Andrusaitis SF, Oliveira RP, Barros Filho TEP. Study of the prevalence and risk factors for low back pain in truck drivers in the state of São Paulo, Brazil. CLINICS. 2006;61(6):503-10. OBJECTIVE:To investigate the prevalence of low back pain in truck drivers and check for possible risk factors related to the presence of low back pain. METHODS: A questionnaire was developed including personal factors such as age, practice of physical and sports activities, general health habits, occupation-related issues, and factors associated with low back pain. The body mass index (ratio of body weight to the square of height, kg/m 2 ) was calculated. Of 489 male truck drivers assessed, 410 were enrolled into the study. The statistical analysis was divided into 2 stages: descriptive analysis of data, and binary logistical regression, where the response (dependent) variable (presence of low back pain) was associated with each independent variable to check for correlation with low back pain. RESULTS: Of the 410 truck drivers evaluated, 242 (59%) presented with low back pain, while 168 (41%) did not have low back pain. The only factor correlated with the presence of low back pain was the number of working hours; the other factors had no correlation with low back pain. CONCLUSION: The prevalence of low back pain in truck drivers was 59%. The number of working hours was the only variable associated with occurrence of low back pain, with an average of about 1 hour longer work time for drivers with low back pain compared to those without it and with an odds ratio of 1.07 (P = 0.026).
OBJECTIVES:The aim of this study was to review the literature on cervical spine fractures.METHODS:The literature on the diagnosis, classification, and treatment of lower and upper cervical fractures and dislocations was reviewed.RESULTS:Fractures of the cervical spine may be present in polytraumatized patients and should be suspected in patients complaining of neck pain. These fractures are more common in men approximately 30 years of age and are most often caused by automobile accidents. The cervical spine is divided into the upper cervical spine (occiput-C2) and the lower cervical spine (C3-C7), according to anatomical differences. Fractures in the upper cervical spine include fractures of the occipital condyle and the atlas, atlanto-axial dislocations, fractures of the odontoid process, and hangman's fractures in the C2 segment. These fractures are characterized based on specific classifications. In the lower cervical spine, fractures follow the same pattern as in other segments of the spine; currently, the most widely used classification is the SLIC (Subaxial Injury Classification), which predicts the prognosis of an injury based on morphology, the integrity of the disc-ligamentous complex, and the patient's neurological status. It is important to correctly classify the fracture to ensure appropriate treatment. Nerve or spinal cord injuries, pseudarthrosis or malunion, and postoperative infection are the main complications of cervical spine fractures.CONCLUSIONS:Fractures of the cervical spine are potentially serious and devastating if not properly treated. Achieving the correct diagnosis and classification of a lesion is the first step toward identifying the most appropriate treatment, which can be either surgical or conservative.
Introduction: Some studies have made use of the antioxidative capabilities of high doses of vitamins C and E with the aim of neutralizing the noxious effects of free radicals following spinal cord lesion. Objectives: To evaluate the effects of vitamins C and E, separately and together, on the functional performance of rats that were subjected to standardized spinal cord contusion. Materials and methods: Forty male Wistar rats were used, divided into four groups of 10 animals each. Group 3 received vitamin C 100 mg kg À1 day À1 intraperitoneally; Group 2 received vitamin E 100 mg kg À1 day À1 orally; Group 1 received vitamins C and E, at the same dosages; and Group 4 was the control. The vitamin therapy was administered for 1 month and then the animals were killed. A direct contusional injury was caused and functional evaluation was performed using the Basso, Beattie and Bresnahan rating scale. The rats were evaluated on the second postoperative day and weekly thereafter, until the end of the experiment. Results: The results were evaluated by means of the one-tailed, non-paired and non-parametric
Study design: Experimental, controlled, animal study. Objectives: To evaluate the effect of GM1 ganglioside, hyperbaric oxygen and both in combination, in the treatment of experimental spinal cord lesions in rats. Setting: Brazil. Methods: Thirty-two Wistar rats with spinal cord lesions were divided into four groups: one group received GM1 ganglioside, one was submitted to hyperbaric oxygen therapy (HBOT), the third received both treatments and the fourth received no treatment (control). Results: There were no significant differences between the groups in the histological analysis, for any of the variables (necrosis, hemorrhage, hyperemia, cystic degeneration, P40.06). Neither were there any significant differences in the comparison of left and right sides in the functional tests (P40.06 for all). No significant differences were found in the locomotor ratings, in the comparison of groups at 2, 7, 21 and 28 days after the surgical procedure. However, in the evaluation on day 14, group 3, which received the combined therapy, showed a significantly higher Basso Beattie and Bresnahan score than the other groups (P ¼ 0.015). Conclusion: The therapeutic effect of GM1 in locomotor evaluation of rats submitted to spinal cord lesion is anticipated by HBOT.
Study design: Experimental, controlled, animal study. Objectives: To evaluate the influences of antidepressant treatment, treadmill gait training and a combination of these therapies in rats with experimental, acute spinal cord injury (SCI). Setting: Brazil. Methods: 48 Wistar rats were given standardized SCI; rats were then randomly assigned to four treatment groups: (1) motor rehabilitation therapy for 1 hour daily (gait training); (2) daily treatment with the antidepressant, fluoxetine (0.3 ml per 100 g intraperitoneally), beginning 24 h after the trauma; (3) combined fluoxetine treatment and gait training, or (4) untreated (controls). Neurological recovery was tested with the Basso, Beattie and Bresnahan (BBB) scale at 2, 7, 14, 21, 28 ,35 and 42 days after injury. Moreover, on day 42, all rats underwent a motor-evoked potential test (MEP); then, after euthanasia, histopathological evaluation was conducted in the area of SCI. Results: Based on the BBB scale, the combined treatment group showed significantly greater improvement compared with the other three groups, from the 14th to the 42nd day of observation. The MEP revealed that all treated groups showed significant improvement compared with the control group (Po0.02 for latency and Po0.01 for amplitude). Conclusion: Our results indicated that a combination of antidepressant and treadmill gait training was superior to either treatment alone for improving functional deficits in rats with experimental, acute SCI.
A eletromiografia tem se mostrado um método eficaz no auxilio de diagnósticos e tratamentos de desordens musculares. Na odontologia sua principal aplicação é no tratamento das Disfunções Temporomandibulares. Os profissionais de odontologia não utilizam esta técnica por desconhecerem seus benefícios ou mesmo não terem conhecimento sobre o assunto. Um dos principais objetivos do tratamento utilizando eletromiografia é mostrar ao paciente o estado atual do músculo analisado e sua evolução durante o tratamento, até chegar a uma função satisfatória.
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