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Al Rassy N, Matta J, Frenn F, Maalouf G, Rizkallah M, Bachour F, Sebaaly A, Hardouin P, Chauveau C, El Hage R. Bone Geometric Properties of the Femoral Neck in Underweight Eumenorrheic Women. J Clin Densitom 2019; 22:272-278. [PMID: 29056312 DOI: 10.1016/j.jocd.2017.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 09/01/2017] [Accepted: 09/07/2017] [Indexed: 11/27/2022]
Abstract
The aim of this study was to describe femoral neck (FN) geometry among eumenorrheic underweight women around the age of peak bone mass. Proximal femur geometry and body composition were assessed in 12 underweight women and in 24 healthy controls using dual-energy X-ray absorptiometry. The Hip Structural Analysis program was used to determine bone geometry at the FN. The cross-sectional area (CSA) and the cross-sectional moment of inertia (CSMI) were significantly lower in underweight women than in controls (p < 0.05). There was a trend toward lower sectional modulus (Z) and strength index in underweight women (p < 0.15). Body weight, body mass index, and lean mass (LM) were positively correlated with CSA, CSMI, Z, and neck-shaft angle (r = 0.428-0.611, p < 0.05). After controlling for body weight, body mass index, and LM, the differences in CSA, CSMI, Z, and neck-shaft angle were no more statistically significant between the 2 groups. The multivariate analysis retained LM as the main predictor of CSA, CSMI, and Z in the whole population. The present study suggests that thinness is associated with low resistance to axial forces (CSA) and bending load (Z and CSMI) in adult eumenorrheic women. LM seems to be a key determinant of FN geometry in underweight women.
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Affiliation(s)
- Nathalie Al Rassy
- Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon; Laboratory of Pathophysiology of Inflammatory Bone Diseases PMOI EA4490, University of Littoral Opal Coast ULCO, Boulogne sur Mer and University of Lille, Lille, France
| | - Joseph Matta
- Industrial Research Institute, Baabda, Lebanon; Department of Nutrition, Faculty of Pharmacy, Saint Joseph University, Mansourieh, Lebanon
| | | | - Ghassan Maalouf
- Bellevue University Medical Center, Faculty of Medicine, Saint Joseph University, Mansourieh, Lebanon
| | - Maroun Rizkallah
- Bellevue University Medical Center, Faculty of Medicine, Saint Joseph University, Mansourieh, Lebanon
| | - Falah Bachour
- Bellevue University Medical Center, Faculty of Medicine, Saint Joseph University, Mansourieh, Lebanon
| | - Amer Sebaaly
- Bellevue University Medical Center, Faculty of Medicine, Saint Joseph University, Mansourieh, Lebanon
| | - Pierre Hardouin
- Laboratory of Pathophysiology of Inflammatory Bone Diseases PMOI EA4490, University of Littoral Opal Coast ULCO, Boulogne sur Mer and University of Lille, Lille, France
| | - Christophe Chauveau
- Laboratory of Pathophysiology of Inflammatory Bone Diseases PMOI EA4490, University of Littoral Opal Coast ULCO, Boulogne sur Mer and University of Lille, Lille, France
| | - Rawad El Hage
- Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon.
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