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Case reports have raised questions about an increased risk of connective tissue diseases (CTDs) among women with breast implants. From the reviews of more than 2,600 manuscripts, abstracts, and dissertations, this meta-analysis included 13 epidemiology studies that provided a relative risk (RR) estimate for the possible association between breast implants and CTDs. The meta-analysis summary RR was 0.76 for CTD in general (95% confidence interval CI: 0.55, 1.04; homogeneity p-value = 0.073) and was 0.98 for scleroderma (95% CI: 0.57, 1.64; homogeneity p = 0.006). Irrespective of which studies were aggregated in this meta-analysis, there was no significant increased risk for scleroderma, rheumatoid arthritis, or CTD in general. Conclusions from this study are consistent with the most recent review by the British Medical Devices Agency that found no scientific evidence to date of an increased risk of CTD associated with silicone gel breast implants.
Perkins et al. (Fri,) studied this question.