MRI and pathological findings in a cat with cranial thoracic vertebral canal stenosis

2020 ◽  
Author(s):  
S. Cameron ◽  
J. Hoskinson ◽  
C. E. Alex
Keyword(s):  
Pathological Findings ◽  
Vertebral Canal ◽  
Canal Stenosis

scholarly journals Thoracic vertebral canal stenosis due to articular process hypertrophy in two cats treated by hemilaminectomy with partial osteotomy of the spinous process

2019 ◽  
Vol 5 (2) ◽  
pp. 205511691986317 ◽  
Author(s):  
Beatrice Enrica Carletti ◽  
Irene Espadas ◽  
Daniel Sanchez-Masian
Keyword(s):  
Spinous Process ◽  
Cord Compression ◽  
Urinary Continence ◽  
Spinal Diseases ◽  
Imaging Features ◽  
Vertebral Canal ◽  
Canal Stenosis ◽  
Articular Process ◽  
Satisfactory Outcome ◽  
Postural Reaction

Case summary A 9-year-old neutered female British Shorthair cat (case 1) and a 13-year-old neutered male domestic shorthair cat (case 2) showed signs of chronic T3–L3 myelopathy, which progressed over 6 and 12 months, respectively. On presentation, case 1 had moderate pelvic limb proprioceptive ataxia and ambulatory paraparesis, and case 2 was non-ambulatory paraparetic and had urinary incontinence. Bilateral enlargement of the articular process joints at T11–T12 in case 1 and T3–T4 in case 2 causing dorsolateral extradural spinal cord compression was shown on MRI. Surgical decompression by a unilateral approach through hemilaminectomy with partial osteotomy of the spinous process was performed in both cases. The side of the approach was chosen based on the severity of the cord compression. Surgery resulted in a satisfactory outcome with short hospitalisation times. On discharge, case 1 showed mild postural reaction deficits on both pelvic limbs. Case 2 had regained urinary continence and could ambulate unassisted, although it remained severely ataxic. The 6 month follow-up showed very mild paraparesis and proprioceptive ataxia in both cats. No chronic medical treatment was required. Relevance and novel information This is the first report to describe clinical presentation, imaging features, surgical treatment and outcomes of thoracic vertebral canal stenosis owing to bilateral articular process hypertrophy in cats with no adjacent spinal diseases. Thoracic articular process hypertrophy should be included in the differential diagnosis of adult cats with chronic progressive myelopathy. Hemilaminectomy with partial osteotomy of the spinous process might be an appropriate surgical technique in these cases.

Spinal cord compression due to extramedullary hematopoiesis in homozygous thalassemia

1975 ◽  
Vol 42 (2) ◽  
pp. 212-216 ◽  
Author(s):  
Wlllem Luyendijk ◽  
Lodewijk Went ◽  
Hans D.G. Schaad
Keyword(s):  
Spastic Paraparesis ◽  
Extramedullary Hematopoiesis ◽  
Cord Compression ◽  
Surgical Removal ◽  
Pathological Findings ◽  
Hematopoietic Tissue ◽  
Content Type ◽  
Vertebral Canal ◽  
Direct Extension ◽  
Fine Print

✓ The authors report a case of homozygous thalassemia in which a mass of hematopoietic tissue in the vertebral canal caused spastic paraparesis. Surgical removal of the tissue plus radiotherapy were successful. The pathological findings indicated direct extension of hematopoietic tissue from the adjacent bone marrow into the epidural space of the vertebral canal.

Cranial thoracic vertebral canal stenosis in three juvenile large-breed brachycephalic dogs treated by unilateral hemilaminectomy

2017 ◽  
Vol 30 (03) ◽  
pp. 223-229 ◽  
Author(s):  
Andrew Marchevsky ◽  
Amanda Miller
Keyword(s):  
Spinal Cord ◽  
Surgical Treatment ◽  
Case Series ◽  
Neurological Status ◽  
Cord Compression ◽  
Vertebral Canal ◽  
Neurological Signs ◽  
Canal Stenosis ◽  
Spinal Cord Segment ◽  
Independent Ambulation

SummaryObjective: To describe the surgical treatment and outcome for juvenile dogs with cranial thoracic vertebral canal stenosis treated by unilateral hemilaminectomy.Study design: Case series.Animals: Three large-breed brachycephalic dogs of various breeds (Dogue de Bordeaux, Australian Bulldog, Boerboel) with neurological signs consistent with a myelopathy of the third thoracic (T) to third lumbar (L) spinal cord segment.Methods: Information on clinical presentation, diagnostic imaging, surgical procedures, postoperative complications, recovery and outcome is described.Results: Neurological signs were present and progressive for two to four weeks prior to surgery and ranged from mild ataxia to paralysis. Cranial thoracic vertebral canal stenosis was diagnosed with computed tomography imaging. Lateral and dorsolateral spinal cord compression was present at multiple sites between T2 and T6. Alternating left and right-sided compressions were common. Surgical treatment was by unilateral, continuous hemilaminectomy over three to six vertebral spaces. Postoperative morbidity was minimal and return of independent ambulation was rapid (median: 13.5 days, range: 2–29 days). Neurological status in one dog worsened four months after surgery due to reoccurrence of osseous compression; unilateral hemilaminectomy was repeated in this dog. Long-term follow-up ranged from six to 10 months; neurological signs had completely resolved in one dog and substantially improved in the other two dogs.Clinical significance: Unilateral hemilaminectomy was associated with rapid return of independent ambulation and substantial improvement in neurological scores.

scholarly journals Thoracic vertebral canal stenosis in cats: clinical features, diagnostic imaging findings, treatment and outcome

2020 ◽  
Vol 22 (12) ◽  
pp. 1191-1199
Author(s):  
Sabrina Gillespie ◽  
Steven De Decker
Keyword(s):  
Diagnostic Imaging ◽  
Clinical Features ◽  
Clinical Signs ◽  
Imaging Findings ◽  
Vertebral Canal ◽  
Canal Stenosis ◽  
Veterinary Surgeons ◽  
Initial Improvement ◽  
Multiple Levels ◽  
And Control

Objectives The aim of this study was to describe the clinical features, diagnostic imaging findings, treatment and outcome in cats with thoracic vertebral canal stenosis (TVCS). Methods Medical records and imaging studies of cats with TVCS were retrospectively reviewed. Outcome was acquired from patient records and from owners or referring veterinary surgeons via a telephone questionnaire. For each case, breed-, age- and sex-matched controls were identified with CT imaging of the thoracic vertebral column. For each cat, vertebral canal height was determined at three levels for each thoracic vertebra. Vertebral canal heights were compared between control cats of different breeds and between affected and control cats of the same breed. Results Nine TVCS cases were included. British Shorthairs and male neutered cats were over-represented ( P <0.05). Median age at presentation was 9 years. All cats were presented for a chronic, progressive, painful, ambulatory, T3–L3 myelopathy. Five cats were treated conservatively, three surgically and one was euthanased. Two cats treated surgically demonstrated improvement of clinical signs and one demonstrated initial improvement followed by deterioration. Of the conservatively treated cats, three deteriorated and two improved. Compared with controls, affected cats had a lower vertebral canal height at multiple thoracic vertebral levels, being most prominent for British Shorthairs and domestic shorthairs ( P <0.05). Unaffected British Shorthairs had a lower thoracic vertebral canal height at multiple levels than control domestic shorthairs ( P <0.05). Conclusions and relevance TVCS should be considered a differential diagnosis in middle-aged to older cats presenting with a chronic, progressive, painful, T3–L3 myelopathy. The predisposition of British Shorthairs could be explained by a narrower vertebral canal in this breed.

scholarly journals LATE DIAGNOSIS OF MUCOPOLYSACCHARIDOSIS TYPE IV (MAROTEAUX–LAMY SYNDROME)

2017 ◽  
pp. 51-55
Author(s):  
L. K. Mikhailova ◽  
O. A. Polyakova ◽  
E. Yu. Zakharova ◽  
E. Yu. Voskoboeva ◽  
A. A. Kuleshov ◽  
...  
Keyword(s):  
Clinical Manifestation ◽  
Cervical Myelopathy ◽  
Surgical Intervention ◽  
Disease Development ◽  
Mucopolysaccharidosis Type ◽  
Disease Course ◽  
Vertebral Canal ◽  
Type Iv ◽  
Canal Stenosis ◽  
Spastic Tetraparesis

Peculiarities of the clinical manifestation of mucopolysaccharidosis type IV diagnosed at the age of 30 years only are presented. In spite of favorable disease course after the age of 30 years combined vertebral canal stenosis more marked at C0-C1 level, cervical myelopathy and spastic tetraparesis that required surgical intervention. Special attention was paid to the genetic aspects of diagnosis and potential causes of delayed disease development. 

scholarly journals Tolperisone in the treatment of acute and chronic nonspecific back pain

2020 ◽  
Vol 12 (4) ◽  
pp. 137-142
Author(s):  
V. A. Golovacheva ◽  
A. A. Golovacheva ◽  
O. E. Zinovyeva ◽  
V. L. Golubev
Keyword(s):  
Clinical Trials ◽  
Back Pain ◽  
Randomized Trial ◽  
Muscle Relaxant ◽  
Large Scale ◽  
Muscle Relaxants ◽  
Good Tolerance ◽  
Vertebral Canal ◽  
Canal Stenosis ◽  
Inflammatory Drugs

Nonspecific back pain (NBP) is one of the most common reasons to see a neurologist or therapist. Acute (<4 weeks' duration), subacute (4 to 12 weeks), and chronic (>12 weeks) NBPs are recognized. The diagnosis of NBP is based on anamnestic data, somatic, neurological, and neurologic-and-orthopedic examination findings and on the exclusion of the specific causes of back pain, discogenic radiculopathy, and vertebral canal stenosis. Nonsteroidal anti-inflammatory drugs (NSAIDs) and muscle relaxants are used in the pharmacotherapy of acute, subacute, and chronic NBP. Tolperisone is widely used as a muscle relaxant in Russia and in the countries of Europe and Asia. Clinical trials have shown the efficacy and good tolerance of tolperisone used alone and in combination with NSAIDs for NBP. The review presents clinical recommendations from different countries on the use of muscle relaxants in the treatment of acute and chronic NBP. It is concluded that a large-scale qualitative randomized trial should be conducted to investigate the efficacy of muscle relaxants, tolperisone in particular, in the treatment of acute, subacute, and chronic NBP.

scholarly journals Surgical treatment of multilevel lumbar vertebral canal stenosis using dynamic stabilization. Multicenter study

2017 ◽  
Vol 24 (4) ◽  
pp. 11-17
Author(s):  
A. O Gushcha ◽  
S. V Kolesov ◽  
Ekaterina N. Poltorako ◽  
D. A Kolbovskiy ◽  
A. I Kaz’min
Keyword(s):  
Surgical Treatment ◽  
Multicenter Study ◽  
Spinal Canal ◽  
Adjacent Segment ◽  
Spinal Motion ◽  
Vertebral Canal ◽  
Transpedicular Fixation ◽  
Canal Stenosis ◽  
Sf 36 ◽  
Spine Pathology

Purpose: to compare the results of surgical treatment of patients with multilevel lumbar vertebral canal stenosis. Patients and methods. Prospective randomized multicenter study included 71 patients aged 41 - 79 years. In the 1st group of patients (n=38) a standard wide decompression of the spinal canal, transpedicular fixation of one clinically and roentgenologically significant spinal motion segment using rigid stabilization and interbody fusion was performed. In the 2nd group (n=33) microdecompression of the spinal canal, transpedicular fixation of one clinically and roentgenologically significant segment using the rods of nitinol transpedicular device. The results were assessed by the pain VAS, ODI and SF-36 questionnaires, roentgenologic, CT and MRI data. Results. Mean follow up made up 1.5 years, the maximum one - 3.0 years. Significant pain relief and im- provement in the quality of life as compared with the preoperative level was reported for both groups. No sig- nificant difference between the groups was observed. Functional roentgenograms showed within 5° (4.2 - 6.5°) preservation of motion in the stabilized segment only in patients from the 2nd group. Adjacent segment pathology in 12 months after operation was diagnosed only in 1 patient from the 1st group. Conclusion. Preliminary results allow considering the dynamic transpedicular fixation using nitinol rods as an effective surgical technique for the treatment of degenerative lumbar spine pathology.

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