High‐Definition Video Telescope‐Assisted Ventral Slot Decompression Surgery for Cervical Intervertebral Disc Herniation in 30 Dogs

Rossetti, Diego; Ragetly, Guillaume; Poncet, Christian

doi:10.1111/vsu.12528

Cited by 9 publications

(11 citation statements)

References 21 publications

(91 reference statements)

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confidence: 99%

“…Numerous surgical techniques have been described to treat cervical IVDH, including ventral fenestration, hemilaminectomy, dorsal laminectomy, ventral slot decompression (VSD) and modified slanted slot . Standard VSD is considered an effective and relatively safe procedure, because it provides access to the floor of the vertebral canal, enabling the removal of the ventrally located extruded nucleus pulposus and/or the protruded annulus fibrosus . Reported complications associated with the VSD procedure include incomplete decompression, severe haemorrhage and damage to vital structures—such as the trachea, oesophagus, recurrent laryngeal nerve and carotid sheath—in addition to vertebral instability and cardiopulmonary arrest …”

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Non‐ambulatory dogs with cervical intervertebral disc herniation: single versus multiple ventral slot decompression

Guo

Pfeiffer

et al. 2020

Aust Veterinary J

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Objective To evaluate the proportion of non-ambulatory dogs with cervical intervertebral disc herniation (IVDH) in a private clinic and to compare signalment and outcome between those that underwent single or multiple ventral slot decompression (VSD).Design Retrospective cohort study.Methods After screening 43,378 medical records (January 2010-September 2016), those of 185 dogs with non-ambulatory tetraparesis or tetraplegia along with cervical IVDH that had undergone single (123) or multiple (62) VSD were included in this study. Data on signalment, preoperative neurological status, location of affected intervertebral disc(s), time to ambulation and short-term outcome were compared between single and multiple VSD groups. ResultsThe proportion of non-ambulatory dogs with IVDH was 35.3%. The prevalence of non-ambulation was higher in male dogs (0.56%) than in female dogs (0.26%; P < 0.001) and in neutered dogs than in unneutered dogs (0.51% and 0.27%, respectively, P < 0.001). After surgery, 96.2% of the dogs reached ambulatory status. Dogs with multiple IVDH were older than those with single IVDH. Sex, neutering status or size did not affect the outcome or ambulation status postsurgery. The Pekingese was the most commonly affected breed in both groups. There was no difference in the time to reach ambulation and the presence of neurological deficits after surgery between dogs that underwent single and multiple VSD.Conclusions In this cohort, dogs undergoing multiple VSD had a good postoperative outcome, and their short-term functional recovery was equal to that of dogs undergoing single ventral slot compression.

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Non‐ambulatory dogs with cervical intervertebral disc herniation: single versus multiple ventral slot decompression

Guo

Pfeiffer

et al. 2020

Aust Veterinary J

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“…Of the French bulldogs presented with cervical hyperaesthesia, 84 per cent were diagnosed with IVDE, which is consistent with results of a previous studies. 46 CSM, IVDP and SM all presented with a chronic onset of clinical signs. Unsurprisingly, dogs presenting with CSM typically weighed >40 kg, while SM patients were typically <10 kg.…”

Section: Discussionmentioning

confidence: 99%

Clinical reasoning in canine cervical hyperaesthesia: which presenting features are important?

2020

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BackgroundTo evaluate whether clinical features from the history, presentation, physical and neurological examination of dogs with cervical hyperaesthesia are statistically predictive of the underlying diagnosis.MethodsTwo hundred and ninety-eight dogs presenting with cervical hyperaesthesia between January 2010 and October 2018 were investigated. Only neurologically normal dogs with cervical hyperaesthesia on examination were included, while those with concurrent neurological deficits including gait abnormalities and proprioceptive deficits were excluded. Univariate analysis of clinical variables was performed, and those associated with each diagnosis were retained for multivariable binary logistic regression models.ResultsNinety-five per cent of cervical hyperaesthesia presentations were represented by eight conditions that included steroid-responsive meningitis arteritis (SRMA; n=100), intervertebral disc extrusion (n=78), syringomyelia (SM; n=51), intervertebral disc protrusion (n=30), neoplasia (n=8), cervical spondylomyelopathy (n=7), immune-mediated polyarthritis (n=5) and meningoencephalomyelitis of unknown aetiology (n=5). Younger age (P=0.003), pyrexia (P=0.003) and haematology abnormalities (P=0.03) comprising leucocytosis, neutrophilia or monocytosis were associated with a diagnosis of SRMA.ConclusionsEasy-to-recognise clinical features can be used to identify the most likely differential diagnosis in neurologically normal dogs with cervical hyperaesthesia, which may aid the decision making of veterinary surgeons evaluating dogs with this presentation.

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“…Surgical loupes are popular among neurosurgeons but offer only limited magnification. The use of exoscopes and endoscopes has been reported in a few veterinary reports . Video‐assisted ventral slots have been used in cadavers and in clinically affected dogs, whereas mostly cadaveric studies have been reported for the thoracolumbar and lumbosacral region, with only one report of using an endoscope in a study in live dogs .…”

Section: Discussionmentioning

confidence: 99%

Minimally invasive microsurgical decompression of an intervertebral disc protrusion in a dog

Guevar

Olby

2019

Veterinary Surgery

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Objective To report the successful treatment of intervertebral disc protrusion with minimally invasive microsurgery in a large breed dog. Study design Retrospective case report. Animal A 4‐year‐old, neutered male, German shepherd dog presented with chronic progressive ambulatory paraparesis and thoracolumbar pain; lumbar intervertebral disc protrusion and severe spinal cord compression at L2‐L3 were diagnosed. Methods A minimally invasive approach was used to access the target surgical area by using a muscle splitting technique and retractors. Intraoperative fluoroscopy confirmed correct placement. Magnification and illumination through a surgical microscope were used (microsurgery) to perform the spinal cord decompression by means of a foraminotomy and lateral corpectomy. Results Technically, the combination of fluoroscopy and muscle splitting approach offered adequate minimally invasive access. Microsurgery allowed for precise and efficient spinal cord decompression. Clinically, no immediate postoperative neurological deterioration was observed. Opioid usage was limited to 24 hours postoperatively. Focal muscle swelling was observed postoperatively for 2 days, and hospital stay was 3 days. At 7 weeks postoperatively, neurological examination results were normal, and postoperative MRI confirmed spinal cord decompression. No complications were reported. Conclusion The procedure was associated with a small incision, limited muscle trauma, early improvement of the neurological status, a short hospital stay, and limited postoperative pain. Clinical significance This case provides evidence that minimally invasive microsurgery is an effective treatment for intervertebral disc protrusion in large breed dogs and may offer benefits regarding postoperative pain and functional recovery.

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High‐Definition Video Telescope‐Assisted Ventral Slot Decompression Surgery for Cervical Intervertebral Disc Herniation in 30 Dogs

Abstract: The VITOM™ ventral slot decompression technique was fast and easy to perform. It allowed a minimally invasive approach with a small ventral slot while improving spinal cord visualization. The results of this study support the use of the VITOM™ technique in spinal veterinary surgery.

Cited by 9 publications

References 21 publications

Non‐ambulatory dogs with cervical intervertebral disc herniation: single versus multiple ventral slot decompression

Non‐ambulatory dogs with cervical intervertebral disc herniation: single versus multiple ventral slot decompression

Clinical reasoning in canine cervical hyperaesthesia: which presenting features are important?

Minimally invasive microsurgical decompression of an intervertebral disc protrusion in a dog

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