The incidence of capsular contracture after breast augmentation with the different prostheses
We read the recent published paper in this journal of Gland Surgery by Zhai and colleagues entitled “A systematic review and meta-analysis of capsular contracture rate after breast augmentation with textured and smooth breast prostheses” (1). They performed a meta-analysis to assess the contracture rates after breast augmentation with textured and smooth breast prostheses. We appreciate Zhai et al. for the valuable study, however, after a careful learning of the literature, several limitations should be noticed.
First, in the sensitivity analysis section of the study, the authors depicted that the Calobrace et al.’ study (2) was a source of the heterogeneity showed in Fig. 3. However, after carefully reviewing Fig. 3, we found that the pooled estimate of the remaining studies was still among the range of the 95% confident interval (CI) (Fig. 3), and we believe that Calobrace et al.’ study being a source of the heterogeneity could not be demonstrated.
Second, in the subgroup analysis section of this article, the authors mentioned that a random-effects model was chosen for analysis (odds ratio =0.24; 95% CI: 0.10, 0.61; P=0.03) because of the similarity of the baseline and clinical homogeneity between the 2 groups. However, we believed the depiction above was unreasonable. Actually, a random-effects model was used to combine the relevant study results, because the I2 value was >50%.
Acknowledgments
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References
- Zhai P, Wu Y, Yang D, et al. A systematic review and meta-analysis of capsular contracture rate after breast augmentation with textured and smooth breast prostheses. Gland Surg 2022;11:166-74. [Crossref] [PubMed]
- Calobrace MB, Stevens WG, Capizzi PJ, et al. Risk Factor Analysis for Capsular Contracture: A 10-Year Sientra Study Using Round, Smooth, and Textured Implants for Breast Augmentation. Plast Reconstr Surg 2018;141:20S-28S. [Crossref] [PubMed]
