Pain physician
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The caudal approach to the epidural space was first reported in 1901. Injection of steroids to treat low back pain was introduced in 1952. ⋯ Caudal epidural injections are associated with inaccurate needle placement when performed blindly in a substantial number of patients, resulting in intravascular injections as well as other complications. This review will discuss anatomic and technical considerations of caudal epidural injections, along with advantages, disadvantages, complications, and indications.
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Epidural neuroplasty (lysis of epidural adhesions) is an interventional technique that has emerged over the last 10 years as part of a multidisciplinary approach to treating radiculopathy with low back pain when conservative management has failed. Neuroplasty was at one time performed as a single-catheter technique using the caudal approach. It now has many variations, including placement of the catheter tip in the anterior epidural space. This article will discuss the evolution and refinement of epidural neuroplasty at our institution.
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Sympathetic blocks in the cervical and upper thoracic region are commonly used techniques for a variety of diagnostic, therapeutic and prognostic purposes. Stellate ganglion block is the common nomenclature utilized, however, stellate ganglion is present in only 80% of the population, thus, either lower cervical sympathetic block or upper thoracic sympathetic block is an appropriate term. The cervical sympathetic ganglia are identified as the superior, middle, intermediate and the inferior cervical sympathetic ganglion. ⋯ Complications of stellate ganglion block include complications related to the technique, infection, and pharmacological complications related to the drugs utilized. Cervical sympathetic or stellate ganglion block is a very commonly performed procedure. If performed correctly, this can provide good therapeutic, prognostic, and diagnostic values.
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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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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.