A study on anterior clinoid process and optic strut with emphasis on variations of caroticoclinoid foramen.

This study presents the incidence of carotico-clinoid foramen, dimensions of the anterior clinoid process and optic strut in dry skulls to provide a guide to neurosurgeons in surgical approach especially to anterior part of cavernous sinus. Thirty-five dry skulls were used. Basal width, length, thickness of anterior clinoid process and thickness of optic strut was measured. Morphology of carotico-clinoid foramen was also studied. The average length, basal width and thickness of the anterior clinoid process on right side were 10.74 +/- 2.37 mm, 10.83 +/- 1.20 mm, 5.13 +/- 1.03 mm and left side were 9.91 +/- 1.50 mm, 11.0 +/- 1.12, 5.33 +/- 0.96 mm. Average thickness of optic strut was 3.79 +/- 0.88 mm on right side and 3.61 +/- 0.78 mm on left side. Out of 70 sides in thirty five skulls examined, carotico-clinoid foramen was observed in 14 (20.0%) cases. Out of which complete foramen was in 3 (right side, 4.3%), partial in 8 (6 right, 2 left, 11.4%) and contact in 3 (left side, 4.3%) respectively. Comparison with other races and differences between right and left sides were also discussed. The present study was done to obtain dimensions of anterior clinoid, optic strut, their anatomical variants and incidence of caroticoclinoid foramen in location population. This study will help the surgeons to plan their approach to this area and thus will make the surgical procedure safer

Renal dimensions in Nepalese population: a preliminary study.

Kidney dimensions have been measured in various parts of the world ultrasonographically and morphometrically though never in Nepal. Prior knowledge of kidney dimensions in Nepalese population would be of immense help to ultrasonologists planning to scan kidney. Forty normal-appearing formalin-preserved adult kidneys of unknown age and sex were measured using a sliding caliper for maximum length, width and thickness. Weight of kidney was measured by a "micro" weighing balance. Student's t test was applied for statistical significance. Right kidney was 85.25 +/- 10.7mm. long, 50.65 +/- 5.8mm. wide and 34.6 +/- 5.1 mm. thick. Left kidney was 91.65 +/- 9.2mm. long, 53.65 +/- 5.2mm. wide and 38.5 +/- 4.1 mm. thick. Weight of right kidney was 84.16 +/- 28.4 gm. and left kidney was 111.1 +/- 28.9 gm. Kidneys of Nepalese population were shorter and lighter than people living in other parts of the world. Difference between length, thickness and weight of left and right kidney was statistically significant but difference in width was not. Variation from other population is racial. Difference in left and right kidney dimensions is reported in various earlier literatures; therefore, Nepalese population is no exception.