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  • 1
    ISSN: 1437-2320
    Keywords: Key words Computed tomography ; Contrecoup ; Mechanism ; Posterior fossa hematoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  The aim of this paper is to present the topographical/anatomical conditions that protect the posterior fossa from posterior fossa hematoma (PFH) resulting from contrecoup mechanisms and to point out the value of neuroradiological findings in determining force direction and transition. The biomechanism of this clinical entity also plays an important role in correct forensic interpretation. Generally, PFH are rare. In our series, they occurred exclusively as a result of forces applied to the occipital region. However, their appearance as a result of contrecoup mechanisms is exceptional. Considering the particular anatomical traits that protect the posterior fossa from the force transition of fronto-occipital (F-O) direction we put forth seven hypotheses which should explain the low incidence of PFH. Between 1989 and 1998, we treated 523 patients with intracranial hematomas caused by blunt trauma. Among them were 30 patients with PFH. All of them sustained an occipital bone fracture, confirming the coup lesion. In conclusion, it is difficult to determine clinically whether forces in the F-O direction could produce PFH as a result of contrecoup mechanism. That could be only proven in vivo by neuroradiological findings.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Archives of orthopaedic and trauma surgery 115 (1996), S. 211-215 
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 10-year retrospective study of 41 consecutive patients who underwent “spinous process-plasty” is presented. We carried out laminectomy of the lumbar spine in cases of spinal stenosis, dorsomedial herniated disc and recurrent disc herniation with firm scars (traumatic and tumour cases are not included). To forestall the development of laminectomy's negative effects on spine stability, we initiated the spinous processes' reconstruction. Two groups of patients who underwent laminectomy form the basis of this presentation, one group with “spinous process-plasty” (41 patients) and the other (11 patients) without it. On postoperative neutral and dynamic X-ray films we paid attention to horizontal displacements larger than 3 mm and to negative intervertebral angular displacement. Considering such criteria, only 3.8% of those with “spinous process-plasty” developed a radiographic instability in contrast to 25% of patients without “spinous process-plasty”. These results support the use of this technique, which provides postlaminectomy lumbar spine stability.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Twenty-two patients with spinal injury were evaluated by plain radiography immediately after hospital admission. In 14 patients whose condition was stable, we performed computed tomography (CT) scanning through the involved segments. To provide better planning before neurosurgical management, we divided the vertebral column in thirds. According to this division, we concluded that these injuries are mostly extensive, severely damaging all three thirds of the vertebral column and accompanying neural structures in the majority of cases. The information acquired by CT concerning bony fragments, bone destruction, dural tear, spinal cord and nerve root compression, and neural damage directly influenced the surgical management. All patients except one underwent surgery while associated injuries of other organs were given priority in management. Injuries of the thoracic and the lumbar spine were the most common ones, frequently found in association with lesions of nearby organs. Penetrating injuries with a dural lesion were present in the majority of cases, while spinal cord injury was obvious in some. They were all well visualized using spinal CT scanning. Our view is that the role of CT is essential in guiding surgical management of war missile injuries to the spine.
    Type of Medium: Electronic Resource
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