Articles: back-pain.
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Comparative Study
Percutaneous vertebroplasty for pain relief and spinal stabilization.
This was a retrospective review of 47 consecutive patients (1995-1998) in whom percutaneous intraosseous methylmethacrylate cement injection (percutaneous vertebroplasty) was used to treat osteoporotic vertebral compression fractures and spinal column neoplasms. ⋯ Percutaneous vertebroplasty provided significant pain relief in a high percentage of patients with osteoporotic fractures. The procedure provided spinal stabilization in patients with malignancies but did not produce consistent pain relief. Complications were minor and infrequent. Percutaneous vertebroplasty is a promising therapy for patients with osteoporotic fractures and for selected vertebral column neoplasms.
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Facet joints, as a source of low back pain, have attracted considerable attention and been a source of controversy in recent years. Significant progress has been made in precision diagnosis of chronic low back pain with neural blockade. In the face of less than optimal diagnostic information offered by imaging and neurophysiologic studies, and in the face of mounting evidence showing lack of correlation between clinical features, physical findings, and diagnosis of facet joint mediated pain, controversial features have been described to validate the assumption of facet joint mediated pain by set criteria. ⋯ However, these six feature involved only a small number of patients. In conclusion, facet joint mediated pain is a common entity in patients suffering with chronic low back pain nonresponsive to conservative care, who present to a nonuniversity pain management practice. However, the history, clinical features, and radiological features are of no significance or assistance in making the diagnosis of facet joint mediated pain with certainty.
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Objective. This one-year pilot outcome study was designed to investigate prospectively a series of patients with chronic discogenic back pain who underwent intradiscal electrothermal annuloplasty (IDET). Patients with chronic discogenic low back pain usually respond poorly to conservative medical care. ⋯ There were no significant complications. Conclusions. One-year pilot study outcome results suggest that IDET may be an effective, minimally invasive treatment for chronic discogenic low back pain.
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Objective. The authors attempted to design and conduct a randomized, prospective study to investigate the efficacy of spinal cord stimulation (SCS) for patients with chronic back and leg pain following at least one previous surgery. While the scientific advantages of the randomized, prospective trial are considerable, the authors encountered numerous practical and ethical difficulties with conducting these trials. ⋯ Conclusions. By utilizing a randomized interventional study design, problems of comparability of procedures, provider reluctance to participate in randomized clinical trials, provider bias, detection bias, and transfer bias are eliminated. It is suggested that future investigations, particularly those which are interventionally or device-based, conform to this particular model.
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Internal disc disruption is a common cause of disabling low back pain in a substantial number of young, healthy adults. Crock described this painful entity and reported annular fissures that distort the internal architecture of the disc; Externally the disc appears relatively intact and undeformed. A clinical diagnosis of internal disc disruption, in absence of objective clinical findings, is extremely difficult. ⋯ Recent studies indicate the existence of a biochemical/ biomechanical model of discogenic pain, which explains the disabling low back pain in some subjects with no objective evidence of nerve-root compromise. However, a reluctance to acknowledge internal disc disruption as a valid clinical entity delays diagnosis and treatment. Failure to identify and treat this entity early and aggressively results in longterm disability, thereby perpetuating the enigma of chronic low back pain.