title: [Juxta-facet Cyst Associated with Conjoined Nerve Roots:A Case Report].
abstract: We report a case of a patient with a juxta-facet cyst and conjoined nerve roots. A 66-year-old man presented with left leg pain from the past 4 months. Neurological examinations revealed L5 and S1 radiculopathy on the left side. Magnetic resonance imaging(MRI)detected a mass lesion located near the left intervertebral joint at the level of L5/S1 and canal stenosis at the level of L3/L4. A juxta-facet cyst was diagnosed by arthrography. We performed a curettage and resection of the mass, posterior lumbar interbody fusion at the level of L5/S1, and laminectomy at the level of L3/L4. Conjoined left L5/S1 nerve roots were observed during surgery. The patient recovered from the symptoms of L5 and S1 radiculopathy immediately after surgery. Postoperative review of the preoperative computed tomography images revealed bony abnormality in the L5/S1 joint. We speculate that the bony abnormality may be associated with the development of conjoined nerve roots and the juxta-facet cyst.
authors.affiliation: Spine Center, Tesseikai Neurosurgery Hospital.
authors.forename: Naoki
authors.initials: N
authors.lastname: Matsumoto
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Sasaki
authors.forename: Miyuki
authors.initials: M
authors.lastname: Fukuda
authors.forename: Shigeo
authors.initials: S
authors.lastname: Ueda
authors.forename: Minoru
authors.initials: M
authors.lastname: Hoshimaru
mesh_terms: D000368:Aged; D003560:Cysts / Q000209:etiology* / Q000601:surgery; D006801:Humans; D007403:Intervertebral Disc / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D010146:Pain / Q000209:etiology*; D011843:Radiculopathy / Q000150:complications* / Q000473:pathology / Q000601:surgery