Anatomical and clinical perspectives on the distal humeral fossae: A study in South Indian dry bones

Background: The distal end of the humerus features three fossae—radial, coronoid, and olecranon—that accommodate the processes of the forearm bones during elbow movements. Variations in their morphology and morphometry can influence joint biomechanics, fracture fixation, and prosthesis design. Howev...

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Main Authors: Nandini Prashanth Bhat, Ashwija Shetty, Kurian Alapatt, Nom Kumar Naik Bhukya, Sushma Prabhath, Suhani Sumalatha
Format: Article
Language:English
Published: Elsevier 2025-09-01
Series:Translational Research in Anatomy
Online Access:http://www.sciencedirect.com/science/article/pii/S2214854X25000482
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author Nandini Prashanth Bhat
Ashwija Shetty
Kurian Alapatt
Nom Kumar Naik Bhukya
Sushma Prabhath
Suhani Sumalatha
author_facet Nandini Prashanth Bhat
Ashwija Shetty
Kurian Alapatt
Nom Kumar Naik Bhukya
Sushma Prabhath
Suhani Sumalatha
author_sort Nandini Prashanth Bhat
collection DOAJ
description Background: The distal end of the humerus features three fossae—radial, coronoid, and olecranon—that accommodate the processes of the forearm bones during elbow movements. Variations in their morphology and morphometry can influence joint biomechanics, fracture fixation, and prosthesis design. However, comprehensive data on all three fossae in South Indian dry humeri remain limited. This study aims to fill this gap by providing clinically relevant morphometric insights. Methodology: A total of 120 adult dry humeri (60 right, 60 left) of unknown age and sex were analyzed. Standardized photographs were evaluated using ImageJ software. Sixteen parameters—including the length, width, and circumference of each fossa—were measured. Data were analyzed using descriptive statistics, Pearson's correlation, and t-tests. Results: The left humerus was significantly longer (mean difference 1.96 cm) and had a greater distal width (mean difference 0.58 cm) than the right. The coronoid fossa was longer (mean difference 0.13 cm) and had a greater circumference on the right (mean difference 0.23 cm), while the radial and olecranon fossae were larger on left. Morphological analysis identified five olecranon fossa types, with oval being most common (44 %). The coronoid and radial fossae were predominantly triangular. No significant correlation was observed between humeral length or width and fossa circumference. The supratrochlear foramen, an anatomical variation which was found in 28.3 % of bones. Conclusion: These findings have important implications for orthopedic surgery, such as intramedullary fixations, prosthetic design for elbow reconstruction, and forensic anthropology.
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spelling doaj-art-620296bbff4c4a81bd080912b9a8ebe22025-08-21T04:17:01ZengElsevierTranslational Research in Anatomy2214-854X2025-09-014010042910.1016/j.tria.2025.100429Anatomical and clinical perspectives on the distal humeral fossae: A study in South Indian dry bonesNandini Prashanth Bhat0Ashwija Shetty1Kurian Alapatt2Nom Kumar Naik Bhukya3Sushma Prabhath4Suhani Sumalatha5Department of Anatomy, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, IndiaDepartment of Anatomy, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, IndiaDepartment of Orthopedics, Jubilee Mission Medical College, Thrissur, Kerala, IndiaDepartment of Anatomy, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, IndiaDepartment of Anatomy, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, IndiaDepartment of Anatomy, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India; Corresponding author. Department of Anatomy, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.Background: The distal end of the humerus features three fossae—radial, coronoid, and olecranon—that accommodate the processes of the forearm bones during elbow movements. Variations in their morphology and morphometry can influence joint biomechanics, fracture fixation, and prosthesis design. However, comprehensive data on all three fossae in South Indian dry humeri remain limited. This study aims to fill this gap by providing clinically relevant morphometric insights. Methodology: A total of 120 adult dry humeri (60 right, 60 left) of unknown age and sex were analyzed. Standardized photographs were evaluated using ImageJ software. Sixteen parameters—including the length, width, and circumference of each fossa—were measured. Data were analyzed using descriptive statistics, Pearson's correlation, and t-tests. Results: The left humerus was significantly longer (mean difference 1.96 cm) and had a greater distal width (mean difference 0.58 cm) than the right. The coronoid fossa was longer (mean difference 0.13 cm) and had a greater circumference on the right (mean difference 0.23 cm), while the radial and olecranon fossae were larger on left. Morphological analysis identified five olecranon fossa types, with oval being most common (44 %). The coronoid and radial fossae were predominantly triangular. No significant correlation was observed between humeral length or width and fossa circumference. The supratrochlear foramen, an anatomical variation which was found in 28.3 % of bones. Conclusion: These findings have important implications for orthopedic surgery, such as intramedullary fixations, prosthetic design for elbow reconstruction, and forensic anthropology.http://www.sciencedirect.com/science/article/pii/S2214854X25000482
spellingShingle Nandini Prashanth Bhat
Ashwija Shetty
Kurian Alapatt
Nom Kumar Naik Bhukya
Sushma Prabhath
Suhani Sumalatha
Anatomical and clinical perspectives on the distal humeral fossae: A study in South Indian dry bones
Translational Research in Anatomy
title Anatomical and clinical perspectives on the distal humeral fossae: A study in South Indian dry bones
title_full Anatomical and clinical perspectives on the distal humeral fossae: A study in South Indian dry bones
title_fullStr Anatomical and clinical perspectives on the distal humeral fossae: A study in South Indian dry bones
title_full_unstemmed Anatomical and clinical perspectives on the distal humeral fossae: A study in South Indian dry bones
title_short Anatomical and clinical perspectives on the distal humeral fossae: A study in South Indian dry bones
title_sort anatomical and clinical perspectives on the distal humeral fossae a study in south indian dry bones
url http://www.sciencedirect.com/science/article/pii/S2214854X25000482
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