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Foramen magnum decompression for syringomyelia associated with basilar impression and Chiari I malformation--report of three cases.
Neurol Med Chir (Tokyo). 1991 Nov; 31(11):715-9.NM

Abstract

Anterior or posterior decompression of the foramen magnum was performed in three patients with syringomyelia associated with basilar impression and Chiari I malformation. The operative results were evaluated using the pre- and postoperative magnetic resonance (MR) images. Two patients with combined anterior and posterior cervicomedullary compression due to basilar impression and tonsillar descent received suboccipital craniectomy, upper cervical laminectomy, and dural plasty without any intradural manipulations via the posterior approach. One patient with prominent anterior cervicomedullary compression due to basilar impression and a sharp clivoaxial angle was operated on by the transoral anterior approach. Postoperatively, all patients showed a sustained shrinkage of the syrinx and rounding of the flattened cerebellar tonsils. Two patients showed upward movement of the herniated tonsils. All patients had improved symptoms during 2-4 years follow-up. Treatment of syringomyelia associated with basilar impression and Chiari I malformation requires more efficient decompressive procedures at the foramen magnum based on neurological and MR findings.

Authors+Show Affiliations

Department of Neurosurgery, Ehime University School of Medicine.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

1723159

Citation

Kohno, K, et al. "Foramen Magnum Decompression for Syringomyelia Associated With Basilar Impression and Chiari I Malformation--report of Three Cases." Neurologia Medico-chirurgica, vol. 31, no. 11, 1991, pp. 715-9.
Kohno K, Sakaki S, Nakamura H, et al. Foramen magnum decompression for syringomyelia associated with basilar impression and Chiari I malformation--report of three cases. Neurol Med Chir (Tokyo). 1991;31(11):715-9.
Kohno, K., Sakaki, S., Nakamura, H., Sakoh, M., Takeda, S., & Sadamoto, K. (1991). Foramen magnum decompression for syringomyelia associated with basilar impression and Chiari I malformation--report of three cases. Neurologia Medico-chirurgica, 31(11), 715-9.
Kohno K, et al. Foramen Magnum Decompression for Syringomyelia Associated With Basilar Impression and Chiari I Malformation--report of Three Cases. Neurol Med Chir (Tokyo). 1991;31(11):715-9. PubMed PMID: 1723159.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Foramen magnum decompression for syringomyelia associated with basilar impression and Chiari I malformation--report of three cases. AU - Kohno,K, AU - Sakaki,S, AU - Nakamura,H, AU - Sakoh,M, AU - Takeda,S, AU - Sadamoto,K, PY - 1991/11/1/pubmed PY - 1991/11/1/medline PY - 1991/11/1/entrez SP - 715 EP - 9 JF - Neurologia medico-chirurgica JO - Neurol Med Chir (Tokyo) VL - 31 IS - 11 N2 - Anterior or posterior decompression of the foramen magnum was performed in three patients with syringomyelia associated with basilar impression and Chiari I malformation. The operative results were evaluated using the pre- and postoperative magnetic resonance (MR) images. Two patients with combined anterior and posterior cervicomedullary compression due to basilar impression and tonsillar descent received suboccipital craniectomy, upper cervical laminectomy, and dural plasty without any intradural manipulations via the posterior approach. One patient with prominent anterior cervicomedullary compression due to basilar impression and a sharp clivoaxial angle was operated on by the transoral anterior approach. Postoperatively, all patients showed a sustained shrinkage of the syrinx and rounding of the flattened cerebellar tonsils. Two patients showed upward movement of the herniated tonsils. All patients had improved symptoms during 2-4 years follow-up. Treatment of syringomyelia associated with basilar impression and Chiari I malformation requires more efficient decompressive procedures at the foramen magnum based on neurological and MR findings. SN - 0470-8105 UR - https://www.unboundmedicine.com/medline/citation/1723159/Foramen_magnum_decompression_for_syringomyelia_associated_with_basilar_impression_and_Chiari_I_malformation__report_of_three_cases_ L2 - http://joi.jlc.jst.go.jp/JST.Journalarchive/nmc1959/31.715?from=PubMed DB - PRIME DP - Unbound Medicine ER -