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Query: UMLS:C0030193 (pain)
 261,466 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

By measurement of intradiscal pressure in vitro, the hydrostatic properties of the nucleus pulposus of normal lumbar intervertebral disc was established. The stress distribution within normal discs subjected to vertical load was also explained, demonstrating the high tangential strains occurring in the posterior part of the annulus fibrosus. Intravitally performed measurements of disc pressure have demonstrated how the load on the lumbar disc varies according to the position of the subject's body. Compared to the pressure or load in the upright standing position, reclining reduces the pressure by 70%, while unsupported sitting increases the load by 40% and forward leaning and weight lifting by more than 100%. Similar relatively large augmentations of the load were observed in subjects performing various commonly used muscle-strengthening exercises. Measurement of intradiscal pressure is instrumental in explaining, from a mechanical point, the occurrence of posterior ruptures in the lumbar discs, and provides a basis for the rational treatment of patients with low-back pain in so far as these exhibit increase of pain on increased mechanical loads. For the majority of patients with low-back pain, the cause is unknown, although most evidence so far presented links the lumbar intervertebral disc to the pain syndromes. Results of recent studies have shown that both chemical and mechanical factors are probably of importance. So far we cannot successfully treat the chemical part of the disc syndrome. Since all our patients exhibit more pain when the spine is mechanically loaded, knowledge gained from intravital disc-pressure measurements provides a basis for successfully treating the mechanical part of the condition. Since none of the frequently prescribed and more spectacular remedies has ever been proved statistically superior to any of the others, it is most fair to our patients and to ourselves to use simpler, less expensive, and less dangerous programmes, such as bed-rest, administration of salicylates, and proper ergonomic advice. Based on a scientific approach, the low-back-pain school is intended to help the patient to be able to cope with these back troubles, to avoid excess therapy, and to decrease the cost both for the individual and for Society.
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PMID:Towards a better understanding of low-back pain: a review of the mechanics of the lumbar disc. 12 14

105 factory workers (38 females and 67 males) have been questioned about their frequency of back pain. 60% of the females and 61% of the males have previously experienced episodes of back pain. 21% of the females and 37% of the males have been absent from work due to back pain. The incidence of back pain is not related to age, height, sort of work, or isometric muscle strength of the back (IS). For the males the incidence rises with increasing weight, i.e. combination of height and obesity, but is not related to any two single factors. For the females there is no correlation between the incidence of pain and weight. IS is correlated to height and age in the males but not in the females. Standards for IS are presented and suggested as a guide to evaluation of the working capabilities of individual subjects with back pain.
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PMID:Back pain and isometric back muscle strength of workers in a Danish factory. 12 91

Subcutaneous rhizolysis is defined as cutting the nerves to the posterior intervertebral joints. Although a blind procedure, it has proved safe in several centres and provides relief of pain in about two thirds of those who suffer from intractable, persistent backache. Some conditions such as ankylosing spondylitis and previous spinal fusion are clinically unsuitable, but this technique, which is described, is recommended for consideration before all major surgical procedures for back pain are undertaken.
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PMID:A study of subcutaneous rhizolysis in the treatment of chronic backache. 12 40

"Pain in the back" is one of the most common reasons for consultations, sick-leaves, and invalid pensions. In the Nordic countries, back trouble costs thousands of millions of kronor each year in terms of lost working days alone. Yet, the information to the doctors on problems connected with this disorder is generally sparse, and the primary doctors give too little time to the backache patients. The latter are often misunderstood - but most of those who seek medical advice for "pain in the back" really suffer pain. The failing care of backache patients was discussed at a round-table conference held by Nordisk Medicin in Oslo in October, 1975. A programme of action was outlined.
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PMID:[Round-table discussion on the weak back problem. Misunderstood backache patients, a challenge to medical care]. 12 88

After a discussion of the term "benign dorsalgia," and a description of the clinical picture of the syndrome, the term "neurotic rachialgia" is proposed as being more exact. In fact, pain is not always referred to the dorsal tract of the spine but to other areas as well. Furthermore, the syndrome is an expression of a neurotic condition. Diagnosis is based on exclusion: no clinical or radiologic signs are demonstrable. The utility of "relaxation therapy" is described by several technics.
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PMID:Neurotic rachialgia. 12 24

Back pain, with or without sciatic radiation, may come from a number of anatomical sites. Radiofrequency facet denervation suggests that a majority of patients seem to have pain referred from distress of the facet joints or the sacro-iliac joints. In those patients who are properly selected and have not had previous surgical treatment, radiofrequency denervation of the appropriate facet joints yields partial to total relief of pain in 82% of cases. The technique for doing this procedure and for selection of patients must be followed very closely but in over 800 patients surveyeyed for this report no neurologic complications have been reported. Facet denervation, when indicated, is proposed as a safe alternative to either chemonucleolysis or surgery.
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PMID:Facet denervation in the management of back and sciatic pain. 13 Feb 17

We have evaluated 100 consecutive patients with low-back pain admitted to the Portland Pain Center. The average patient had been disabled for about 6 years, and had had an average of two surgical attempts to improve his symptoms. Most of the patients considered had open claims with their Workmen's Compensation carriers. Significant gains were demonstrated in drug reduction, general well behavior, and increased range of motion and exercise tolerance. The Pain Center setting provides a multidisciplinary approach to the treatment of chronic low-back pain. Significant increases in functional capacity are demonstrated.
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PMID:Results of treatment of chronic low-back pain at the Portland Pain Center. 13 14

In a study of 1499 patients over six years in a general practice, an association was found between a history of low-back pain and a history of psychological illness, in several demographical groups. The association was strongest in patients of both sexes, aged 35--44, and in women aged 55--74. Patients with a history of low-back pain were more likely to have had a diagnosis of 'anxiety' than non-low-back-pain patients, whereas there was no significant difference in the incidence of 'depression' between those with, and those without, low-back pain.
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PMID:Psychiatric and social factors related to low-back pain in general practice. 13 92

This report reviews the outcome of surgery for back pain in 50 patients who had had previous back surgery. All were treated by exploration and posterolateral fusion of the spine. Those with nerve root irritation had thorough nerve root decompression including wide laminectomy when needed. Back pain was relieved in 44 of 50 patients, and sciatic pain was relieved in 38 or 43 patients. Postoperative functional activity (return to work) was regained in 24 of the 30 patients in whom this could be assessed. In six patients with back pain and in five patients with sciatic pain surgical benefits were insignificant; these were rated as poor results. In six patients the rehabilitation goal of satisfactory level of activity was not achieved.
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PMID:The multiply operated back: fusion of the posterolateral spine with and without nerve root compression. 13 63

Based on the assumption that there is a correlation between myofascial pain dysfunction (MPD), headache and/or back pain, this study intended to assess the occurrence of MPD among persons reporting pain in their head or back. Another main purpose was to measure the response to an offer of free examination of teeth and jaws and, if needed, also free treatment of TMJ-disorder. In an electrotechnical company comprising 698 employees, a total of 27 persons attended for examination after the offer had been presented to two groups selected by two different sampling methods. Of the attendants, women, middle-aged persons, and persons from the upper social strata were overrepresented. These same categories were also the most likely to report headache and/or back pain. Ten individuals out of the 27 attendants claimed to have experienced some TMJ-disorder, and these indivuduals tended also to complain about headache and back pain. A major finding was that the response to the offer was clearly affected by social background. The response pattern was much like that known about the seeking of treatment for MPD-- and for dental treatment generally.
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PMID:Response to an offer of consultation concerning TMJ-disorder. 13 19


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