Histocompositional organization and toughening mechanisms in antler

Skedros, John G.; Keenan, Kendra E.; Cooper, David M.L.; Bloebaum, Roy D.

doi:10.1016/j.jsb.2014.06.004

Cited by 15 publications

(26 citation statements)

References 113 publications

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“…Some studies report humans as having an On.Cr that is on average lower than nonhuman species (Crescimanno and Stout, 2012;Tersigni et al, 2008;Tersigni-Tarrant et al, 2011); this study and other prior studies have reported greater human mean On.Cr values (Dominguez and Crowder, 2012;Skedros et al, 2014a). Some studies report humans as having an On.Cr that is on average lower than nonhuman species (Crescimanno and Stout, 2012;Tersigni et al, 2008;Tersigni-Tarrant et al, 2011); this study and other prior studies have reported greater human mean On.Cr values (Dominguez and Crowder, 2012;Skedros et al, 2014a).…”

Section: Discussionmentioning

confidence: 99%

“…Cr) when viewed in a 2D transverse section, can be mechanically adaptive in some bones where this is thought to enhance tissue mechanical toughness (Skedros et al, 2013a(Skedros et al, , 2014a. This could be an adaptation for the relatively diffusely distributed shear strains and obliquely oriented principal strains in bones that experience habitual torsion (e.g., sheep tibia, mid-shaft human femur, or other highcomplexity loaded bones or regions) or for these and other strain characteristics that are more localized in the vicinity of the neutral axis regions in bones subjected to relatively simple bending (Lanyon and Bourn, 1979;Martin and Burr, 1989;Petrt yl et al, 1996;Skedros, 2012;Skedros et al, 2007b,a;Sorenson et al, 2004;Su et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

“…We examined 5,000 total osteons of type I and II as described by Skedros et al (2007b) and Crescimanno and Stout (2012) across all species and bone types in this study. We did not use these selection criteria because they might bias our various analyses by eliminating osteons that should be selected in cases where variations of On.Cr and On.El are considered adaptations for differences in load history (Mears et al, 2014;Skedros et al, 2013aSkedros et al, , 2014a. These investigators eliminated osteons with noncircular canals [i.e., central (Haversian) canals of (Skedros et al, 1994(Skedros et al, , 2007b, which resemble those shown in Figure 3 of this study.…”

Section: Methodsmentioning

confidence: 97%

See 2 more Smart Citations

Utility of osteon circularity for determining species and interpreting load history in primates and nonprimates

Keenan¹,

Mears²,

Skedros

2017

American J Phys Anthropol

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 97%

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Utility of osteon circularity for determining species and interpreting load history in primates and nonprimates

Keenan¹,

Mears²,

Skedros

2017

American J Phys Anthropol

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“…It is somehow coupled with mechanisms that enhance its capacity to develop microdamage without fracture. Further studies revealed microcracking behaviour associated with microstructural features of the tissue (Skedros et al 2014). Krauss et al (2009) and Gupta et al (2013) hypothesise that the unique toughness of antler bone is primarily achieved by intrinsic/nanostructural mechanisms instead of extrinsic/microstructural mechanisms that dominate in human and bovine bone.…”

Section: General Anatomy and Histology Of Antlersmentioning

confidence: 99%

“…Results show multiple extrinsic-level histological characteristics in antler bone. However, it is still not defined whether there is a prominent mechanism versus another or if both are responsible of unique toughness of antler bone (Skedros et al 2014).…”

Section: General Anatomy and Histology Of Antlersmentioning

confidence: 99%

Organic and mechanical properties of Cervidae antlers: a review

Picavet

Balligand

2016

Vet Res Commun

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There is a resurgence of interest in the study of deer antlers. Recent research advocates their potential for use in bone xenografts. Using this working hypothesis, we can formulate many questions: do antlers really present unique or interesting mechanical properties, and if so, which factors affect these properties? Many other issues, including tissue compatibility, could be discussed; however, this article will focus on the biomechanical features of antlers. This paper reviews some answers found within current published material, and could help determine the optimal selection of some antlers for further experimental studies and clinical trials. Some general elements like anatomy and histology of deer antlers are briefly summarised. This paper will attempt to define the fundamental differences between skeletal bone and antler bone in terms of their organic and mechanical properties. We will then compare the previously published data, which details the mechanical properties of antlers from different species of Cervidae, by reviewing several aspects such as: sex; geographical situation; morphology; hydration state; and mineral composition. Some findings emerge: mechanical properties do not vary with gender or latitude, and the most important determining factor appears to be the species, alongside morphology and use of antlers. The state of hydration and mineral composition also has an influence on the mechanical properties of Cervidae antlers.

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A foundational description of Antilocapra americana pronghorn core osteohistology

Slenker,

Woodward,

O'Brien

2024

The Anatomical Record

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Cranial bony projections (“headgear”) have diverse forms and functions, such as defense, species recognition, mate selection, and thermoregulation. Most commonly, they are associated with the artiodactyl infraorder, Pecora. All pecoran headgear—antlers, horns, ossicones, and pronghorns—are osseous protrusions of the frontal or parietal bone with an integumentary covering, although there is taxonomic, developmental, and compositional variation. However, compared with other pecorans, there is a dearth of literature addressing extant antilocaprids—Antilocapra americana. This study provides a foundational osteohistological description of A. americana pronghorn cores in order to start building a framework to better understand the complex interplay among microanatomy, development, behavior, environment, and phylogenetic history of pronghorn headgear. Osteohistological analysis of adult A. americana pronghorn cores reveal the inner medullary region is composed of trabecular bone. Based on similar studies in bovids, we propose that these trabeculae may function to reduce the effects of repeated loading incurred by intraspecific combat. The deep aspect of the outer region was found to be composed of compacted coarse cancellous bone and primary bone remodeled to dense Haversian bone, in both male and female specimens, respectively, and superficially composed of highly vascularized fibrolamellar bone. The presence of fibrolamellar bone may indicate that the bone is fast‐growing, and its presence at the periosteal surface suggests protracted growth of the pronghorn core beyond sexual maturity.

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Histocompositional organization and toughening mechanisms in antler

Cited by 15 publications

References 113 publications

Utility of osteon circularity for determining species and interpreting load history in primates and nonprimates

Utility of osteon circularity for determining species and interpreting load history in primates and nonprimates

Organic and mechanical properties of Cervidae antlers: a review

A foundational description of Antilocapra americana pronghorn core osteohistology

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