Three-Dimensional Morphometric and Mechanical Analysis of the Rabbit Humerus Using CT-Based Methods

Authors : Firuze Türker Yavaş, Figen Sevil Kilimci

Pages : 65-72

Doi:10.53913/aduveterinary.1819078

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Publication Date : 2025-12-25

Article Type : Research Paper

Abstract :Three-dimensional morphometric and biomechanical assessment of the rabbit humerus was performed using computed tomography (CT)-based 3D reconstruction and quantitative image analysis. The study aimed to determine morphometric and mechanical data of the humerus and to evaluate the influence of sex and side. The mean humerus lengths were measured as 68.05 mm in females and 57.14 mm in males, showing a statistically significant difference (P = 0.000), whereas no significant side-related difference was observed (P = 0.091). The distribution of the cross-sectional area (CSA) indicated that the largest CSA values occurred between 7.5–22.0% of the bone length in females and between 3–30% in males, while the smallest CSA values were located in the distal third (43–100%). The (CSA/Length) × 100 index showed no significant sex difference (P > 0.05). Males exhibited significantly higher maximum diameter, perimeter, and maximum moment of inertia values than females (P < 0.05), whereas right humeri demonstrated greater Imax values compared with the left (P < 0.05). These findings indicate that the morphometric and mechanical data of the rabbit humerus are influenced mainly by sex and, to a lesser extent, by laterality. The mid-diaphyseal region (3–30%) showed the highest mechanical competence, supporting its relevance for biomechanical and orthopaedic applications.
Keywords : Tavşan humerusu, 3D Slicer, Segment Geometry Modülü, Üç Nokta Eğme Testi, Morfometri

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