{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T08:06:51Z","timestamp":1774253211036,"version":"3.50.1"},"reference-count":41,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T00:00:00Z","timestamp":1774224000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T00:00:00Z","timestamp":1774224000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["anatomypubs.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["The Anatomical Record"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Advanced maternal age pregnancies are associated with a higher rate of cesarean sections (c\u2010sections). As surgical procedures, c\u2010sections increase the risk of maternal morbidity and mortality. Some have suggested that the increase in c\u2010sections with maternal age reflects an age\u2010related increase in feto\u2010pelvic inadequacy. Here we evaluated whether maternal pelvic remodeling with respect to age and parity explains the increase in c\u2010sections with age. We examined CT scans of recently deceased American individuals from the New Mexico Decedent Image Database (\n                    <jats:italic>N<\/jats:italic>\n                    \u2009=\u2009299). The sample was subdivided for sex (male, female), age (15\u201334\u2009years, 35\u201350\u2009years, \u226551\u2009years), and parity (parous, nulliparous). We took four obstetrically relevant measurements: anteroposterior (AP) inlet, AP outlet, mediolateral (ML) inlet, and ML midplane. Statistical analyses included the Welch Test to compare the age groups and the Wilcoxon\u2010Mann\u2013Whitney test to compare parity groups. Our results revealed that the only significant age\u2010related differences were for the two mediolateral pelvic canal measurements in females, where individuals \u226551\u2009years old (likely post\u2010menopausal) had wider pelvic canals than the younger individuals, including those who would be considered advanced maternal age (\u226535\u2009years). The only parity\u2010related difference was in the AP outlet, which was wider in parous individuals. There were no significant age\u2010related differences in the male sample. We conclude that age\u2010related pelvic remodeling is unlikely to be the reason for the higher incidence of c\u2010sections in advanced maternal age individuals. Why the female pelvic canal expands mediolaterally post\u2010menopause and anteroposteriorly after childbirth both require further exploration.\n                  <\/jats:p>","DOI":"10.1002\/ar.70182","type":"journal-article","created":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T07:27:07Z","timestamp":1774250827000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Skeletal remodeling of the pelvis and the obstetric risks of advanced maternal age"],"prefix":"10.1002","author":[{"given":"Alisha","family":"Relan","sequence":"first","affiliation":[{"name":"Kirksville College of Osteopathic Medicine A.T. Still University  Kirksville Missouri USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paige","family":"DeRemer\u2010Young","sequence":"additional","affiliation":[{"name":"Kirksville College of Osteopathic Medicine A.T. Still University  Kirksville Missouri USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6180-2803","authenticated-orcid":false,"given":"Natalie","family":"Laudicina","sequence":"additional","affiliation":[{"name":"Biomedical Sciences Grand Valley State University  Allendale Michigan USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5338-2346","authenticated-orcid":false,"given":"Caroline","family":"VanSickle","sequence":"additional","affiliation":[{"name":"Department of Anatomy Des Moines University  West Des Moines Iowa USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2026,3,23]]},"reference":[{"key":"e_1_2_10_2_1","unstructured":"3D slicer image computing platform. 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