<>Acute low back pain can be defined as six to 12 weeks of pain between the costal angles and gluteal folds that may radiate down one or both legs (sciatica). Acute low back pain is often nonspecific and therefore cannot be attributed to a definite cause. However, possible causes of acute low back pain (e.g., infection, tumor, osteoporosis, fracture, inflammatory arthritis) need to be considered based on the patient's history and physical examination. Table 1 presents the differential diagnosis of acute low back pain.5,6 >
<>The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content. >
<>Application of Ice or Heat. Low-quality evidence shows that in the first five days of acute low back pain, the use of heat treatments may be more effective for reducing pain and disability than nonheat wraps, NSAIDs, or acetaminophen, but shows no difference between heat application and McKenzie therapy at seven days.32 A low-quality study found that heat therapy in conjunction with education or NSAIDs is more effective than education or NSAIDs alone at 14 days.33 Ice and heat therapy have similar analgesic effects.32 >
<>An accurate history and physical examination are essential for evaluating acute low back pain. Often, patients awaken with morning pain or develop pain after minor forward bending, twisting, or lifting. It is also important to note whether it is a first episode or a recurrent episode. Recurrent episodes usually are more painful with increased symptoms. Red flags are often used to distinguish a common, benign episode from a more significant problem that requires urgent workup and treatment (Table 2).5,6,8 A recent study shows that some red flags are more important than others, and that red flags overall are poor at ruling in more serious causes of low back pain.8 Patients with back pain in the primary care setting (80 percent) tend to have one or more red flags, but rarely have a serious condition.8 However, physicians should be aware of the signs and symptoms of cauda equina syndrome, major intra-abdominal pathology, infections, malignancy, and fractures (Tables 15,6 and 25,6,8). Cauda equina syndrome and infections require immediate referral. Family physicians should rely on a comprehensive clinical approach rather than solely on a checklist of red flags. >
<>To understand various causes of low back pain, it is important to appreciate the normal design (anatomy) of the tissues of this area of the body. Important structures of the low back that can be related to symptoms in this region include the bony lumbar spine (vertebrae, singular = vertebra), discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis and abdomen, and the skin covering the lumbar area. >
<>Long-term bed rest is not only no longer considered necessary for most cases of back pain, it is actually potentially harmful, making recovery slower and potentially causing new problems. In most cases, you will be expected to start normal, nonstrenuous activity (such as walking) within 24 to 72 hours. After that ask your doctor about controlled exercise or physical therapy. Physical therapy treatments may employ massage, ultrasound, whirlpool baths, controlled application of heat, and individually tailored exercise programs to help you regain full use of the back. Strengthening both the abdominal and back muscles helps stabilize the spine. You can help prevent further back injury by learning - and doing - gentle stretching exercises and proper lifting techniques, and maintaining good posture. >
<>Doctors used to prescribe bed rest for back pain. But now we know that lying still is one of the worst things you can do. It can make back pain worse and lead to other complications. Don't rest for more than a day or two. It's important to get up and slowly start moving again. Exercise has been found to be one of the most effective ways to relieve back pain quickly. Try swimming, walking, or yoga. >
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