Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia
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This is a retrospective study aimed to analyse the clinical outcomes of patients following anterior cervical decompression and fusion for radiculopathy in worker's compensation, third party and non-compensable group. The outcome of 224 cases operated between 1991 to 1998 were analysed. Only patients with radiculopathy due to a cervical disc protrusion and spondylosis were included. ⋯ The worker's compensation and third party claimant groups, had an 'excellent' outcome at 65% and 69% respectively, compared to the non-compensation group at 79% (P=0.042). Rates of poor outcome were high in the worker's compensation group (9%) compared with third party (4%) and the non-compensable group (5%). Financial incentives seem to significantly influence the outcome of cervical disc surgery in our patient population.
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Retrospective analysis of 272 patients with severe head injury was performed. Patient age, Glasgow Coma Scale (GCS) score, pupillary abnormalities, impaired oculocephalic response, presence of subarachnoid haemorrhage, and multiplicity of parenchymal lesions on computerised tomography (CT) were examined. The CT findings were divided into 2 groups, diffuse brain injury (DBI) and mass lesion, according to the classification of the Traumatic Coma Data Bank. ⋯ Outcomes were unfavourable in the majority of patients with intracerebral haematoma. GCS score could predict outcome in all groups. The confidence of the outcome prediction ranged from 75.8 to 92.1%, depending on logistic regression analysis.
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The aim of this biomechanical study was to investigate the pressure-time-damage relationship on the cerebral cortex using a rat model. During brain surgery, additional cortical injuries induced by traction have been an important clinical issue. A total of 84 rats underwent a unilateral craniectomy, and conduction by hydrostatic pressure loading through a modified central venous pressure device with various combinations of magnitudes ranging from 0.5 to 10 cm H2O and duration from 0.5 to 20 minutes was then performed. ⋯ Two best-fitted exponential curves were derived from the data to establish the damaged, critical and tolerable loadings responsible for the neuron viability. This research provides information to enhance understanding of the additional cortex injuries induced by traction. Furthermore, the results may have implications in providing clinical guidance and/or development of alarm systems for minimising cortical damage during surgery.