Articles: back-pain.
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Comparative Study
Psychosocial factors discriminate multidimensional clinical groups of chronic low back pain patients.
Previous studies have empirically defined clinical subgroups of chronic low back pain (CLBP) patients, based on differing patterns of pain, disability and emotional distress. Because these identified groups generally are comparable in terms of physical and demographic variables, variation in functional status cannot be adequately explained by medical or social factors. In the present study we evaluated whether other psychosocial factors (stress, coping attempts, and satisfaction with social supports) might differentiate the observed groups. ⋯ Finally, a mixed picture of less life adversity, but more reliance on passive/avoidant coping strategies and more satisfactory social support networks was reported by patients categorized in the positive adaptation to pain group (i.e., high levels of pain, but relatively low levels of disability and depression). These findings suggest that psychosocial factors may be important and complex correlates of multidimensional clinical presentations of CLBP. Psychosocial factors may also offer an avenue for intervention across 3 key dimensions of CLBP.
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Two studies are presented that investigated 'fear of movement/(re)injury' in chronic musculoskeletal pain and its relation to behavioral performance. The 1st study examines the relation among fear of movement/(re)injury (as measured with the Dutch version of the Tampa Scale for Kinesiophobia (TSK-DV)) (Kori et al. 1990), biographical variables (age, pain duration, gender, use of supportive equipment, compensation status), pain-related variables (pain intensity, pain cognitions, pain coping) and affective distress (fear and depression) in a group of 103 chronic low back pain (CLBP) patients. ⋯ Furthermore, subjects who report a high degree of fear of movement/(re)injury show more fear and escape/avoidance when exposed to a simple movement. The discussion focuses on the clinical relevance of the construct of fear of movement/(re)injury and research questions that remain to be answered.
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Transient neurological symptoms have been reported after hyperbaric lidocaine 5% spinal anaesthetics. We report a patient with neurogenic back and leg pain after uncomplicated bupivacaine and morphine spinal anaesthesia. A healthy 39-yr-old woman received 1.6 ml hyperbaric bupivacaine 0.75% and 250 micrograms morphine intrathecally. ⋯ Treatment was started with amitriptyline and the symptoms resolved slowly. Complete recovery occurred over three months. Further studies to assess symptoms after spinal anaesthesia are indicated.
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Classification of back pain is a difficult task. Traditional schemes have focused on the small percentage of cases which have specific causes. Structural anomalies observed on X-ray examination explain only a small proportion of back pain cases, and the emphasis placed on these in the traditional schemes is, as Anderson put it, the tail wagging the dog (Anderson, 1977). ⋯ More pragmatic approaches start with the separation of the serious from the less serious, and the distinction between spinal pain and pain arising from outside the spine. The classification of the large majority of back pain cases which are 'non-specific' is best approached by grading the severity of the clinical and psychological features of back pain and their disabling consequences. Such grading schemes also provide the most appropriate outcome measures for clinical and epidemiological back pain research.
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In this study we estimated the costs of back pain to society in The Netherlands in 1991 to be 1.7% of the GNP. The results also show that musculoskeletal diseases are the fifth most expensive disease category regarding hospital care, and the most expensive regarding work absenteeism and disablement. One-third of the hospital care costs and one-half of the costs of absenteeism and disablement due to musculoskeletal disease were due to back pain. ⋯ The mean costs per case of absenteeism and disablement due to back pain were US$4622 and US$9493, respectively. The indirect costs constituted 93% of the total costs of back pain, the direct medical costs contributed only 7%. It is therefore concluded that back pain is not only a major medical problem but also a major economical problem.