In cats, spondylosis deformans tends to occur more … The cause is unknown. It is rare in cats. The lumbosacral junction is the juncture of the last lumbar vertebra (L7) with the sacrum (where the spinal column meets the pelvis and back legs). An MRI scan is necessary to diagnose the condition. In the control population of 405 cats, 24 (5.9%) were diagnosed with lumbosacral transitional vertebrae. Anatomy. Aortic stenosis is a congenital abnormality of the aortic valve or the left ventricle outflow tract. In this case series we describe the diagnosis and surgical treatment of five cats affected by clinical cauda equina syndrome as a result of degenerative lumbosacral stenosis. Cauda equina syndrome is a collective term used to describe the clinical signs resulting from a variety of compressive, inflammatory, infiltrative, malformative, or vascular diseases affecting the nerve roots of the cauda equina. At this junction, as between all vertebrae, are bony articular facets that articulate to form two small joints and an intervertebral disc – a cushion of gel-like cartilage – that acts as a shock absorber during physical activity. Lumbosacral stenosis Lumbosacral stenosis is a spinal condition of dogs (and less commonly cats) that resembles a ‘slipped disc’ or ‘sciatica’ in people. In the United States, subaortic stenosis (SA) is the most common form of aortic stenosis in dogs, counting for more than 95% of such cases. Harris G , Ball J , De Decker S J Feline Med Surg , … 46,48 We will use the term lumbosacral … The term lumbo refers to the lumbar vertebrae. Degenerative lumbosacral stenosis is a disorder of the vertebrae in the lower back that causes compression of the nerve roots. Three case reports documented the clinical signs and surgical outcome in cats with cauda equina syndrome as a result of degenerative lumbosacral stenosis (4,16,17). The most common cause of cauda equina syndrome seen in clinical practice is degenerative lumbosacral stenosis. Characterized by the production of bone spurs along the bottom, sides, and upper aspects of the vertebrae of the spine, spondylosis deformans is a degenerative, noninflammatory condition of the spinal column. It is believed that the incidence of DLSS could be similar than the described in dogs but may frequently go unnoticed or undiagnosed. The term sacral refers to the sacrum, which is the part of the spine that joins the lumbar spine and the pelvis. These are the bones in the lower part of the spinal column. Signs typically begin at 3 to 7 years of age and may include weakness, incontinence, and difficulty using the hind legs. Lumbosacral transitional vertebrae in cats and its relationship to lumbosacral vertebral canal stenosis. The bone spurs are simply projected growths of bone, usually grown in response to aging, or injury. Degenerative lumbosacral stenosis (DLSS) is a commonly recognized neurologic condition in dogs, but poorly documented in cats. Back pain is the most common sign of this condition in pets, although some patients with nerve compression may also appear to be lame. In this case series we describe the diagnosis and surgical treatment of five cats affected by clinical cauda equina syndrome as a result of degenerative lumbosacral stenosis. However, this abnormality is considered rare in cats… ous option in cats because of the increased had completed the questionnaire consider- Degenerative lumbosacral stenosis oc- potential for nephrotoxicity in this species ing the last month before the cat was af- curs most commonly in middle-aged and (28). Cauda equina or lumbosacral syndrome is a disease that occurs at the lumbosacral junction in the lower back. 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