Osteoporos Sarcopenia.
2024 Mar;10(1):16-21. 10.1016/j.afos.2024.01.003.
Assessing the utility of osteoporosis self-assessment tool for Asians in patients undergoing hip surgery
- Affiliations
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- 1Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, Japan
- 2Department of Orthopaedics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, Japan
- 3Department of Orthopaedics, National Hospital Organization Osaka National Hospital, 2-1-14, Hoenzaka, Chuou-ku, Osaka, Osaka, Japan
- 4Department of Orthopaedics, Japan Community Health Care Organization Hoshigaoka Medical Center, 4-8-1, Hoshigaoka, Hirakata, Osaka, Japan
- 5Department of Orthopaedics, Kansai Medical Hospital, 1-1-7-2, Shinsenri-nishi, Toyonaka, Osaka, Japan
- 6Department of Orthopaedics, Bell Land General Hospital, 500-3, Higashiyama, Naka-ku, Saka, Osaka, Japan
- 7Department of Orthopaedics, Yamaguchi University Graduate School of Medicine, 1-1-1, Minami-kogushi, Ube, Yamaguchi, Japan
- 8Department of Orthopaedics, Kansai Rosai Hospital, 3-1-69, Inabaso, Amagasaki, Hyogo, Japan
- KMID: 2554455
- DOI: http://doi.org/10.1016/j.afos.2024.01.003
Abstract
Objectives
Diagnosis and treatment of osteoporosis are instrumental in obtaining good outcomes of hip surgery. Measuring bone mineral density (BMD) using dual-energy X-ray absorptiometry (DXA) is the gold standard for diagnosing osteoporosis. However, due to limited access to DXA, there is a need for a screening tool to identify patients at a higher risk of osteoporosis. We analyzed the potential utility of the Osteoporosis Self-assessment Tool for Asians (OSTA) as a screening tool for osteoporosis.
Methods
A total of 1378 female patients who underwent hip surgery at 8 institutions were analyzed. For each patient, the BMD of the proximal femoral region was measured by DXA (DXA-BMD), and the correlation with OSTA score (as a continuous variable) was assessed. Receiver operating characteristic (ROC) curve analysis was performed to assess the ability of OSTA score to predict osteoporosis. Lastly, the OSTA score was truncated to yield an integer (OSTA index) to clarify the percentage of patients with osteoporosis for each index.
Results
DXA-BMD showed a strong correlation with OSTA (r = 0.683; P < 0.001). On ROC curve analysis, the optimal OSTA score cut-off value of − 5.4 was associated with 73.8% sensitivity and 80.9% specificity for diagnosis of osteoporosis (area under the curve: 0.842). A decrease in the OSTA index by 1 unit was associated with a 7.3% increase in the probability of osteoporosis.
Conclusions
OSTA is a potentially useful tool for screening osteoporosis in patients undergoing hip surgery. Our findings may help identify high-risk patients who require further investigation using DXA.
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