Multicentric morphometric study of dry human sacrum of Indian population in Gujarat Region.

ABSTRACT

Sacrum is a large triangular bone. It is formed by fusion of five sacral vertebrae and forms the caudal region of the vertebral column. It forms posterosuperior wall of the pelvic cavity wedged between the two hip bones. The present study is undertaken to test the validity of the parameters by which it may be possible to know detail morphometry of sacrum and sacral hiatus. The material for the present study consists of 150 adult sacrum of unknown sex. The measuring was done on intact parts of normal bones. Bones showing wear and tear, fracture or any pathology were not considered. Each linear recording was taken to the nearest millimeter. shape and length of the sacral hiatus, level of apex and anteroposterior depth at apex, level of base and transverse width at base were measured with the help of vernier calipers, recorded, tabulated and analyzed. Significant findings in the present study are high, 83 (55.33%) bones showed narrowed sacral canal at the apex (0-3mm), where as previous studies reported 15.6%. This should be kept in mind while applying caudal epidural anaesthesia in Gujarati population.