The subpubic angle in sex determination: Anthropometric measurements and analyses on Anatolian Caucasians using multidetector computed tomography datasets

Karakaş, Mustafa Serkan; Harma, Ahmet; Alıcıoğlu, Banu

doi:10.1016/j.jflm.2013.08.013

Cited by 32 publications

(49 citation statements)

References 29 publications

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“…Sex determination from skeletal bones is very important for forensic science and anthropology (1)(2)(3).The pelvis and skull are the most commonly used bones for this purpose (1,(3)(4)(5)(6). The highest number of bones with the most determinative features for sex differentiation are those of the pelvis (7)(8)(9).…”

Section: Introductionmentioning

confidence: 99%

“…Although sex determination is mostly performed based on pelvic bones, many different anatomical structures could also be used, examples of which are the subpubic angle, sciatic notch, acetabulum and the shape of foramen obturatum (FO) (2,4).The subpubic angle and sciatic notch in the female pelvis are wider than those in the male pelvis (1,2,5,8). Acetabulum is smaller in women and bigger in men.…”

Section: Introductionmentioning

confidence: 99%

“…The shape of FO is large and oval in males but smaller and nearly triangular in females (10). All these evaluations for sex determination could be undertaken by morphological or metric methods (2,4,8,9,(11)(12)(13). The morphological method is based entirely on visual evaluation (2,13).…”

Section: Introductionmentioning

confidence: 99%

“…All these evaluations for sex determination could be undertaken by morphological or metric methods (2,4,8,9,(11)(12)(13). The morphological method is based entirely on visual evaluation (2,13). It allows rapid evaluation but requires an experienced practitioner (8,12) and interobserver agreement is highly variable (2,4,8,12,13).…”

Section: Introductionmentioning

confidence: 99%

“…The morphological method is based entirely on visual evaluation (2,13). It allows rapid evaluation but requires an experienced practitioner (8,12) and interobserver agreement is highly variable (2,4,8,12,13). Furthermore, since statistical analysis is not possible, this type of evaluation is considered to be subjective (4).…”

Section: Introductionmentioning

confidence: 99%

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Use of Foramen Obturatum and Subpubic Angle in Sex Determination: Diagnostic Accuracy of Anthropometric Measurement on MDCT Images

Gündoğdu

Kebapçı

2019

Iran J Radiol

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Background: Sex determination from skeletal bones is very important, especially for forensic science and anthropology. Radiological techniques are commonly used for this purpose. Objectives: This study aimed to evaluate the accuracy rate of the subpubic angle and width-length ratio of foramen obturatum (FO) in sex determination and determine the cutoff values for differentiation between genders. Patients and Methods: Three-dimensional (3D) volume-rendered images were obtained from the pelvic CT scans of 100 patients (50 female, 50 male). The subpubic angle was automatically measured on these images using image analysis software. The maximum width and height of FO were recorded and their ratio were calculated. Results: The subpubic angle was between 75.9 and 101.2 in females (mean: 82.92 ± 15.06) and, 47.4 and 91.5 in males (mean: 67.91 ± 9.15). The accuracy rate of the subpubic angle in determining sex was 96%. For the best cutoff value of 79.45 on the subpubic angle, the parameters for sex determination were as follows: sensitivity 84%, specificity 74%, positive predictive value (PPV) 76%, and negative predictive value (NPV) 82%. The aspect ratio of FO was 0.48-0.74 (mean: 0.60 ± 0.039) for the right side and 0.48-0.72 (mean: 0.60 ± 0.054) for the left side in females, and 0.45-0.68 (mean: 0.55 ± 0.058) for the right side and 0.45-0.69 (mean: 0.54 ± 0.052) for the left side in males. For the best cutoff value of 0.615 on the right side, the parameters for sex determination were as follows: sensitivity 84%, specificity 74%, PPV 76%, and NPV 82%. The accuracy rate of the right-side FO in sex determination was 79%. For the best cutoff value of 0.635 on the left side, the parameters for sex determination were as follows: sensitivity 98%, specificity 32%, PPV 59%, and NPV 94%. The accuracy rate of the left-side FO in sex determination was 65%. Conclusions: The subpubic angle and aspect ratio of foramen obturatum parameters have high accuracy in determining sex.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Use of Foramen Obturatum and Subpubic Angle in Sex Determination: Diagnostic Accuracy of Anthropometric Measurement on MDCT Images

Gündoğdu

Kebapçı

2019

Iran J Radiol

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Shape morphing technique can accurately predict pelvic bone landmarks

et al. 2021

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Diffeomorphic shape registration allows for the seamless geometric alignment of shapes. In this study, we demonstrated the use of a registration algorithm to automatically seed anthropological landmarks on the CT images of the pelvis. We found a high correlation between manually and automatically seeded landmarks. The registration algorithm makes it possible to achieve a high degree of automation with the potential to reduce operator errors in the seeding of anthropological landmarks. The results of this study represent a promising step forward in effectively defining the anthropological measures of the human skeleton.

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Application of DSP2 for biological sex estimation in a Spanish sample: analysis based on sex and side

San-Millán,

Warrier,

Carrera

et al. 2024

Int J Legal Med

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Applying existing sexing methodologies to different populations, and reporting these findings is important to enhance their applicability and accuracy in real cases across the world. DSP was published in 2005 (Murail et al., 2005) and updated as a DSP2 in 2017 (Brůžek et al., 2017) based on a database of 10 pelvic measurements from 2040 individuals worldwide. These tools have been applied subsequently to various populations, however, its applicability to a dry Spanish population is lacking. 303 hipbones belonging to 157 individuals from the School of Legal Medicine from the University Complutense of Madrid (Spain), of which 140 individuals were documented, were analyzed to investigate the reliability, applicability and accuracy of the DSP2 sex estimation methodology, examining side and sex-based potential differences for the first time. In most of the DSP variables, intra-rater reliability showed excellent results and % applicability was higher than 85.0%. Overall % accuracy was higher than 94.0% regardless of the number or discriminant power of the utilized DSP variables. However, % sexing decreased when less variables or less discriminant ones were used for estimations, reaching 45.51% (left) and 43.31% (right). Regarding sexual dimorphism, females’ results of % applicability, % sexing and % accuracy were higher compared to males. In addition, left os coxae achieved better outcomes (aforementioned percentages) in most of the cases in the sex-pooled sample. Decreasing the mandatory posterior probability by 10% yielded an increase in the % sexing but reduced % accuracy, and thus, does not seem to enhance the approach’s performance. The present study validates the applicability and reliability of DSP for sexing a Spanish population. Future investigations will attempt to assess its applicability within virtual anthropology.

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The subpubic angle in sex determination: Anthropometric measurements and analyses on Anatolian Caucasians using multidetector computed tomography datasets

Cited by 32 publications

References 29 publications

Use of Foramen Obturatum and Subpubic Angle in Sex Determination: Diagnostic Accuracy of Anthropometric Measurement on MDCT Images

Use of Foramen Obturatum and Subpubic Angle in Sex Determination: Diagnostic Accuracy of Anthropometric Measurement on MDCT Images

Shape morphing technique can accurately predict pelvic bone landmarks

Application of DSP2 for biological sex estimation in a Spanish sample: analysis based on sex and side

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