Study of Supratrochlear Foramen of Humerus in South Indian Population

Background: Supratrochlear foramen (STF) is located on the bony septum that usually separates the coronoid and olecranon fossa at the lower end of humerus. Materials and Methods: The present study was conducted on 100 humerii (50 left, 50 right) of unknown sex collected from the Department of Anatomy, J. J. M. Medical College, Davangere. The presence of STF was noted, the transverse and vertical diameters of STF was measured by using digital vernier caliper. Results: The STF was observed in 28 % of humerii. The incidence was more common on left side (34 %) as compared to right side (22 %). The shape of STF was oval and round, among which oval shape was found to be maximum. The mean transverse and vertical diameter of STF was 3.020.96 mm and 2.110.82 mm respectively. Conclusion: The knowledge of STF is important for orthopedic surgeons and radiologists in treating and interpreting the pathology in this area in their day to day clinical practice.