Computed tomography of congenital spondylolisthesis of the sixth cervical vertebra

Edwards, Michael G.; Wesolowski, David P.; Benson, Manferd T.; Wang, Ay-Ming

doi:10.1016/0899-7071(91)90076-8

Cited by 12 publications

(7 citation statements)

References 11 publications

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“…Furthermore, cervical spondylolysis is frequently bilateral and accompanied by spondylolisthesis, whereas an absent pedicle is always unilateral. 1,5,18 Most of the reported cases have been relatively benign without the need for surgical intervention. Most patients recover with no therapy or conservative treatment.…”

Section: Discussionmentioning

confidence: 97%

Traumatic Subluxation Associated With Absent Cervical Pedicle

Moon

Lee²,

Seo³

et al. 2008

Spine

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Section: Discussionmentioning

confidence: 97%

Traumatic Subluxation Associated With Absent Cervical Pedicle

Moon

Lee²,

Seo³

et al. 2008

Spine

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“…Patients with cervical or thoracic spondyloptosis may have myelopathy and/or radiculopathy, or only cervical spasm with occipital neck pain or they may be purely asymptomatic 4 . Most of the cervical spondylolisthesis cases were diagnosed incidentally on radiographs taken after traumas 8–10 . The present patient had a significant delay in head holding.…”

Section: Discussionmentioning

confidence: 68%

“…To our knowledge this is the first case of thoracal spondyloptosis to be reported. Many theories have been suggested for the etiopathogenesis of congenital spondyloptosis, such as microtraumas, repetitive activities, environmental factors such as posture, and weakness of pars, bone, or ligament patterns that would cause segmental instability 1–10 …”

Section: Discussionmentioning

confidence: 99%

Congenital upper thoracic spondyloptosis with multiple other associated anomalies

Alıcıoğlu¹,

Demir²,

Durmus³

2009

Pediatrics International

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cells were scattered around cardiac muscle, suggesting that persistent EBV infection was involved in the degeneration of specialized cardiac muscle, Atrioventricular block has also been reported in EBV myocarditis. 9 These findings suggest that prolonged EBV infection could lead to the degeneration of specialized cardiac muscle over a long period.Allogeneic HSCT has been reported to offer a good prognosis for those with CAEBV. 2,3 A national survey, however, performed in Japan found a high risk of HSCT-related mortality. 5 Recently, successful treatment of CAEBV infection using reducedintensity stem cell transplantation (RIST) with fludarabine and melphalan with or without anti-thymocyte globulin (ATG) has been reported, 10,11 which could control CAEBV by reconstituting host immunity against EBV. Regimen-related toxicity is expected to be more effectively alleviated using a reduced intensity conditioning regimen for transplantation than by conventional myeloablative conditioning in those with an impaired residual function of organs. In contrast, it is well known that the risk of EBV-related complications after transplantation might increase with the additional use of ATG in non-myeloablative conditioning. 12 In the current case we adapted fludarabine-based, reducedintensity conditioning with ATG for transplantation, because it was predicted that the residual cardiac function might be partly impaired by coronary giant aneurysms. The additional use of ATG, however, in fludarabine-based conditioning might have been involved in the development of hemophagocytic syndrome during preconditioning for transplantation, although it was uncertain whether the serum sickness induced by the use of ATG was associated with the degeneration of cardiac muscle. To answer the many remaining questions, such as the best transplantation method for CAEBV, the optimal timing of transplantation, and the most effective conditioning regimen, a multicenter-based clinical trial is needed. References1 Cohen JI. Epstein-Barr virus infection. N. Engl. J. Med. 2000; 343: 481-92. 2 Okano M. Overview and problematic standpoints of severe chronic active Epstein-Barr virus infection syndrome. Crit. Rev. Oncol. Hematol. 2002; 44: 273-82.

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“… 1 On the other hand, the distinctive features of cervical spondylolysis are: i) bilateral spondylolysis of the articular masses; ii) incomplete fusion or spina bifida of the spinous process; iii) bilateral hypoplastic pedicles; iv) Grade I spondylolisthesis of the superior vertebral body; and v) elongation of the neural foramina. 19 To prevent subsequent improper management, it is important not to misinterpret the radiographic features of absent pedicle syndrome for a fracture or cervical spondylolysis ( Table 2 ). Despite the radiographic appearance of absent pedicle syndrome, is still a stable condition according to Punjabi and White’s definition which states that a functional spinal unit of two adjacent vertebrae and their intervening soft tissues is stable if all anterior structures (disc and vertebral body) are intact and one posterior structure (facet joints, laminae, pedicles, spinous processes, and/or posterior ligaments) is intact.…”

Section: Discussionmentioning

confidence: 99%

Misdiagnosing absent pedicle of cervical spine in the acute trauma setting

2015

Orthop Rev

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Congenital absence of cervical spine pedicle can be easily misdiagnosed as facet dislocation on plain radiographs especially in the acute trauma setting. Additional imaging, including computed tomography (CT)-scan with careful interpretation is required in order to not misdiagnose cervical posterior arch malformation with subsequent inappropriate management. A 39-year-old patient presented to the emergency unit of our university hospital after being trampled by a cow over her back and head followed by loss of consciousness, retrograde amnesia and neck pain. Her initial cervical CT-scan showed possible C5-C6 dislocation, then, it became clear that her problem was a misdiagnosed congenital cervical abnormality. Patient was treated symptomatically without consequences. The congenital absence of a cervical pedicle is a very unusual condition that is easily misdiagnosed. Diagnosis can be accurately confirmed with a CT-scan of the cervical spine. Symptomatic conservative treatment will result in resolution of the symptoms.

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Computed tomography of congenital spondylolisthesis of the sixth cervical vertebra

Cited by 12 publications

References 11 publications

Traumatic Subluxation Associated With Absent Cervical Pedicle

Traumatic Subluxation Associated With Absent Cervical Pedicle

Congenital upper thoracic spondyloptosis with multiple other associated anomalies

Misdiagnosing absent pedicle of cervical spine in the acute trauma setting

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