Magnetic Resonance Imaging of Posttraumatic Spinal Ligament Injury

Evaluation of the Intervertebral Disk Angle for the Assessment of Anterior Cervical Diskoligamentous Injury

“…Although intraoperative correlation would have been ideal, most patients in our study who underwent intraoperative stabilization did not undergo an anterior fusion procedure, rendering direct operative correlation impossible. However, as prior studies have shown the high diagnostic accuracy of MR imaging in the detection of ALL and disk injury, [7][8][9][10][11][12] we do not believe that this affects our overall conclusions. Furthermore, we attempted to imbue our reference standard with a high specificity by setting stringent imaging criteria for the diagnosis of ADL disruption and requiring concordance between 2 neuroradiologists.…”

“…[7][8][9][10][11][12] For our study, the ADL was considered torn if a focal area of ALL/disk discontinuity could be identified on sagittal T2 or inversion recovery sequences. To further improve our specificity, we excluded patients if a focal point of ligament/disk discontinuity could not be definitively identified or if there was not agreement between the 2 neuroradiologists regarding the presence of ADL disruption.…”

Management of burst fractures in the thoracolumbar spine

“…In plain X-rays, this can be evaluated measuring the interspinous space (>308-358 kyphosis) and the loss of vertebral body height (>50%). [8][9][10] Computed tomography is the best method to evaluate the bony components of a fracture. Magnetic resonance determines the treatment plan allowing us to evaluate the integrity of the ligaments.…”

“…Many studies have reported high sensibility and specificity in MRI to evaluate these structures, comparing them to the lesions seen during surgery. 6,7,9,10 Neurological stability is determined by the ASIA (American Spinal Injury Association) classification. There are 5 types of neurological status: being ''A'': patient has complete neurological deficit.…”

Papel del refuerzo vertebral mediante cifoplastia en el tratamiento de las fracturas dorsolumbares de índole no osteoporótico: Revisión del tema y análisis de 40 casos

“…Incluyó una resonancia magnética (RM) [sobre todo en la secuencia STIR -"short tau inversion recovery"-que muestra con claridad el edema, que aparece hiperintenso] y un escáner de las vértebras problema (útil para valorar retropulsiones del muro posterior en el conducto vertebral, así como para la realización de reconstrucciones tridimensionales) 6,9,39,24,31 . Buscamos establecer: (a) la integridad del ligamento longitudinal posterior (valorando la intrusión de elementos óseos en el conducto vertebral); (b) la deformidad espinal (definiendo el grado de acuñamiento -basándo-nos en el método de Cobb 3 -(Tabla 2), y (c) la estabilidad primaria en base al índice sagital propuesto por Farcy et al: ángulo resultante de la intersección de las líneas rectas tangenciales al límite superior o inferior de la vértebra fracturada y al disco adyacente; al ángulo resultante (deformidad cifótica), hay que restarle un "factor de corrección" (o ángulo sagital basal a dicho nivel) de +5° para las vértebras D10 y D11 y de -10° para las vértebras L2 y L3 (0° a nivel de la charnela dorsolumbar): [índice sagital = deformidad cifótica -(factor de corrección) con su signo].…”