Factors predicting clinical impairment after surgery for cervical spinal schwannoma

Kentarou Yamane, Tomoyuki Takigawa, Masato Tanaka, Syuhei Osaki, Yoshihisa Sugimoto, Toshifumi Ozaki

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Cervical spinal schwannoma is benign, and outcomes after surgical resection are generally excellent. A surgical dilemma sometimes arises as to whether to perform total tumor removal, which carries a risk of sacrificing the nerve root, or subtotal removal, where the risk can be tumor recurrence. The purpose of this study was to identify factors with the potential to predict clinical impairment after surgery for cervical spinal schwannomas. Thirty cases of cervical schwannomas treated surgically in our institute were retrospectively reviewed; initial symptoms, tumor location, Eden classification, surgical method, functional outcome, and tumor recurrence were investigated. All permanent motor deficits were the result of resecting functionally relevant nerve roots (t.e., C5-8). The rate of permanent sensory deficit was 11% after Cl-4 nerve root resection, and 67% after C5-8 nerve root resection. Permanent neurological deficits occurred in 14% of patients younger than 40 years and 38% of those older than 40. Dumbbell tumors were associated with the need for total or ventral nerve root transection, as well as with a high incidence of tumor recurrence. The incidence of permanent neurological deficit was significantly higher in patients undergoing C5-8 nerve root resection, and tended to be higher in those over 40.

Original languageEnglish
Pages (from-to)343-349
Number of pages7
JournalActa medica Okayama
Issue number6
Publication statusPublished - 2013


  • Cervical spinal schwannoma
  • Nerve root resection
  • Neurological deficit
  • Tumor recurrence
  • Tumor resection

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)


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