ROLE OF SUBPUBIC ANGLE IN SEXUAL DIMORPHISM &amp; ITS CLINICAL IMPORTANCE: A MORPHOMETRIC STUDY IN ADULT HUMAN BONY PELVIS

Sachdeva, Kanika; Singla, Rajan Kumar; Kalsey, Gurdeep

doi:10.16965/ijar.2016.430

Cited by 6 publications

(9 citation statements)

References 10 publications

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“…The findings of the present study are comparable with that of Kayastha P, et al (SPA of male= 104.72±10.47°, SPA of female= 137.15±11.92°), who also attempted to determine the SPA using digital pelvic radiographs in the Nepalese population as in our study. 16 On the other hand, the SPA was considerable lower in other studies; 59.05±7.11° in males and 75.60±9.81° in females in a morphometric study performed on 40 adult dry articulated pelvis 1 and 68.6±7.6° in males and 87.4±6.5° in females in a study done in reconstructed threedimensional computed tomography pelvic model in a Malaysian population. 3 Discrepancies in SPA made by our study in comparison with other studies may be due to variation in the modalities adopted in measuring SPA and different ethnic groups.…”

Section: Iscussionmentioning

confidence: 70%

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Mean Subpubic Angle of Patients Visiting Department of Radiodiagnosis of a Tertiary Care Hospital: A Descriptive Cross-sectional Study

Pandit

Adhikari

Upadhyay³

2022

J Nepal Med Assoc

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Introduction: The subpubic angle in the pelvis is most often used to estimate the sex with a higher degree of accuracy. Despite the anthropological and obstetric importance of the subpubic angle, only a few studies exist in the Nepalese population. The objective of this study was to determine the mean subpubic angle of the patient visiting the department of radiodiagnosis of tertiary care hospital. Methods: This was a descriptive cross-sectional study comprising 332 pelvic digital radiographs of the patients visiting the department of radiodiagnosis of a tertiary care center from March to August, 2021. Ethical approval was taken from the Institutional Review Committee at College of Medical Sciences (Reference number: COMSTH-IRC/2021-62). Convenience sampling method was done. Demographic data like age and sex were noted. In the radiograph, the subpubic angle was measured using the program Digimizer Image Analysis Software. The collected data were analysed using the Statistical Package for the Social Sciences version 20. Point estimate at 95% Confidence Interval was calculated along with mean and standard deviation for continuous data. Results: Among 332 pelvic radiographs studied, the mean subpubic angle was found to be 120.42±22.27° (118.02-122.81 at 95% Confidence Interval). The subpubic angle in females was 137.96±12.47° and that in males was 101.10±12.56°. Conclusions: Our findings are similar to those of other studies, with a minor variation. The subpubic angle was comparatively higher in females than males in the present study. The findings of this study may be of interest to forensic scientists and obstetricians.

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Section: Iscussionmentioning

confidence: 70%

“…Similar findings were observed in several other studies. 1,15,16 The subpubic concavity does not fully develop in females until they reach the age of 20 years. 8 As a result, there is no sexual dimorphism in the preadolescent pelvis.…”

Section: Iscussionmentioning

confidence: 99%

Mean Subpubic Angle of Patients Visiting Department of Radiodiagnosis of a Tertiary Care Hospital: A Descriptive Cross-sectional Study

Pandit

Adhikari

Upadhyay³

2022

J Nepal Med Assoc

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“…However, SPA in male and female were also lower in the study done by Kanika Sachdeva et al in the Indian population (59.05°± 7.11° and 75.60° ± 9.81° respectively) as compared to our study finding. 3 Thus, another reason for this variation could be due to different modalities used to measure the angle -plain radiographs, CT, projection images and even bony pelvis. We used plain radiographs of the pelvis or KUB radiograph for the measurement of SPA in our study.…”

Section: Discussionmentioning

confidence: 99%

“…Subpubic angle (SPA), referred to as pubic arch, is the angle that exists between the inferior rami and below the pubic symphysis in an articulated bony pelvis. 3 Subpubic angle of the female is significantly larger than that of the male. It is V-shaped in males and U-shaped in the female.…”

Section: Introductionmentioning

confidence: 95%

Measurement of Subpubic Angle in Radiograph

et al. 2020

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Introduction: Subpubic angle, an important parameter used for sex determination in the pelvis, is the angle between two inferior pubic rami below the symphysis pubis. This study was carried out to determine the subpubic angle among the individuals referred for pelvic and KUB radiographs in the department of Radiology and Imaging, Tribhuvan University, Teaching Hospital.Methods: Prospective cross-sectional study was done on 120 individuals. The subpubic angle was measured by drawing two tangent lines on the inferior border of the pubic rami. The subpubic angle of both sexes was measured. An independent sample t-test for equality of means was used to determine the difference between the two sexes regarding the subpubic angle. The correlation between the subpubic angle and the age of subjects was obtained using Pearson Correlation Coefficients in males and females.Results: The range of the subpubic angle in male was 82o to 122° and the mean was 104.72°±10.47°. In females, the range was 96o to 159° and the mean was 137.15°±11.92° with a significant statistical difference from the angle in male (p<0.05). The subpubic angle was not significantly correlated with age in males (r=0.029, p=0.824) whereas, in females, the correlation of subpubic angle with age was significant (r=-0.303, p=0.019).Conclusion: The mean subpubic angle was significantly wider in females than in males in this study. We found a weak negative correlation between subpubic angle and age in females whereas in the male there was no correlation between age and subpubic angle.

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“…It seems that authors have inferred that there are sex-based differences in the IR angle based on literature showing that the subpubic angle is larger in females than males. 13,14 Studies of sexual dimorphism suggest that bone deposition and resorption along the ischiopubic ramus and ischium differs in adolescent females and results in a wider subpubic angle compared to males. [13][14][15] However, we were unable to find any evidence to suggest that these mechanisms influence the morphology of the medial ischium or ischial ramus which may explain why there is no sexual dimorphism in the IR angle.…”

Section: Discussionmentioning

confidence: 99%

Prediction of ischial ramal angle for transfemoral ischial containment sockets

Quigley

Dillon

Fernandez

et al. 2019

Prosthetics &Amp; Orthotics International

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The regression models explained a small proportion of variance in ischial ramus angle. The average error associated with the prediction was too large to accurately predict the ischial ramus angle for use in clinical practice. Contrary to commonly held beliefs, there was no statistically significant difference in ischial ramus angle between sexes. Clinical relevance Prediction of ischial ramus angle does not have sufficient accuracy to be clinically useful, but descriptive data may help clinicians identify casting errors and correct these in a plaster positive, knowing that the average ischial ramus angle was 32.65°±5.59° (relative to mid-sagittal plane) and does not vary between sexes.

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ROLE OF SUBPUBIC ANGLE IN SEXUAL DIMORPHISM & ITS CLINICAL IMPORTANCE: A MORPHOMETRIC STUDY IN ADULT HUMAN BONY PELVIS

Cited by 6 publications

References 10 publications

Mean Subpubic Angle of Patients Visiting Department of Radiodiagnosis of a Tertiary Care Hospital: A Descriptive Cross-sectional Study

Mean Subpubic Angle of Patients Visiting Department of Radiodiagnosis of a Tertiary Care Hospital: A Descriptive Cross-sectional Study

Measurement of Subpubic Angle in Radiograph

Prediction of ischial ramal angle for transfemoral ischial containment sockets

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