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.

Surgical treatment of tumors involving the cervicothoracic junction

2003 ◽  
Vol 15 (5) ◽  
pp. 1-7 ◽  
Author(s):  
Hoang Le ◽  
Raju Balabhadra ◽  
Jon Park ◽  
Daniel Kim
Keyword(s):  
Spinal Cord ◽  
Surgical Treatment ◽  
Effective Treatment ◽  
Neurological Status ◽  
Cord Compression ◽  
Surgical Approaches ◽  
Surgical Experience ◽  
Cervicothoracic Junction ◽  
High Propensity ◽  
Polyaxial Screws

Object Tumors involving the cervicothoracic junction can have a high propensity for causing instability, with kyphosis and spinal cord compression resulting. Treatment with decompression only can lead to further instability and worsening neurological status. In this article, the authors review their surgical experience in the treatment of 19 patients with tumors involving the cervicothoracic junction. The various approaches and instrumentation techniques involved in decompression and stabilization of the cervicothoracic junction are also reviewed. Methods Aggressive instrumentation-augmented fusion after decompression of the cervicothoracic region can provide for immediate stabilization and early rehabilitation. Recent development of new hardware such as dual-diameter transition rods, polyaxial screws, and interlocking devices have enhanced the ability to fashion a strong construct for stabilization of the cervicothoracic junction. Conclusions Familiarity with complex instrumentation techniques and various surgical approaches to the cervicothoracic junction will be required for effective treatment of tumors causing instability of this region.

scholarly journals Minimally invasive spinal surgery in a young cat with vertebral hypertrophy

2021 ◽  
Vol 7 (2) ◽  
pp. 205511692110484
Author(s):  
Karin Sakamoto ◽  
Yuta Nozue ◽  
Mami Murakami ◽  
Kohei Nakata ◽  
Yukiko Nakano ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Endoscopic Surgery ◽  
Histopathological Examination ◽  
Neurological Status ◽  
Cord Compression ◽  
Good Prognosis ◽  
Minimally Invasive Spinal Surgery ◽  
Canal Stenosis ◽  
Resected Tissue ◽  
History Of

Case summary A 2-year-old neutered female Scottish Fold cat was presented with an 8-week history of progressive back pain, paraparesis and decrease of postural reactions in both pelvic limbs. MRI showed spinal cord compression from both ventral sides, which originated from the T4 vertebral body and pedicle. The lesion compressing the spinal cord had a bone-like density on CT, and endoscopic surgery was performed to excise it. Histopathological examination of the resected tissue showed no evidence of malignancy and the lesion was diagnosed as vertebral hypertrophy. After surgery, the neurological status of the cat gradually improved. The cat was ambulant at the follow-up evaluation 2 weeks after surgery. Six months later, hindlimb paresis had improved considerably, and no recurrence was observed on CT. Relevance and novel information This is the first description of thoracic vertebral canal stenosis due to hypertrophy of a single vertebra in a young cat. Excision of the hypertrophic vertebra by endoscopic surgery is less invasive than open surgery and may give a good prognosis.

scholarly journals A feather cyst causing vertebral bone lysis and spinal cord compression in a Lohmann Brown layer

2020 ◽  
Vol 91 ◽  
Author(s):  
Alaster Samkange ◽  
Borden Mushonga ◽  
Erick Kandiwa ◽  
Alec S. Bishi ◽  
Basiamisi V.E. Segwagwe ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Cervical Spinal Cord ◽  
Cervical Vertebra ◽  
Cord Compression ◽  
Cervical Region ◽  
Subsequent Growth ◽  
Spinal Cord Segment ◽  
Normal Diameter ◽  
Bone Lysis ◽  
Exerted Pressure

A feather cyst in the cervical region which, through complications of inward growth, resulted in compression of the cervical spinal cord of a Lohmann Brown layer is described. It is postulated that expansion of the cyst exerted pressure on the adjacent cervical vertebra and through bone lysis created an opening through which the cyst protruded, thereby exerting pressure on the spinal cord. The affected spinal cord segment was reduced to a fifth of its normal diameter. The bird most likely died of starvation because of limb and neck paralysis and disorientation. Although the cause of the feather cyst was not conclusively identified, moulting and trauma could have triggered its formation and subsequent growth.

Congenital Portosystemic Shunts in Five Mature Dogs With Neurological Signs

2007 ◽  
Vol 43 (6) ◽  
pp. 322-331 ◽  
Author(s):  
Rebecca Christine Windsor ◽  
Natasha J. Olby
Keyword(s):  
Hepatic Encephalopathy ◽  
Surgical Treatment ◽  
Old Age ◽  
Case Series ◽  
Common Cause ◽  
Neurological Signs ◽  
Neurological Abnormalities ◽  
Portosystemic Shunts ◽  
Gait Abnormalities

Congenital portosystemic shunts are a common cause of hepatic encephalopathy and are typically first identified when dogs are <2 years of age. This case series describes five dogs with congenital portosystemic shunts; the dogs were presented for severe encephalopathic signs during middle or old age. Three dogs had portoazygos shunts, and four dogs had multifocal and lateralizing neurological abnormalities, including severe gait abnormalities and vestibular signs. All five dogs responded to medical or surgical treatment, demonstrating that older animals can respond to treatment even after exhibiting severe neurological signs.

Malignant spinal cord compression in cerebral glioblastoma multiforme: a multicenter case series and review of the literature

2012 ◽  
Vol 110 (2) ◽  
pp. 221-226 ◽  
Author(s):  
Alexander Tinchon ◽  
Stefan Oberndorfer ◽  
Christine Marosi ◽  
Roberta Rudà ◽  
Cornelia Sax ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Glioblastoma Multiforme ◽  
Spinal Cord Compression ◽  
Case Series ◽  
Cord Compression ◽  
Review Of The Literature

scholarly journals Thoracic Vertebral Hemangioma with Spinal Cord Compression: Multidisciplinary Surgical Treatment and Follow-up of Six Patients

2016 ◽  
Vol 8 (4) ◽  
pp. 462-467 ◽  
Author(s):  
Hui-lin Zhang ◽  
Yong-cheng Hu ◽  
Rajendra Aryal ◽  
Xin He ◽  
Deng-xing Lun ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Surgical Treatment ◽  
Spinal Cord Compression ◽  
Cord Compression ◽  
Vertebral Hemangioma

Vasogenic edema following acute and chronic spinal cord compression in the dog

1975 ◽  
Vol 42 (2) ◽  
pp. 155-165 ◽  
Author(s):  
Ian R. Griffiths
Keyword(s):  
Spinal Cord ◽  
Vascular Permeability ◽  
Vasogenic Edema ◽  
Reactive Hyperemia ◽  
Balloon Catheter ◽  
Cord Compression ◽  
Dorsal Column ◽  
Content Type ◽  
Spinal Cord Segment ◽  
Conduction Failure

✓ The T-13 spinal cord segment of dogs was compressed both acutely and chronically by means of a balloon catheter. The vascular permeability to protein was assessed using Evans blue albumin (EBA), and the dorsal column evoked potential recorded to monitor conduction failure. With acute compression sufficient to cause conduction failure there was a marked leakage of EBA from the intermediate gray matter, which spread into the dorsolateral white matter. The degree of edema was similar whether the compression was maintained or released. Chronic compression maintained over 4 to 5 hours did not increase vascular permeability, but following release of compression leakage of EBA occurred in the same cord locations observed with leakage from acute compressions. This increased permeability following release of chronic compression may result from reactive hyperemia. Dorsal column conduction returned after the release of both acute and chronic compression. The extravasated EBA was present both in the extracellular space and within cells. The results and their clinical application are discussed.

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