Hemivertebra in a crossbred heifer

Shaw, J. D.

doi:10.1136/vr.130.24.538

Cited by 6 publications

(3 citation statements)

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“…[4][5][6] In dogs, neurologic disease attributable to hemivertebrae is clinically characterized by progressive hind limb weakness, scoliosis with kyphosis, and signs of thoracolumbar pain. 3,7 The rapid progression and severity of clinical signs in the other boar from this facility did not appear compatible with the mild vertebral lesion detected in the boar of this report. 3,7 The rapid progression and severity of clinical signs in the other boar from this facility did not appear compatible with the mild vertebral lesion detected in the boar of this report.…”

Section: Commentscontrasting

confidence: 55%

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Karriker

Schwartz²,

Miles³

et al. 2006

javma

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HistoryA 30-month-old 204.5-kg (450-lb) boar was evaluated for progressive ataxia of 1 week' s duration. Approximately 6 months earlier, similar clinical signs had been observed in a boar of the same genetic lineage and of similar age. In that boar, the clinical progression was rapid and led to paresis, and the boar died within 1 week of the onset of clinical signs. The owners of the commercial swine facility were concerned that the cause of the clinical signs in the 2 boars may have been related and represented a new and growing problem for the herd; therefore, euthanasia of the boar and examination for the cause of the clinical signs were requested.On examination, the boar had mild proprioceptive deficits in both hind limbs, with a slight deficiency in balance. No other abnormalities were observed. The boar was euthanized, and a necropsy was performed. Radiographs of the thoracic portion of the vertebral column were obtained after necropsy (Figure 1).Determine whether additional imaging studies are required, or make your diagnosis from Figure 1-then turn the page * * Figure 1-Lateral (A) and dorsoventral (B) radiographic views of the thoracic portion of the vertebral column from a 30-month-old boar after necropsy. The boar had been evaluated for progressive paresis and hind limb ataxia of 1 week's duration.

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Section: Commentscontrasting

confidence: 55%

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Karriker

Schwartz²,

Miles³

et al. 2006

javma

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“…Malformations of the axial skeleton are among the most commonly recorded congenital defects in calves. [3][4][5][6]10,12,14,15 Besides agenesia of caudal vertebrae, torticollis, scoliosis, kyphosis, and spina bifida are the most frequently observed vertebral malformations. Lesions in the cervical and thoracic portions of the spinal column are often associated with arthrogryposis.…”

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confidence: 99%

Complex Vertebral Malformation in Holstein Calves

Agerholm

Berthou²,

Andersen³

et al. 2001

J VET Diagn Invest

172

168

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Abstract.A recently observed lethal congenital defect of purebred Holstein calves is reported. Eighteen genetically related calves were necropsied. One calf had been aborted on gestation day 159, and the others were delivered between day 250 and day 285. Birth weights were reduced. The defect was characterized by shortening of the cervical and thoracic parts of the vertebral column due to multiple hemivertebrae, fused and misshaped vertebrae, and scoliosis. Symmetrical flexures of the carpal joints and the metacarpophalangeal joint in combination with a slight lateral rotation of the phalanges also were present. Similar low-grade arthrogryposis was present in the posterior limbs. Fifty percent of the calves had heart malformation. Other malformations occurred in a few calves. Complex vertebral malformation (CVM) is proposed as the designation for this defect. A genetic etiology is indicated because cases occurred following breeding between genetically related individuals. Two common ancestors were found; both were former elite sires of US Holstein origin. Because of the widespread international use of semen from sires occurring in the pedigrees of affected calves, CVM is expected to occur in several countries.Malformations of the axial skeleton are among the most commonly recorded congenital defects in calves. [3][4][5][6]10,12,14,15 Besides agenesia of caudal vertebrae, torticollis, scoliosis, kyphosis, and spina bifida are the most frequently observed vertebral malformations. Lesions in the cervical and thoracic portions of the spinal column are often associated with arthrogryposis. 4 Although the heritability of these defects generally is unknown, specific inherited malformations of the vertebral column have been reported. The most important of these is the short spine lethal, which has been reported in Holstein, Angus, and Norwegian Østerdal cattle. 4,8,11,13 Around 300 hereditary congenital abnormalities have been reported in cattle. 7 However, surveillance for genetic diseases continuously reveals previously unrecognized diseases. In Denmark, a surveillance system for hereditary diseases in cattle has been in force since 1989. 1 As a part of this program, breeders report suspected cases of hereditary abnormalities, and selected cases are submitted for laboratory examination. Since October 1999, multiple Holstein calves with similar malformations have been reported. To investigate these observations, affected calves were sub- Materials and methodsAffected calves were submitted to the laboratory either directly from the breeder or through a local veterinary surgeon. If alive, calves were euthanized by intravenous administration of pentobarbital sodium. Necropsy was performed on arrival at the laboratory, 1-7 days (x ϭ 3.6 days) after death.Laboratory examination. Necropsy was performed on all calves, and samples for histopathology were taken when tissues were suitable. Samples were obtained from the central and peripheral nervous systems, skeletal and heart muscles, lung, liver, spleen, kidney, adrenal glan...

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“…The craniofacial abnormalities include multiple defects such as wry nose, parrot mouth, pig mouth, cleft palate and incomplete closure of the frontal bone that lead to meningocele, and Hydrocephalus (Leipold et al, 1993;Moritomo et al, 1999). The anomalies that were reported in the vertebral column are brachyspina (the spine of the animal is short due to abnormalities in its segments such as the cervical, thoracic or lumbar vertebrae) (Agerholm et al, 2006;Testoni et al, 2008), hemiveretebra, transitional vertebra, spina bifida, and some defects of the caudal vertebrae that form the tail such as agenesis of the tail (anury), wry tail, brachyury and polyury (Moritomo et al, 1995, Shaw 1992.…”

Section: Introductionmentioning

confidence: 99%

A Retrospective Study of the Congenital Anomalies of the Axial and Appendicular Skeleton in Cow Calves

Abdelhakiem

Elrashidy

2017

Assiut Veterinary Medical Journal

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The present study was carried out to classify, assess and manage the different anomalies of the axial and appendicular skeleton in cow calves and to determine the outcome of possible conservative and surgical management, as well as the survival period of each case. Thirty-one calves with thirty-nine skeletal anomalies were retrospectively investigated. These animals were admitted to the clinic of Veterinary Teaching Hospital at

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Hemivertebra in a crossbred heifer

Cited by 6 publications

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Complex Vertebral Malformation in Holstein Calves

A Retrospective Study of the Congenital Anomalies of the Axial and Appendicular Skeleton in Cow Calves

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