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Basilar invagination: a study based on 190 surgically treated patients.
J Neurosurg. 1998 Jun; 88(6):962-8.JN

Abstract

OBJECT

The authors analyzed the cases of 190 patients with basilar invagination that was diagnosed on the basis of criteria laid down in 1939 by Chamberlain to assess the appropriate surgical procedure.

METHODS

Depending on the association with Chiari malformation, the anomaly of basilar invagination was classified into two groups. Eighty-eight patients who had basilar invagination but no associated Chiari malformation were assigned to Group I; the remainder of the patients, who had both basilar invagination and Chiari malformation, were assigned to Group II. The principal pathological characteristic was observed to be direct brainstem compression due to odontoid process indentation in Group I and a reduction in posterior cranial fossa volume in Group II.

CONCLUSIONS

Despite the anterior concavity of the brainstem in both groups, transoral surgery was the most suitable procedure for those patients in Group I and decompression of the foramen magnum was found to be appropriate for patients in Group II. After surgical decompression, a fixation procedure was found to be necessary in most Group I cases, but only in a small minority of Group II cases.

Authors+Show Affiliations

Department of Neurosurgery, King Edward Memorial Hospital and Seth Gordhandas Sunderdas Medical College, Parel, Bombay, India.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

9609289

Citation

Goel, A, et al. "Basilar Invagination: a Study Based On 190 Surgically Treated Patients." Journal of Neurosurgery, vol. 88, no. 6, 1998, pp. 962-8.
Goel A, Bhatjiwale M, Desai K. Basilar invagination: a study based on 190 surgically treated patients. J Neurosurg. 1998;88(6):962-8.
Goel, A., Bhatjiwale, M., & Desai, K. (1998). Basilar invagination: a study based on 190 surgically treated patients. Journal of Neurosurgery, 88(6), 962-8.
Goel A, Bhatjiwale M, Desai K. Basilar Invagination: a Study Based On 190 Surgically Treated Patients. J Neurosurg. 1998;88(6):962-8. PubMed PMID: 9609289.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Basilar invagination: a study based on 190 surgically treated patients. AU - Goel,A, AU - Bhatjiwale,M, AU - Desai,K, PY - 1998/6/3/pubmed PY - 1998/6/3/medline PY - 1998/6/3/entrez SP - 962 EP - 8 JF - Journal of neurosurgery JO - J Neurosurg VL - 88 IS - 6 N2 - OBJECT: The authors analyzed the cases of 190 patients with basilar invagination that was diagnosed on the basis of criteria laid down in 1939 by Chamberlain to assess the appropriate surgical procedure. METHODS: Depending on the association with Chiari malformation, the anomaly of basilar invagination was classified into two groups. Eighty-eight patients who had basilar invagination but no associated Chiari malformation were assigned to Group I; the remainder of the patients, who had both basilar invagination and Chiari malformation, were assigned to Group II. The principal pathological characteristic was observed to be direct brainstem compression due to odontoid process indentation in Group I and a reduction in posterior cranial fossa volume in Group II. CONCLUSIONS: Despite the anterior concavity of the brainstem in both groups, transoral surgery was the most suitable procedure for those patients in Group I and decompression of the foramen magnum was found to be appropriate for patients in Group II. After surgical decompression, a fixation procedure was found to be necessary in most Group I cases, but only in a small minority of Group II cases. SN - 0022-3085 UR - https://www.unboundmedicine.com/medline/citation/9609289/Basilar_invagination:_a_study_based_on_190_surgically_treated_patients_ L2 - https://thejns.org/doi/10.3171/jns.1998.88.6.0962 DB - PRIME DP - Unbound Medicine ER -