title: MRI changes of the spinal subdural space after lumbar spine surgeries: report of two cases.
abstract: Although magnetic resonance imaging (MRI) is frequently used to assess the lumbar spine, there are few reports in the medical literature that have evaluated using MRI immediately following spinal surgery. Furthermore, descriptions of the subdural changes after lumbar spine surgery are also infrequent. In this paper, we present two cases with subdural change seen on MRI immediately after lumbar surgery. Both the patients had mild symptoms that resolved spontaneously, and the follow-up MRI scans showed resolution of the subdural changes. Subdural changes should be considered as one of the possible causes of unexpected symptoms in patients following lumbar spinal surgery.
authors.affiliation: Department of Orthopedics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan.
authors.forename: Toshinori
authors.initials: T
authors.lastname: Sakai
authors.forename: Koichi
authors.initials: K
authors.lastname: Sairyo
authors.forename: Nitin N
authors.initials: NN
authors.lastname: Bhatia
authors.forename: Ryo
authors.initials: R
authors.lastname: Miyagi
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Tamura
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Katoh
authors.forename: Natsuo
authors.initials: N
authors.lastname: Yasui