Choice of Surgical Procedures for Thoracic Ossification of the Posterior Longitudinal Ligament

Thoracic myelopathy due to ossification of ligamentum flavum: a retrospective analysis of predictors of surgical outcome and factors affecting preoperative neurological status

“…Compressive effects of hematoma and edema of spinal cord after traumatic event are likely to regress, resulting in good surgical outcome. Associated trauma has significant negative impact on recovery in cervical myelopathy [34] which may be because of larger influence of dynamic factors and greater range of motion in cervical spine making cervical spinal cord prone to more significant myelopathy following trauma as compared with thoracic myelopathy [10,35]. Preoperative neurological status does not correlate with traumatic onset of myelopathy, which may be because only two patients presented after trauma in our study.…”

“…Dural adhesions have no relation with preoperative neurological status. Being predominantly a static compressive myelopathy [10,35], preoperative neurological status and recovery correlate with the canal measurements. Although an argument of vascular involvement leading to more severe myelopathy and lesser recovery despite less severe stenosis could be given, a reasonable explanation is that vascular causes are more likely in anteriorly located thoracic OPLL, while OLF being posterior spares anterior circulation [32,33,38].…”

Treatment for Thoracic Ossification of Posterior Longitudinal Ligament with Posterior Circumferential Decompression

“…There is a lack of unified standards for surgical approach selection. Thus, there is a need to establish adequate protocols for the treatment of thoracic T‐OPLL.…”