CC BY-NC-ND 4.0 · Indian Journal of Neurosurgery 2018; 07(02): 122-128
DOI: 10.1055/s-0038-1667284
Original Article
Thieme Medical and Scientific Publishers Private Ltd.

A Study to Analyze the Tentorial Incisura in Indian Population, for Racial Differences and Its Impact in the Outcome of Patients with Head Injury

Deiveegan Kunjithapatham
1   Department of Neurosurgery, SRM Medical College Hospital and Research Centre, Kattankulathur, Kanchipuram, Tamil Nadu, India
Jeyaselvasenthilkumar Thotalampatti Pachiyappan
1   Department of Neurosurgery, SRM Medical College Hospital and Research Centre, Kattankulathur, Kanchipuram, Tamil Nadu, India
Maria Subison Soosai Fernand
2   Department of Neurosurgery, Velammal Medical College Hospital, Madurai, Tamil Nadu, India
› Author Affiliations
Further Information

Publication History

Received: 17 January 2018

accepted after revision: 03 April 2018

Publication Date:
24 August 2018 (online)


Aim To measure the size of tentorial notch in Indian population, compare it with the western population from the literature available, and analyze the relation between size of tentorial notch and the outcome in patients with head injury.

Materials and Methods The study was done using 10 cadavers and 15 autopsy specimens. In all the specimens, tentorial incisura was measured using vernier caliper after opening the skull and cutting the midbrain at the level of tentorial edge carefully without damaging the tentorium. All measurements were done in millimeters.

Results Mean values, age-dependent mean values, and percentile values were calculated for various parameters in the tentorial incisura. Majority of the tentorial incisura are of typical type. Cases of tentorial incisura are significantly smaller in the age group of 20 to 25 years. Rate of deterioration of Glasgow coma scale (GCS) is rapid when the tentorial incisura is large.

Conclusion There were no significant variations in measurements of tentorial incisura in Indian population compared with the western population. Rate of deterioration of GCS is higher in patients who had large tentorial incisura compared with other groups, which is statistically significance. However, this is to be confirmed by further study using large groups of patients to be used for clinical applications.

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