Background: The Bicipital Groove (BG) is a concave area located between the lesser and larger tubercles of the proximal region of the humerus. The structure includes the biceps tendon, its synovial sheath, and the ascending branch of the anterior circumflex humeral artery. Understanding the morphometry of the shoulder area is crucial for comprehending its functional aspects. The study aimed to analyze the morphometric characteristics of the bicipital groove of the humerus in the population of North India.

Materials and Methods: This cross-sectional study was conducted on 100 mature adult humeri (50 right and 50 left) of unidentified gender.  The dimensions of the medial wall, lateral wall, width, and depth were measured using a vernier caliper. The parameters were precisely measured and the data were evaluated. Measurements were done with vernier caliper. The collected data was analyzed using the Statistical Package for Social Sciences (SPSS, version 24.0) software.

Results: The average length of the bicipital groove was 85.81 ± 5.79 mm on the right side and 87.96 ± 6.72 mm on the left side, with no significant differences between the two sides. The average width was 6.89 ± 1.07 mm on the right side and 7.91 ± 1.64 mm on the left side. The average depth was 4.27 ± 0.51 mm on the right side and 5.02 ± 0.91 mm on the left side. Both the width and depth showed significant differences between the right and left sides. For the medial and lateral walls of the bicipital groove, the average lengths on the right side were 24.16 ± 1.03 mm and 31.60 ± 2.16 mm, respectively, while on the left side, they were 23.56 ± 2.12 mm and 31.06 ± 0.22 mm. There were no significant differences in the lengths of the medial and lateral walls between the right and left sides.

Conclusion: This study evaluates the morphometry of the bicipital groove in the humeri of individuals from the north Indian population to enhance understanding of this anatomical feature. The data gathered will aid in planning orthopedic surgeries involving the upper arm bone, diagnosing tendon and structural issues related to the groove, and providing a reference for replacing the humeral head in upper-end fractures. This information is crucial for determining the appropriate prosthetic design, size, and placement, and will be valuable to anthropologists, radiologists, orthopedic surgeons, and clinical anatomists.