Morphometry by computerized three-dimensional reconstruction of the human carpal bones during embryogenesis

Durand, Sébastien; Delmas, V.; Tho, M.C. Ho Ba; Batchvarova, Z.; Uhl, Jean-François; Oberlin, C.

doi:10.1007/s00276-006-0108-x

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…After completing all contours and saving them in a file, the surfacing process connects the vertices and slices identified for the final 3D object. See [ 23 ] for full details on this sample.…”

Section: Methodsmentioning

confidence: 99%

Three-Dimensional Comparative Study of Human Bipartite Scaphoids and the Os Centrale of the Wrist in Neandertals and Non-Human Anthropoid Primates

et al. 2021

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In humans, bipartite scaphoid still does not differentiate clearly from traumatic non-union of the scaphoid. To aid diagnosis, we sought to analyze the main geometrical similarities among bipartite scaphoids from primate species with fused and unfused scaphoid centrales. Four human embryos, four cases of adult humans with bipartite scaphoid, twelve adult specimens of other extant anthropoid primates, and two Neandertal scaphoid specimens were included in this study. Three-dimensional polygon models of the scaphoid and os centrale were generated from CT scan, micro-CT scan, or histological sections. A 3D comparative study of the morphological and morphometrical parameters was performed using the MSC Patran software. The os centrale was smaller than the scaphoid in all specimens and its shape was elongated in the anteroposterior scaphoid direction. The position of the os centrale centroid compared to the scaphoid using direction vectors had a strong orientation along the proximodistal axis in all species. The main morphological feature of bipartite scaphoid was the continuity of the scaphoid from its proximal pole to its tubercule along the anteroposterior axis. In all specimens, if the os centrale was removed, the scaphoid still appeared normal and whole. The bipartite scaphoid in adult humans shares geometrical analogies with monkeys and orangutans, human embryos, and Neandertals. Morphological and morphometrical features identified in this study are useful to differentiate bipartite scaphoid from scaphoid pseudarthrosis. All other criteria suggested in the past lead to misdiagnosis.

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Section: Methodsmentioning

confidence: 99%

Three-Dimensional Comparative Study of Human Bipartite Scaphoids and the Os Centrale of the Wrist in Neandertals and Non-Human Anthropoid Primates

et al. 2021

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“…When the partners are from very different biological origins, there is no reason why they should grow at the same pace, and this must be resolved. This topic of non‐homothetic growth – quite fashionable in economy (Martinez‐Zarzoso and Vollmer, ) and well recognized in embryology (Durand et al ., ) – could be of considerable interest for the study of communities of organisms, not only involved in symbiotic relationships, but also simply commensals or mutualists. In general we can expect to witness a revival of the old topic of allometry (West and Brown, ), derived from the development of quantitative biology research.…”

Section: New Concepts In Symbiosis and Evolutionmentioning

confidence: 99%

Conceptual sequel to biological expeditions at the time of global changes

Danchin

2018

Environ Microbiol Rep

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Morphogenesis of the human palma arch using three‐dimensional geometric modeling

Durand¹,

Marin²,

Oberlin³

et al. 2011

Clinical Anatomy

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The hand goes through complex morphological modifications during embryogenesis. The goal of this study was to use geometric modeling to study the morphometric modifications of the palmar arch. Five embryos were used for the study (sizes: 15, 17, 23, 30, and 44 mm). After digitalization of histologic sections (Sony DXC-930P 3CCD camera, Leica Qwin) and segmentation of the metacarpal cartilaginous matrices (Winsurf 4.3 software), geometric modeling and calculations were performed using MSC.Patran 2005r2 software. Correlations (r > 0.99) were found between embryo size and metacarpal volume, metacarpal surface, and the surface of the modeled palmar arch. The growth of the palmar arch is nonhomothetic. Significant reduction (P = 0.05) in the divergence of the 2nd, 3rd, 4th, and 5th metacarpals was observed. Deepening of the palmar arch is correlated with embryo size and age (r > 0.99). Geometric modeling allows 3D rendering of histologic sections and thus quantitative description of the morphogenesis. The results of this study support the hypothesis that opposition of the thumb in correlation with deepening of the palmar arch appears early in embryological development. It constitutes a specific morphological characteristic that appears very early in the human phylum. The fact that the human thumb is naturally in opposition in the resting position is a consequence of this morphogenesis. The thumb's resting position has received little attention in clinical settings and should be considered as the reference position for biomechanical analysis of the thumb column.

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Morphometry by computerized three-dimensional reconstruction of the human carpal bones during embryogenesis

Cited by 5 publications

References 10 publications

Three-Dimensional Comparative Study of Human Bipartite Scaphoids and the Os Centrale of the Wrist in Neandertals and Non-Human Anthropoid Primates

Three-Dimensional Comparative Study of Human Bipartite Scaphoids and the Os Centrale of the Wrist in Neandertals and Non-Human Anthropoid Primates

Conceptual sequel to biological expeditions at the time of global changes

Morphogenesis of the human palma arch using three‐dimensional geometric modeling

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