Sexual dimorphism of the pelvic girdle from 3D images of a living Spanish sample from Castilla-La Mancha

Crespo, C.; Rissech, Carme; Thomas, Richard M.; Juan, A. Amat; Appleby, Jo; Turbón, Daniel

doi:10.1016/j.jchb.2015.01.001

Cited by 7 publications

(7 citation statements)

References 31 publications

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“…precision) of the virtual model serves as a basis for the inclusion and exclusion criteria of CT scans for setting up a virtual skeletal database. Also, this knowledge may facilitate an increase in research using 3D models from patient-derived CT scans for the development of forensic anthropological methods [31–35]. …”

Section: Introductionmentioning

confidence: 99%

The geometrical precision of virtual bone models derived from clinical computed tomography data for forensic anthropology

et al. 2017

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Almost all European countries lack contemporary skeletal collections for the development and validation of forensic anthropological methods. Furthermore, legal, ethical and practical considerations hinder the development of skeletal collections. A virtual skeletal database derived from clinical computed tomography (CT) scans provides a potential solution. However, clinical CT scans are typically generated with varying settings. This study investigates the effects of image segmentation and varying imaging conditions on the precision of virtual modelled pelves. An adult human cadaver was scanned using varying imaging conditions, such as scanner type and standard patient scanning protocol, slice thickness and exposure level. The pelvis was segmented from the various CT images resulting in virtually modelled pelves. The precision of the virtual modelling was determined per polygon mesh point. The fraction of mesh points resulting in point-to-point distance variations of 2 mm or less (95% confidence interval (CI)) was reported. Colour mapping was used to visualise modelling variability. At almost all (>97%) locations across the pelvis, the point-to-point distance variation is less than 2 mm (CI = 95%). In >91% of the locations, the point-to-point distance variation was less than 1 mm (CI = 95%). This indicates that the geometric variability of the virtual pelvis as a result of segmentation and imaging conditions rarely exceeds the generally accepted linear error of 2 mm. Colour mapping shows that areas with large variability are predominantly joint surfaces. Therefore, results indicate that segmented bone elements from patient-derived CT scans are a sufficiently precise source for creating a virtual skeletal database.Electronic supplementary materialThe online version of this article (doi:10.1007/s00414-017-1548-z) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

The geometrical precision of virtual bone models derived from clinical computed tomography data for forensic anthropology

et al. 2017

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“…Moreover, the need for studies on skeletal development based on different populations becomes more important when we take into account their broad relevance in biological anthropology and human evolution. The study of changes in size increase, shape and form of different skeletal elements in different populations during growth can help to elucidate, for example, how patterns of bone growth have changed in recent generations of children and how selective forces influence the development of sexual dimorphism in the different anatomical regions of the skeleton (Bulygina et al, ; Coquerelle et al, ; Crespo et al, ).…”

mentioning

confidence: 99%

“…In light of this background, there is an obvious need for studies regarding the developmental osteology of individuals from contemporary populations, as has been recommended by different authors (Martrille et al, ; Cameriere and Ferrante, ; Boccone et al, ; Charisi et al, ; López‐Costas et al, ; Rissech et al, ; San Millán et al, ) and demonstrated in several studies (Formicola, ; Formicola and Franceschi, ; Lalueza‐Fox, ; Bulygina et al, ; Rissech et al, ; Crespo et al, ).…”

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confidence: 99%

Ontogeny of the male femur: Geometric morphometric analysis applied to a contemporary Spanish population

Pujol

Rissech

Ventura

et al. 2015

American J Phys Anthropol

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“…Dymorfizm płciowy w budowie miednic jest faktem niepodważalnym [1][2][3]. Staw biodrowy per se także cechuje się pewnym zróżnicowaniem płcio wym, choć wiedza na ten temat wymaga wciąż dowodów naukowych.…”

Section: Wstępunclassified

“…Sexual dimorphism of acetabular anatomy is undis putable [1][2][3]. The hip joint itself also displays certain sex-specific characteristics, although the details still need scientific evidence.…”

Section: Introductionmentioning

confidence: 99%

Sexual Dimorphism of Acetabular Anatomy Based on Three-dimensional Computed Tomography Images of Pelvises

Musielak

Rychlik

Jóźwiak

2016

Ortop Traumatol Rehabil

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STRESZCZENIEWstęp. Prezentowane badanie ma na celu porównanie różnic płciowych w budowie i w przestrzennym ustawieniu panewek miednicy, w celu lepszego zrozumienia anatomii stawu biodrowego.Materiał i metody. Badanie wykonano w oparciu o trójwymiarowe rekonstrukcje tomografii komputerowych 50 panewek żeńskich oraz 50 panewek męskich. Na ich podstawie wykonano analizę przestrzenną panewek stawu biodrowego w stosunku do podstawy kości krzyżowej, jako płaszczyzny referencyjnej. W oparciu o analizę statystyczną, porównywano wartości kątowe parametrów opisujących rzeczywistą oś panewki (kąt inklinacji, kąt antewersji, kąt pochylenia) oraz objętość i powierzchnię wewnętrzną panewki stawu biodrowego.Wyniki. Zarówno kąt inklinacji, jak i kąt pochylenia panewki nie różniły się istotnie pomiędzy porównywanymi grupami i wyniosły odpowiednio: 68,61° i 26,53° w panewkach kobiecych oraz 70,56° i 30,19° w męskich (p>0,05). Kąt antewersji był istotnie większy w przypadku panewek żeńskich i wyniosł 38,27°, gdy w męskich -32,05° (p=0,0008), natomiast ich objętość i powierzchnia były istotnie mniejsze u kobiet (odpowiednio p=0,0007 i 0,0001).Wnioski. 1. Ustawienie panewki stawu biodrowego różni się w zależności od płci -panewki żeńskie zorientowane są bardziej ku przodowi niż męskie. 2. Objętość oraz powierzchnia wewnętrzna panewki także się różnią -są mniejsze u kobiet. 3. Niezależnie od wykorzystanej płaszczyzny odniesienia, dymorfizm płciowy panewki stawu biodrowego jest stały. 4. Znajomość powyższych różnic płciowych jest niezbędna dla planowania przedoperacyjnego w zabiegach ortopedycznych (jak w przypadku alloplastyki stawu biodrowego czy leczenia operacyjnego FAI).Słowa kluczowe panewka stawu biodrowego, orientacja przestrzenna panewki, rekonstrukcje trójwymiarowe, inżynieria odwrotna, różnice płciowe SUMMARY Background. The study aimed to compare sex differences in the morphology and spatial orientation of pelvic acetabula to advance the understanding of hip anatomy.Material and methods. The study was based on three-dimensional reconstructions of computed tomography images of 50 female and 50 male acetabula. The images were used for spatial analysis of hip acetabula relative to the base of the sacral bone as the plane of reference. Statistical analysis was performed to compare angles relevant to the actual axis of the acetabulum (inclination angle, anteversion angle, tilt angle) as well as the volume and inner surface area of the acetabulum.Results. Both the inclination and tilt angles of the acetabulum did not differ significantly between the groups, the respective values being: 68. 61° and 26.53° in females and 70.56° and 30.19° in males (p>0.05). The anteversion angle was significantly larger for female acetabula (38.27° compared to 32.05° in men, with p=0.0008), while the volume and the inner surface area were significantly smaller in women (p=0.0007 and 0.0001 respectively).Conclusions. 1. Acetabular orientation is sex-specific, with female acetabula being more forward-oriented than those of men. 2. The volume and inn...

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Sexual dimorphism of the pelvic girdle from 3D images of a living Spanish sample from Castilla-La Mancha

Cited by 7 publications

References 31 publications

The geometrical precision of virtual bone models derived from clinical computed tomography data for forensic anthropology

The geometrical precision of virtual bone models derived from clinical computed tomography data for forensic anthropology

Ontogeny of the male femur: Geometric morphometric analysis applied to a contemporary Spanish population

Sexual Dimorphism of Acetabular Anatomy Based on Three-dimensional Computed Tomography Images of Pelvises

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