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J Obstet Gynaecol Res. 2017 Jun;43(6):1067-1070. doi: 10.1111/jog.13313. Epub 2017 Apr 19.

Bilateral femoral neck fractures resulting from pregnancy-associated osteoporosis showed bone marrow edema on magnetic resonance imaging.

Author information

1
Department of Obstetrics and Gynecology, Saiseikai Shiga Hospital, Ritto, Shiga, Japan.
2
Department of Obstetrics and Gynecology, Shiga University of Medical Science, Otsu, Shiga, Japan.
3
Department of Orthopedic Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan.
4
Department of Orthopedic Surgery, Saiseikai Shiga Hospital, Ritto, Shiga, Japan.

Abstract

Femoral neck fractures resulting from pregnancy-associated osteoporosis is a rare condition. Herein, we report an undoubted case of pregnancy-associated osteoporosis in a 38-year-old primiparous patient with pre-existing anorexia nervosa who suffered bilateral femoral neck fractures in the third trimester and early post-partum period. Magnetic resonance imaging revealed femoral neck fractures as well as diffuse marrow edema involving both femoral heads, which are considered under ordinary circumstances as characteristic imaging findings of transient osteoporosis of the hip. Based on our experience, we propose that pregnancy-associated osteoporosis might be present in femoral neck fractures attributed to transient osteoporosis of the hip in pregnancy. Conversely, bone status should be carefully and accurately estimated in cases of potential transient osteoporosis of the hip in pregnancy to reduce future fracture risk.

KEYWORDS:

anorexia nervosa; bone marrow edema; femoral neck fracture; osteoporosis; pregnancy

PMID:
28422356
PMCID:
PMC5485008
DOI:
10.1111/jog.13313
[Indexed for MEDLINE]
Free PMC Article

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