Applied and Clinical Anatomy of Sacrum
Rajani Singh *
Department of Anatomy, UP University of Medical Sciences, Saifai Etawah, 206130, UP, India.
*Author to whom correspondence should be addressed.
Abstract
The sacrum is a triangular bone formed by the fusion of five sacral vertebrae. It forms the postero-superior part of the bony pelvis. Sacrum is subjected to various disorders like dysmorphism, fractures and tumours. To manage different types of disorders related to sacrum, S1 and S2 pedicle screws, Sacro-iliac screws, iliac screws, S2 AIar screws and instrumentation are very often used. But the sacrum is related to various viscera, blood vessels and nerves. To avoid injury to structures in the pelvis and to prevent intra- and post-operative complications, detailed knowledge of the normal and varied anatomy of the sacrum is essential. The aim of this chapter is to elaborate on the normal and applied anatomy of the sacrum. The information will be of utmost use to clinicians while dealing with the sacrum and its disorders.
Keywords: Sacrum, instrumentation, applied anatomy