Surgical Treatment of Degenerative Lumbosacral Stenosis in Dogs

Danielsson, Fredrik; Sjöström, Lennart

doi:10.1053/jvet.1999.0091

Cited by 98 publications

(184 citation statements)

References 25 publications

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“…Degenerative lumbosacral stenosis (DLSS) is a common condition of middle-aged and older large breed dogs, particularly German Shepherd and working dogs, leading to potentially debilitating pain and neurological deficits (Oliver et al 1978;Danielsson and Sjöstrom 1999;Suwankong et al 2008). Neurological dysfunction is related to compression of the cauda equina nerve roots secondary to pathophysiologic processes such as intervertebral disk protrusion, articular facet joint misalignment, and chronic lumbosacral instability (Lenehan and Tarvin 1998;De Risio et al 2001;Benninger et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Minimally invasive approach to lumbosacral decompression in a cadaveric canine model

Dent

Fosgate

Hettlich

2015

New Zealand Veterinary Journal

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AIMS: To determine efficacy of a minimally invasive (MI) surgical approach using a human MI lumbar retractor for canine lumbosacral dorsal laminectomy and partial discectomy and to compare this technique to the standard open surgical (OS) approach.METHODS: Lumbosacral dorsal laminectomy and partial discectomy was performed on 16 largebreed canine cadavers using either a standard OS (n=8) or MI (n=8) approach. Skin and fascial incision length, procedure time, and intraoperative complications were recorded. Postoperatively specimens were evaluated for laminectomy and discectomy dimensions, and visible damage to the cauda equina and exiting nerve roots.RESULTS: Median length of skin and fascial incisions in the OS group were longer than in the MI group (p<0.001). Median laminectomy length was similar between both approaches (p=0.234) but width was greater for the MI than OS approach (p=0.002). Both approaches achieved similar partial discectomy width (p=0.279). Overall surgical time was longer for MI approaches compared to OS, with a median of 18.5 (min 15.5, max 21.8) minutes for MI compared to 14.6 (min 13.1, max 16.9) minutes for OS (p=0.001).CONCLUSIONS: The MI approach reduced incision lengths while retaining comparable laminectomy and discectomy dimensions. For this in vitro model the MI approach required more time to complete, but this difference may not be relevant in clinical cases.

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Section: Introductionmentioning

confidence: 99%

Minimally invasive approach to lumbosacral decompression in a cadaveric canine model

Dent

Fosgate

Hettlich

2015

New Zealand Veterinary Journal

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“…Captive non domestic felids, however, can be prone to spinal disease because of inadequate exercise, obesity, and inappropriate enclosure surfaces (Kolmstetter et al 2000). In dogs, the most common causes of cauda equina compression are age-related pathologic changes including DLSS (De Risio et al 2005, Danielsson andSjöström 1999). Degenerative changes, such as soft tissue overgrowth of ligamentous structures, are thought to result from the considerable transfer of forces and high mobility of the lumbosacral joint, mainly by flexion movements between L7 and the sacrum (Sharp et al 2005, De Risio et al 2005.…”

Section: Discussionmentioning

confidence: 99%

“…However, the most consistent clinical sign is lumbosacral pain, indicated by characteristic pos tures which increases the diameter of the vertebral canal, Aceptado: 19.01.2011. * College of Veterinary Medicine, University of Florida, Gainesville, FL 32610, USA;Casilla 567, Valdivia, Chile;cverdugo@ufl.edu and decreases the spinal nerve compression (Danielsson andSjöström 1999, Sharp andWheeler 2005). Here, we describe a clinical case and successful surgical treatment of DLSS in a puma (Puma concolor araucana) caused by the hypertrophy of the L7-S1 ligamentum flavum.…”

Section: Introductionmentioning

confidence: 99%

Surgical correction of degenerative lumbosacral stenosis in a puma (Puma concolor araucana)

et al. 2011

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COMMUNICATION Surgical correction of degenerative lumbosacral stenosis in a puma(Puma concolor araucana) RESUMENUn ejemplar de puma (Puma concolor araucana) macho intacto, adulto (12 años), fue evaluado debido a una paraparesis y deambulación anormal de los miembros pélvicos. Al examen neurológico se determinó una paraparesia progresiva, ataxia simétrica de los miembros pélvicos y parálisis de la cola. Se obtuvieron radiografías simples y una tomografía computarizada (TC) del segmento lumbosacro como exámenes diagnósticos para determinar posibles causas. El examen de TC confirmó una estenosis del canal vertebral en el segmento vertebral L7-S1. Se realizó una laminectomía dorsal con el fin de descomprimir el área afectada. Se tomaron muestras de tejido blando del área afectada para su análisis histopatológico. El material colectado presentó moderadas células inflamatorias e hipertrofia del ligamento flavum. Dos semanas después de la cirugía, el animal mostró un mejoramiento neurológico progresivo y retornó a una ambulación normal.

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“…3 Decompression surgery was associated with clinical improvement in signs of pain and lameness in up to 93% of affected dogs, with 41% to 67% of working dogs returning to full intended function. 4,5 Recurrence of clinical signs may occur in 17% to 55% of dogs undergoing decompression surgery alone. 4 Factors that may be associated with poorer outcomes in dogs with lumbosacral disease include older age at the time of surgery, radiographic evidence of foraminal narrowing, severe preoperative neurologic dysfunction (particularly urinary incontinence, fecal incontinence, or both), and hypertrophic or remodeled articular facets and interarcuate ligament.…”

Section: Review Of the Evidencementioning

confidence: 99%

What Is the Evidence?

Cook

Cook²

2010

javma

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ProblemA 4-year-old male German Shepherd Dog weighing 33.2 kg (73 lb) was evaluated at the University of Missouri Veterinary Medical Teaching Hospital for a 3-month history of decreased ability to perform athletically. The dog trained for and competed in agility events, and the owner had observed that the dog would refuse or not successfully complete jumps and A-frames during training and competition. According to the owner, the dog also had signs of mild, intermittent lameness of the right hind limb. When the owner first noticed the problem, the dog was evaluated by a veterinarian who diagnosed a possible hamstring (semimembranosus, semitendinosus, and biceps femoris muscles) injury and recommended physical rehabilitation and NSAID medications. The owner also sought treatment from a veterinarian practicing chiropractic manipulations. This treatment regimen was undertaken for 6 weeks with no improvement observed.At the hospital, physical and orthopedic examinations revealed the dog was in good body condition (score of 5 on a 9-point scale) but had apparent atrophy of the gluteal and thigh musculature bilaterally. The dog had a consistent shortening of the stride in the right hind limb. No evidence of pain or musculoskeletal abnormality was detected during palpation and manipulation of either forelimb and the hip, stifle, and tibiotarsal joints. Marked signs of pain in the dog were observed to be associated with pelvic lordosis and direct palpation over the lumbosacral joint. Neurologic examination revealed normal cranial nerve and thoracic limb neurologic function. Slightly delayed conscious proprioception responses were evident in the hind limbs. A slightly exaggerated patellar reflex with slightly depressed sciatic and cranial tibial reflexes was detected in the right hind limb. The neurologic abnormalities were localized to the L4 through S3 spinal cord segments.The dog was sedated with medetomidine to allow for palpation and radiography. While the dog was sedated, palpation and radiography of the hip and stifle regions as well as palpation of the tarsal joints revealed no abnormalities. Radiographic views of the lumbosacral vertebral column were obtained, including a ventrodorsal view and lateral views with the vertebral column in a neutral position, flexed at the lumbosacral joint, and extended at the lumbosacral joint. Assessment of the radiographs revealed sclerosis of the endplate of S1, bony remodeling of the caudal articular In cooperation with facets of L7 as well as the cranial articular facets of S1, and subluxation of the facet joints at L7-S1 and stairstepping of the L7 and S1 vertebral bodies and lamina in the flexed and extended views. A presumptive diagnosis of dynamic lumbosacral stenosis and lumbosacral instability (LSI) was made, and computed tomography (CT) with the possibility for subsequent surgery was recommended to the owner.The following day, the dog was anesthetized and CT imaging was performed with the vertebral column in a neutral position, flexed at the lumbosacral joint, and extend...

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Surgical Treatment of Degenerative Lumbosacral Stenosis in Dogs

Abstract: Surgical treatment of DLSS with dorsal laminectomy and fenestration generally resulted in good to excellent clinical outcome.

Cited by 98 publications

References 25 publications

Minimally invasive approach to lumbosacral decompression in a cadaveric canine model

Minimally invasive approach to lumbosacral decompression in a cadaveric canine model

Surgical correction of degenerative lumbosacral stenosis in a puma (Puma concolor araucana)

What Is the Evidence?

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