Morphometric Study of Bicipital Groove in Dry Adult Human Cadaveric Humerus in Indian Population

Introduction: An important anatomical feature on the ventral surface of the proximal section of the humerus is the “bicipital groove” (BG). Understanding the functional importance of the shoulder area requires a thorough understanding of the morphometric research of the bicipital groove. It is regarded as a significant turning point for humeral head replacement and shoulder prosthesis. The current study aims to investigate the bicipital groove’s morphometry and show how variations in its parameters affect the way the surrounding structures operate. Objectives: Primary objective is to determine various morphometric parameters of bicipital groove and to calculate the medial and lateral angles of the dry humerus’s bicipital groove. We also evaluate the anthropometric differences between intertubercular sulcus of the right side and the left side of humerus. Materials and Methods: The study was carried out at the Anatomy Department of TMMC and RC, TMU, Moradabad, and was descriptive in nature. Forty-one dried adult cadaveric humerus bones (19 Rt. Humerus, 22 Lt. Humerus) were used in the study. The bicipital groove’s breadth and length as well as the medial and lateral wall angles were measured. It was noted that Meyers Ridge was present. A suitable test for statistics was used. Results: The biciptal groove measured 78.35 ± 4.5 mm on the right side and 78.21 ± 7.2 mm on the left. The calculated width of the same was 9.13 ± 1.1 mm on the left and 10.11 ± 1.2 mm on the right. The bicipital groove measured in this study has a depth of 5.39 ± 1.0 mm on the right side and 5.30 ± 1.0 mm on the left. The median wall angle of the right humerus measured 46.58 ± 6.5, whereas the left humerus measured 47 ± 5.8. The bicipital groove measurements for the right and left sides were 48.89 ± 5.8 and 49 ± 4.7, respectively, in terms of their lateral wall angles. The frequency of Meyer’s supratubercular ridge on the right side of the humerus was determined to be 15.8%. Conclusion: The differences in the morphometry of the bicipital groove have been verified by this investigation. In the Indian population, these grooves were found to be slightly deeper and wider. Anatomists, orthopedic surgeons, and others who fabricate prosthesis based on native Indian bone measurements would greatly benefit from the data collected.