Development of human hip joint in the second and the third trimester of pregnancy; a cadaveric study

The purpose of the study was an evaluation of fetal hip joint morphology during the second and the third trimester of pregnancy. Serial sections were performed on 23 cadaver infants. The mean lunar age was 6.6 months. Femoral shaft length (FSL) and width of the proximal and distal epiphysis were x-r...

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Bibliographic Details
Published in:BMC developmental biology 2013-05, Vol.13 (1), p.19-19, Article 19
Main Authors: Masłoń, Adrian, Sibiński, Marcin, Topol, Mirosław, Krajewski, Karol, Grzegorzewski, Andrzej
Format: Article
Language:English
Subjects:
Age
Analysis
Bioethics
Cadaver
Computers
Consent
Female
Fetus
Fetuses
Growth
Health aspects
Hip joint
Hip Joint - embryology
Humans
Medical research
Motorboat engines
Pregnancy
Pregnancy Trimester, Second
Pregnancy Trimester, Third
Pregnant women
Statistical analysis
Studies
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Summary:The purpose of the study was an evaluation of fetal hip joint morphology during the second and the third trimester of pregnancy. Serial sections were performed on 23 cadaver infants. The mean lunar age was 6.6 months. Femoral shaft length (FSL) and width of the proximal and distal epiphysis were x-rayed to determine fetal age. The neck shaft angle (NSA), the femoral antetorsion angle (FAA), the acetabulum anteversion angle (AAA) and the acetabulum slope angle (ASA) were measured. Hip development ratios were plotted for all cadaveric species and revealed: flat FSL/NSA slope pattern, upward FSL/FAA slope pattern and downward slope pattern for FSL/ASA and FSL/AAA ratios. The changes, observed during the developmental period, were not statistically significant. NSA did not change during the second or the third pregnancy trimester. FAA increased during pregnancy but the changes were not statistically significant. AA, as well as ASA, showed a decreasing trend during the second and the third pregnancy trimester, however, with no correlations to age. Despite an increasing depth and growing dimensions of the acetabulum in the uterus, its orientation does not change in any significant way.
ISSN:1471-213X
1471-213X
DOI:10.1186/1471-213X-13-19