Effectiveness of Cervical Hemilaminectomy in Canine Hansen Type I and Type II Disc Disease: A Retrospective Study

Schmied, Oliver; Golini, Lorenzo; Steffen, Frank

doi:10.5326/jaaha-ms-5604

Cited by 26 publications

(42 citation statements)

References 13 publications

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“…It was suspected on MRI if the disk had extruded through the annulus fibrosus, and appeared as a compressive extradural hypointense (either in T2 or T1-weighted) single lesion, mostly lateralized and dispersed from either side of the intervertebral space [17]. Hansen type I was suspected during surgery if calcified/mineralized nucleus pulposus was extruded in the vertebral canal and/or under the dorsal longitudinal ligament [18]. …”

Section: Methodsmentioning

confidence: 99%

Prevalence of neurological disorders in French bulldog: a retrospective study of 343 cases (2002–2016)

et al. 2017

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BackgroundFrench Bulldog (FB) has significantly gained in popularity over the last few years, and seems to be frequently affected by various neurological conditions. The purpose of this retrospective study was to report the prevalences of neurological diseases in a large population of FB, presented with neurological signs between 2002 and 2016, and for which a definitive diagnosis was established. A secondary objective was to identify epidemiological characteristics regarding specific diseases in this singular breed.ResultsDuring the study period, 533 FBs were presented for neurological signs, representing 18.7% of all admitted FBs (N = 2846). In total, 343 FBs with definitive diagnosis were included in this descriptive epidemiological study. Hansen type I intervertebral disk herniation (IVDH) was by far the most common neurological disorder (45.5% of all cases). The IVDH location was cervical in 39.8%, and thoracolumbar in 60.2% of cases. The median ages for cervical and thoracolumbar IVDH were 4.2 and 4 years, respectively. C3-C4 was the most commonly affected disk (57.8% of cervical IDVH) all locations combined. Spinal arachnoid diverticulum (SAD) was detected in 25 FBs, representing the second most common myelopathy (11.3%). A concurrent spinal abnormality was identified in 64.0% of SAD cases. Brain tumours represented 36.8% of encephalopathies, with glioma (confirmed or suspected) being the most common. Meningoencephalitis of unknown origin (MUO) represented 25.0% of brain disorders, females less than 5.5 years being more likely to be affected. Aside from central nervous system conditions, otitis interna associated with peripheral vestibular signs and bilateral congenital deafness (associated with white coat) were also common.ConclusionsThe findings of this study suggest that FB seems to be prone to several neurological diseases. IVDH is clearly predominant in FB and cervical location seems more represented than in other breeds. FBs affected by IVDH tend to be younger than previously described, either for both cervical and thoracolumbar locations. Thoracic SAD was the second most common myelopathy, with a concurrent spinal anomaly identified in two thirds of the cases. MUO was more likely to affect young to middle-aged females. These findings could be of interest for owners, breeders, practicing veterinarians and insurance companies.

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Section: Methodsmentioning

confidence: 99%

Prevalence of neurological disorders in French bulldog: a retrospective study of 343 cases (2002–2016)

et al. 2017

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“…Surgery is a common treatment for acute nuclear extrusion in dogs with significant spinal cord compression, with excellent success rates in dogs with intact deep nociception. However, dogs with annular protrusion treated surgically tend to have a poorer overall recovery rate, with reported success rates ranging between 22% and 89% . Given the degree of invasiveness of surgical therapies for protrusion of the annulus fibrosus coupled with the poor success rate, further treatment options should be investigated.…”

Section: Introductionmentioning

confidence: 99%

“…However, dogs with annular protrusion treated surgically tend to have a poorer overall recovery rate, with reported success rates ranging between 22% and 89%. 5,[8][9][10][11][12][13][14] Given the degree of invasiveness of surgical therapies for protrusion of the annulus fibrosus coupled with the poor success rate, further treatment options should be investigated. In general, minimally invasive procedures are associated with lower complication rates, shorter hospitalization times, and less patient stress.…”

Section: Introductionmentioning

confidence: 99%

Distribution and Short‐ and Long‐term Effects of Injected Gelified Ethanol Into the Lumbosacral Intervertebral Disc in Healthy Dogs

Mackenzie¹,

Brisson²,

Gaitero³

et al. 2015

Vet Radiology Ultrasound

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Radiopaque gelified ethanol preparation has been described as a useful agent for treatment of humans with intervertebral disc protrusion. The material is injected into the nucleus pulposus under image guidance with intention to cause the protruded disc material to recede. Because treatment options for dogs with chronic protrusions are limited, new and minimally invasive treatments are desirable. The aim of this experimental, descriptive, prospective study was to assess the feasibility and safety of percutaneous injection of gelified ethanol into the lumbosacral intervertebral disc of dogs. Lumbosacral intervertebral discs of normal dogs (n = 9) were imaged with magnetic resonance imaging and then injected with gelified ethanol using image guidance. The accuracy of gelified ethanol placement in the nucleus pulposus and presence of leakage of the injected material were documented. Postinjection computed tomography (CT) findings (n = 9), short-term (n = 9) and long-term (n = 4) follow-up magnetic resonance imaging and CT findings were compared to document the distribution of the injected preparation and identify effects on adjacent tissues. Percutaneous injection of the intervertebral disc was successful in delivering radiopaque gelified ethanol to the nucleus pulposus in all dogs. Leakage of the injected material into the vertebral canal was present in three dogs immediately following injection and in another additional dog at 1 year following injection. All dogs tolerated the injection well and had no clinical adverse reactions within the study period. Findings indicated that injection of the nucleus pulposus of healthy dogs was well tolerated, even in the presence of mild leakage of material from the intervertebral disc.

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“…Also, access is limited caudally to the level of C6-C7 without more extensive tissue dissection or forequarter amputation [15,16]. Also, access is limited caudally to the level of C6-C7 without more extensive tissue dissection or forequarter amputation [15,16].…”

Section: Lateral Approach and Hemilaminectomymentioning

confidence: 99%

Cervical Disc Disease

Fauber¹

2014

Advances in Intervertebral Disc Disease in Dogs and Cats

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Effectiveness of Cervical Hemilaminectomy in Canine Hansen Type I and Type II Disc Disease: A Retrospective Study

Cited by 26 publications

References 13 publications

Prevalence of neurological disorders in French bulldog: a retrospective study of 343 cases (2002–2016)

Prevalence of neurological disorders in French bulldog: a retrospective study of 343 cases (2002–2016)

Distribution and Short‐ and Long‐term Effects of Injected Gelified Ethanol Into the Lumbosacral Intervertebral Disc in Healthy Dogs

Cervical Disc Disease

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