Trabecular bone patterning in the hominoid distal femur

PeerJ
Leoni GeorgiouMatthew M Skinner

Abstract

In addition to external bone shape and cortical bone thickness and distribution, the distribution and orientation of internal trabecular bone across individuals and species has yielded important functional information on how bone adapts in response to load. In particular, trabecular bone analysis has played a key role in studies of human and nonhuman primate locomotion and has shown that species with different locomotor repertoires display distinct trabecular architecture in various regions of the skeleton. In this study, we analyse trabecular structure throughout the distal femur of extant hominoids and test for differences due to locomotor loading regime. Micro-computed tomography scans of Homo sapiens (n = 11), Pan troglodytes (n = 18), Gorilla gorilla (n = 14) and Pongo sp. (n = 7) were used to investigate trabecular structure throughout the distal epiphysis of the femur. We predicted that bone volume fraction (BV/TV) in the medial and lateral condyles in Homo would be distally concentrated and more anisotropic due to a habitual extended knee posture at the point of peak ground reaction force during bipedal locomotion, whereas great apes would show more posteriorly concentrated BV/TV and greater isotropy due to a flexed kne...Continue Reading

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Citations

May 18, 2019·Journal of Anatomy·Christopher J DunmoreMatthew M Skinner
Dec 15, 2018·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Simone SukhdeoTimothy M Ryan
Feb 23, 2019·Journal of Anatomy·Leoni GeorgiouMatthew M Skinner
May 5, 2021·Journal of Anatomy·Emma E BirdMatthew M Skinner
Sep 28, 2021·Evolution; International Journal of Organic Evolution·Julia Arias-MartorellTracy L Kivell

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