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  • Title: A meta-analysis of fracture risk and bone mineral density in patients with systemic sclerosis.
    Author: Chen J, Lei L, Pan J, Zhao C.
    Journal: Clin Rheumatol; 2020 Apr; 39(4):1181-1189. PubMed ID: 31838641.
    Abstract:
    INTRODUCTION: Osteoporosis and fractures are important public health issues that impose serious burdens on patients. Patients with systemic sclerosis (SSc) have low bone mineral density (BMD) and increased risk for fracture. We aimed to explore the association between SSc and BMD and fracture risk. METHODS: For this meta-analysis, we analyzed data from articles that reported mean differences in BMD or fracture risk between patients with SSc and controls. We undertook a systematic literature search of the PubMed, Web of Science, and Cochrane Library databases. The pooled weighted mean difference (WMD) was used to estimate the mean difference in BMD between patients with SSc and controls. Pooled odds ratios (ORs; with 95% confidence intervals [95% CIs]) were used to assess the association between SSc and fracture risk. RESULTS: Analysis of the results from 18 studies showed that patients with SSc had significantly lower BMD than controls in the following categories: whole body (WMD - 0.07, 95% CI - 0.1 to - 0.04, p < 0.00001), lumbar spine (WMD - 0.08, 95% CI - 0.11 to - 0.05, p < 0.00001), femoral neck (WMD: -0.28, 95% CI: -0.46 to -0.10, p=0.002), total hip (WMD - 0.10, 95% CI - 0.14 to - 0.06, p < 0.00001), and femoral trochanter (WMD - 0.06, 95% CI - 0.09 to - 0.03, p < 0.0001). Moreover, patients with SSc had an increased risk of vertebral fracture (OR 10.38, 95% CI 1.19 to 90.58, p = 0.03). We did not find a significant difference in the risk of osteoporotic fracture between patients with SSc and controls (OR = 2.24, 95% CI 0.58 to 8.59, p = 0.24). CONCLUSION: Patients with SSc have a significant reduction in bone mass, and these patients have an increased risk of vertebral fracture. The early monitoring of BMD in patients with SSc is recommended for the prevention of osteoporosis and fracture.Key points• SSc patients have a significant low BMD• SSc patients also have an increased risk of vertebral fracture.
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