽  
BA Green ◽  
FJ Eismont
Keyword(s):  
Spinal Cord ◽  
Soft Tissue ◽  
Spinal Canal ◽  
Soft Tissue Masses

scholarly journals Unilateral Laminotomy with Bilateral Spinal Canal Decompression for Lumbar Stenosis: A Technical Note

Cureus ◽  
2016 ◽  
Author(s):  
Marc Moisi ◽  
Christian Fisahn ◽  
Lara Tkachenko ◽  
R. Shane Tubbs ◽  
Daniel Ginat ◽  
...  
Keyword(s):  
Spinal Canal ◽  
Technical Note ◽  
Lumbar Stenosis

scholarly journals Therapeutic Conduct in Soft-Tissue Tumors Diagnosed in the Pregnant Patient

2018 ◽  
Vol 1 (Supplement) ◽  
pp. 5
Author(s):  
C.A. Coroleucă ◽  
C.B. Coroleucă ◽  
D. Comandaşu ◽  
A. Nastas ◽  
D. Mihai ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Therapeutic Approach ◽  
Treatment Plan ◽  
Pregnant Patient ◽  
Soft Tissue Tumors ◽  
Diagnostic Methods ◽  
Reproductive Capacity ◽  
Tumor Growth Rate ◽  
Tumor Treatment ◽  
Current Medical Practice

Abstract Introduction. Soft tissue tumors are a rare pathology encountered in the pregnant patient. Considering the patient’s potential vital risk, the concomitant evolution of pregnancy and the possible infertility acquired after treatment, the therapeutic conduct of these tumors is a challenge to current medical practice. Material and method. The paper aims to present certain cases of soft-tissue tumors diagnosed in pregnant women as well as a retrospective analysis of literature. Results. The diagnosis of certainty was significantly delayed in the case of pregnant patients. The treatment plan was complex and had to take into account the type and the location of the primary tumor, growth rate, associated symptom, age of pregnancy, as well as minimize the fetal toxic effects. Conclusions. The identification of a soft-tissue tumor during pregnancy is associated with limited diagnostic methods. A multidisciplinary team should establish the therapeutic approach for softtissue tumors diagnosed in the pregnant patient. The therapeutic approach should be individualized in each case in order to achieve a balance between tumor treatment, pregnancy outcome, and subsequent reproductive capacity of the patient.

scholarly journals Activity of genes of matrix metalloproteinases and their inhibitors in the Ligamentum flavum of patients with stenosing processes in spinal canal and dural sac

2021 ◽  
Vol 6 (6-2) ◽  
pp. 58-72
Author(s):  
L. V. Rodionova ◽  
L. G. Samoilova ◽  
V. A. Sorokovikov
Keyword(s):  
Spinal Canal ◽  
Ligamentum Flavum ◽  
Lumbar Stenosis ◽  
Specific Primers ◽  
Tissue Inhibitors ◽  
Metabolic Characteristics ◽  
Dural Sac ◽  
Expression Of Genes ◽  
Insufficient Response ◽  
Increased Activity

New data have been obtained for assessing the expression of genes of metalloproteinases and their tissue inhibitors (MMP-1, MMP-2, MMP-3, MMP-8, MMP-9, TIMP-1 and TIMP-2) in the Ligamentum flavum in patients with lumbar stenosis of spinal canal and dural sac. The features of the metabolism of the extracellular matrix (ECM) were revealed, the data obtained were compared with those for previously studied candidate genes. The search for relationships with the features of the ECM metabolic characteristics was carried out.The aim. To study the expression of genes of metalloproteinases and their tissue inhibitors in intraoperative biopsies of the Ligamentum flavum of patients with lumbar stenosis of the spinal canal and dural sac.Materials and methods. A group of 33 people (17 women, 16 men) with lumbar stenosis of the spinal canal and dural sac was studied; the average age is 45.73 ± 1.95 years. RNA was isolated from intraoperative biopsies of the Ligamentum flavum, reverse transcription was performed, and PCR using specific primers was performed.Results. In Ligamentum flavum of patients with stenosing processes of the spinal canal and dural sac, an increased activity of MMP-1 and insufficient response of TIMP-1 and TIMP-2 were found; the expression of MMP-1 increased synchronously with Dio2, and both genes decreased their activity with increasing age of the patient. In patients with Ligamentum flavum ossification, the MMR-8 gene was more actively expressed, and the synthesis of the mRNA of the MMR-9 gene decreased compared to the subgroup without ossification.

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