ISSN 1308-8734 | E-ISSN 1308-8742
Original Article
Hip Structural Changes and Fracture Risk in Osteopenia and Osteoporosis
1 Department of Physical Medicine and Rehabilitation, Medeniyet University Goztepe Training and Research Hospital, Istanbul, Turkey  
2 Department of Nuclear Medicine, Faculty of Medicine, Bezmialem Vakıf University, Istanbul, Turkey  
3 Department of Orthopedy and Tarumatology, Okmeydanı Education and Research Hospital, Şişli, Istanbul, Turkey  
4 Department of Physical Therapy and Rehabilitation, Faculty of Medicine, Bezmialem Vakıf University, Istanbul, Turkey  
Eurasian J Med 2011; 43: 73-78
DOI: 10.5152/eajm.2011.17
Key Words: Spatial distribution of bone tissue is a useful determinant of fracture risk


Objective: Although bone mineral density (BMD) is an important predictor of hip fracture, there is a large overlap of BMD values between those who fracture their hips and those who do not. The aim of this study was to evaluate differences in the structural parameters of the hip in patients with osteopenia and osteoporosis in the hip region and to assess their relationship with osteoporotic fracture risk, age and gender.

Materials and Methods: In this observational retrospective study, 150 patients with osteopenia (100 postmenopausal women and 50 men ≥ 50 years of age) and 125 patients with osteoporosis in the hip (100 postmenopaussal women and 25 men ≥ 50 years of age) were included. In addition to densitometry measurements by DEXA (Dual Energy X-ray Absorbimetry), structural variables were determined using the Hip Strength Analysis program (HSA). 

Results: In logistic regression analyses, the femoral neck BMD (odds ratio (OR), 2.6; 95% Confidence Interval (CI) 1.8-3.8), age (OR per 10 years 1.4; 95% CI, 1.1-1.9), femoral neck shaft angle (NSA) (OR 1.5; 95% CI, 1.2-2.1), Femur Strength Index (FSI) (OR 1.6; 95% CI 1.3-2.2), and Cross sectional area (CSA) (OR 1.6; 95% CI 1.2-2.1) were all associated with osteoporotic fractures in women and men. Osteopenic patients had smaller femoral neck-shaft angles (NSA) compared to osteoporotic patients (p<0.05). This angle was larger in women (p<0.05); and women had decreased (FSI) (p<0.001) and CSA (p<0.05), which cause increased fracture risk.

Conclusion: Spatial distribution of bone tissue is a useful determinant of fracture risk. 

Key Words
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