Le bassin, interface articulaire entre rachis et membres inférieurs : analyse par le logiciel DE-VISU

Tardieu, Christine; Hecquet, J.; Barrau, Anne; Loridon, Philippe; Boulay, C.; Legaye, Jean; Carlier, Robert; Marty, C.; Duval-Beaupère, G

doi:10.1016/j.crpv.2005.12.015

Cited by 15 publications

(17 citation statements)

References 30 publications

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“…288‐1. Tardieu et al () measured the pelvic incidence of these specimens using Schmid's () reconstruction for A.L. 288‐1 and Häusler and Schmid's () for Sts 14.…”

Section: Methodsmentioning

confidence: 99%

Brief Communication: Lumbar lordosis in extinct hominins: Implications of the pelvic incidence

Been

Gómez‐Olivencia

Kramer

2014

American J Phys Anthropol

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Recently, interest has peaked regarding the posture of extinct hominins. Here, we present a new method of reconstructing lordosis angles of extinct hominin specimens based on pelvic morphology, more specifically the orientation of the sacrum in relation to the acetabulum (pelvic incidence). Two regression models based on the correlation between pelvic incidence and lordosis angle in living hominoids have been developed. The mean values of the calculated lordosis angles based on these models are 36°-45° for australopithecines, 45°-47° for Homo erectus, 27°-34° for the Neandertals and the Sima de los Huesos hominins, and 49°-51° for fossil H. sapiens. The newly calculated lordosis values are consistent with previously published values of extinct hominins (Been et al.: Am J Phys Anthropol 147 (2012) 64-77). If the mean values of the present nonhuman hominoids are representative of the pelvic and lumbar morphology of the last common ancestor between humans and nonhuman hominoids, then both pelvic incidence and lordosis angle dramatically increased during hominin evolution from 27° ± 5 to 22° ± 3 (respectively) in nonhuman hominoids to 54° ± 10 and 51° ± 11 in modern humans. This change to a more human-like configuration appeared early in the hominin evolution as the pelvis and spines of both australopithecines and H. erectus show a higher pelvic incidence and lordosis angle than nonhuman hominoids. The Sima de los Huesos hominins and Neandertals show a derived configuration with a low pelvic incidence and lordosis angle.

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“…288‐1. Tardieu et al () measured the pelvic incidence of these specimens using Schmid's () reconstruction for A.L. 288‐1 and Häusler and Schmid's () for Sts 14.…”

Section: Methodsmentioning

confidence: 99%

Brief Communication: Lumbar lordosis in extinct hominins: Implications of the pelvic incidence

Been

Gómez‐Olivencia

Kramer

2014

American J Phys Anthropol

View full text Add to dashboard Cite

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“…The homologous landmarks (Table 2 and Fig. 2) correspond to landmarks classically used in the literature (Weidenreich,1913; Rickenmann,1957; Zuckerman et al,1973; McHenry,1978; Steudel,1981; Berge et al,1984; Berge,1996,1998; Bouhallier et al,2004; Boulay et al,2006a; Tardieu et al,2006).…”

Section: Methodsmentioning

confidence: 93%

“…3B). This parameter is defined as the angle between the line perpendicular to the superior articular plane of the first sacral vertebra at its center and the line connecting this point to the middle of the interacetabular distance (distance between the centers of the two acetabula) (Duval‐Beaupère et al,1992; Legaye et al,1993,1998; Duval‐Beaupère and Legaye,2004; Tardieu,2006; Boulay et al,2006b). This angle was computed based on the outline of the superior articular plane of the first sacral vertebra and the outlines acquired along the edge of the right and left facies lunata .…”

Section: Methodsmentioning

confidence: 99%

Technical note: Shape variability induced by reassembly of human pelvic bones

Bonneau

Bouhallier

Simonis

et al. 2012

American J Phys Anthropol

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In traditional as well as in geometric morphometric studies, the shape of the pelvis is often quantified after the reassembly of the two hip bones and the sacrum. However, on dry bones, the morphology of the cartilaginous tissues that form the two sacroiliac joints and the pubic symphysis before death remains unknown, leading to potential inaccuracies and errors during the reassembly process. A protocol was established to investigate the effects of reassembly on the quantification of pelvis shape. The shape of fresh pelves obtained after dissection, in which the three bones are in an anatomically relevant position, was compared with the shape of different reassemblies based on the individual dry bones of the same individuals. Our results demonstrated a significant effect of the reassembly. Variation in the reassembly process is likely related, first, to the complete absence of cartilaginous tissues on dry bones and, second, to the morphology of the sacroiliac joint which, in vivo, allows physiological movements, resulting in different potential positions of the two sacroiliac surfaces relative to one another. However, the artificial variation introduced by the reassembly process appears small compared with the biological variation between the different individuals.

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“…I called this acetabular parameter, including its degree of anteversion, inclination, and sphericity of the acetabula, the ''functional link'' between the pelvis and lower limbs. 86 While the anteversion of the femoral neck decreases during growth, we showed that the anteversion of the acetabula decreases. For mechanical reasons, their relationships are antagonist during learning to walk.…”

Section: Toward An Integrative Analysismentioning

confidence: 90%

“…The formation of the directional axes of the lower limbs during growth that we have described depends, on one hand, on the reaction forces coming from the ground during gait acquisition but, on the other hand, on the downward forces coming from the pelvis through the acetabula, with the three-dimensional orientation of the acetabula being the critical parameter. The variability of this parameter in humans [86][87][88][89] probably plays a role in determination of the axes of the lower limbs we have described here. I called this acetabular parameter, including its degree of anteversion, inclination, and sphericity of the acetabula, the ''functional link'' between the pelvis and lower limbs.…”

Section: Toward An Integrative Analysismentioning

confidence: 99%

Le bassin, interface articulaire entre rachis et membres inférieurs : analyse par le logiciel DE-VISU

Cited by 15 publications

References 30 publications

Brief Communication: Lumbar lordosis in extinct hominins: Implications of the pelvic incidence

Brief Communication: Lumbar lordosis in extinct hominins: Implications of the pelvic incidence

Technical note: Shape variability induced by reassembly of human pelvic bones

Development of the human hind limb and its importance for the evolution of bipedalism

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