<>Regular updates are a key feature of PainScience.com tutorials. As new science and information becomes available, I upgrade them, and the most recent version is always automatically available to customers. Unlike regular books, and even e-books (which can be obsolete by the time they are published, and can go years between editions) this document is updated at least once every three months and often much more. I also log updates, making it easy for readers to see what’s changed. This tutorial has gotten 134 major and minor updates since I started logging carefully in late 2009 (plus countless minor tweaks and touch-ups). >
<>The outlook for low back pain absolutely depends on its precise cause. For example, acute strain injuries generally heal entirely with minimal treatment. On the other hand, bony abnormalities that are irritating the spinal cord can require significant surgical repair and the outlook depends on the surgical result. Long-term optimal results often involve exercise rehabilitation programs that can involve physical therapists. >
<>“The Pain Perplex,” a chapter in the book Complications, by Atul Gawande. Gawande’s entire book is worth reading, but his chapter on pain physiology is certainly the best summary of the subject I have ever read, and a terrific reminder that good writing for a general audience can be just as illuminating for professionals. Anyone struggling with a pain problem should buy the book for this chapter alone, though you are likely to enjoy the whole thing. Much of the chapter focuses on one of the most interesting stories of low back pain I’ve read, and it is a responsible and rational account — although Gawande, like most doctors, seems to be unaware of the clinical significance, or even existence, of myofascial trigger points. >
<>As has been highlighted by research presented at the national meeting of the American College of Rheumatology, a very important aspect of the individual evaluation is the patient's own understanding and perception of their particular situation. British researchers found that those who believed that their symptoms had serious consequences on their lives and that they had, or treatments had, little control over their symptoms were more likely to have a poor outcome. This research points out to physicians the importance of addressing the concerns and perceptions that patients have about their condition during the initial evaluations. >
<>A Cochrane review of 10 antidepressant and placebo trials showed no difference in pain relief or depression severity.62 The qualitative analyses found conflicting evidence on the effect of antidepressants on pain intensity in chronic low back pain and no clear evidence that antidepressants reduce depression in chronic low-back-pain patients. Two pooled analyses showed no difference in pain relief between different types of antidepressants and placebo. Another systemic review found different results: Antidepressants were more effective than placebo,9 but the effects were not consistent with all antidepressants. Tricyclic antidepressants were moderately more effective than placebo, but paroxetine and trazodone were not.9 Antidepressants were associated with significantly higher risk for adverse events compared with placebo, with drowsiness, dry mouth, dizziness, and constipation the most commonly reported.54 Duloxetine has recently been approved by the Food and Drug Administration for treatment of chronic low back pain and osteoarthritis,63 and evidence suggests effectiveness in chronic low back pain.58,57 >
<>Whether it was brought on by arthritis, a structural or nerve problem, bending the wrong way, or lifting something a little too heavy, low back pain is frustrating as all get-out. But if you're struggling, know this: You're definitely not alone. Most people experience back pain at some point in their lives, and it's one of the most common reasons people book doctor's appointments and call out of work. It's also one of the leading causes of disability worldwide. >
<>Cauda equina syndrome is a medical emergency whereby the spinal cord is directly compressed. Disc material expands into the spinal canal, which compresses the nerves. A person would experience pain, possible loss of sensation, and bowel or bladder dysfunction. This could include inability to control urination causing incontinence or the inability to begin urination. >
<>Evidence from the small number of placebo-controlled trials does not support the use of transcutaneous electrical nerve stimulation in the routine management of chronic low back pain.36 Evidence from single lower quality trials is insufficient to accurately judge efficacy of transcutaneous electrical nerve stimulation versus other interventions for chronic low back pain or acute low back pain.10 >
<>Depending on what the doctor suspects is wrong with you, the doctor may perform an abdominal examination, a pelvic examination, or a rectal examination. These exams look for diseases that can cause pain referred to your back. The lowest nerves in your spinal cord serve the sensory area and muscles of the rectum, and damage to these nerves can result in inability to control urination and defecation. Thus, a rectal examination is essential to make sure that you do not have nerve damage in this area of your body. >
<>Infection of the discs (septic discitis) and bone (osteomyelitis) is extremely rare. These conditions lead to localized pain associated with fever. The bacteria found when these tissues are tested with laboratory cultures include Staphylococcus aureus and Mycobacterium tuberculosis (TB bacteria). TB infection in the spine is called Pott's disease. These are each very serious conditions requiring long courses of antibiotics. The sacroiliac joints rarely become infected with bacteria. Brucellosis is a bacterial infection that can involve the sacroiliac joints and is usually transmitted in raw goat's milk. >
<>There are two kinds of over-the-counter pain relievers that frequently help with back pain: nonsteroidal anti-inflammatory drugs (NSAIDs) and acetaminophen. Both have some side effects, and some people may not be able to take them. Talk to your doctor before taking pain relievers. And don't expect medication alone to solve your pain problem. Studies show you'll probably need more than one type of treatment. >
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