POSSIBILITIES OF MRI IN THE DIAGNOSIS OF A HERNIATED DISC

Abstract

The problem of diagnosing postoperative changes and complications on the spine, despite the introduction of highly informative methods of radiation diagnostics into clinical practice, continues to be an urgent task of clinical medicine. According to various authors [3, 9, 13], due to the imperfection of existing methods of surgical treatment of herniated intervertebral discs in the lumbar spine, after discectomy in the immediate and late postoperative periods, the percentage of recurrence of back pain is high, which range from 5 to 40% of the number of patients operated on. patients [8, 12]. In foreign literature, this has been called the "syndrome of unsuccessful spinal surgery" (failed back surgery syndrome) [4, 11]. The causes of this syndrome are early and late postoperative complications, most often due to recurrence of the hernia, operation of the disc , formation of a connective tissue scar, postoperative edema; left 'fragments of the intervertebral disc, it is incorrect to determine the level of ' operative' 'intervention, hernia and / or protrusion of the intervertebral discs' of other levels [7,15]. For a long time, the leading cause of recurrent pain syndromes in postoperative periods was not always identified using previously used instrumental methods research (spondylography, pneumomyelography and myelography) [1, 6]. These methods in most cases provided insufficient information to determine the cause of recurrent pain [10]. In addition, a number of invasive research methods were difficult to tolerate by patients, and in some cases they the use became 'impossible due to the presence of contraindications [14]. Modern methods of neuroimaging - computer and magnetic resonance imaging [2, 5].