PubMed · 7074412
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1982. Epidural morphine.. https://pubmed.ncbi.nlm.nih.gov/7074412/
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Patients who present with recurrent symptoms after surgical intervention aimed at correcting their lumbosacral disease pose a therapeutic challenge. A heterogeneous group of factors may underlie symptom recurrence and formulation of a therapeutic strategy depends on an accurate diagnosis of the patient's underlying problem. In this review, the authors discuss the relevant historical and physical findings in patients with epidural fibrosis and the failed back surgery syndrome.
OBJECTIVES: Prospective studies with a complete follow up in patients with spinal epidural metastases (SEM) are rare, so little is known of the incidence and relevance of recurrent spinal epidural metastases (RSEM). This prospective study was undertaken as a part of a previously started and extended prospective study to determine the occurrence and details of RSEM. METHODS: Patients with SEM of various primary malignancies were followed up until death. The diagnosis was confirmed after neurological examination by imaging studies visualising not only the clinically suspected level, but also as much of the spinal canal as possible. RESULTS: Recurrent spinal epidural metastases (RSEM) occurred in 21 of the 103 patients (20%) after a median interval of 7 months and, after treatment, a second recurrence occurred in 11 patients (11%), a third recurrence in two patients (2%), and a sixth recurrence in one patient (1%). RSEM developed about as often at the initial level (55%) as at a different level (45%), did not occur more often in patients with initially multiple SEM, but, not surprisingly, occurred much more often in patients with longer survival. About one half of the patients surviving 2 years, and nearly all patients surviving 3 years or longer developed RSEM. Ambulatory state could be preserved in most patients, even after their second recurrence. CONCLUSION: RSEM are common and even several episodes of RSEM in the same patient are not rare. Patients with SEM who survive long enough have a high risk of RSEM and prompt treatment of RSEM to maintain the ambulatory state of the patient is valuable.
Epidural steroid injections and selective nerve root blocks currently are considered standard techniques in the diagnosis and treatment of back pain. The targeted epidural and perineural steroid injection with nerve block is a new technique that combines an epidural steroid injection and a nerve block. Radiologists are best suited for performing these procedures because of their training and skills in fluoroscopy and needle procedures.