Case Series

A total of thirty patients with subdural tumors who underwent surgical treatment in our department were enrolled in this study and included 16 men and 14 women with an average age of 53.4 ± 13.06 years old, ranging from 27 to 86 years old. The subdural tumors of 4 cases were located in the cervical segment, 6 cases in the thoracic segment, 7 cases in the thoracolumbar segment, and 13 cases in the lumbar segment. Our pre-study found that it is very difficult in identifying the spatial relationship between subdural tumors and spinal nerve fibers in cervical and thoracic segments using CMRI. Therefore, only the subdural tumors located in thoracolumbar and lumbar segments were involved in subsequent research. Clinical data are shown in Table 1. This study was approved by the medical ethics committee of our hospital and all patients provided their signed informed consent.

Clinical data and follow-up information.

Type indicates the classification of the spatial relationship between tumor and nerves; MCS, McCormick scores; VAS, Visual Analog Scale/Score; ODI, Oswestry Disability Index.