4.4 Article

A comparison of clinical outcomes of acellular dermal matrix with and without radiation sterilization process in immediate prepectoral direct-to-implant breast reconstruction

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ELSEVIER SCI LTD
DOI: 10.1016/j.bjps.2023.10.087

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Acellular dermal matrix; Sterilization process; Breast reconstruction; Surgical outcome

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This study compared the clinical outcomes of acellular dermal matrix (ADM) products that had undergone radiation sterilization with those that had not. The results showed no significant differences in overall rates of complications between the two groups, but the salvage rate from infection was higher in the group without sterilization.
Background: Although there are many acellular dermal matrix (ADM) products, the sterilization process varies for each product. We compared the clinical outcomes of immediate prepectoral direct-to-implant (DTI) breast reconstruction with and without sterilization products.Methods: This was a retrospective study of immediate prepectoral DTI breast reconstructions performed between 2018 and 2020. We classified patients depending on whether the used ADM products had undergone radiation sterilization and compared the patient demographics and surgical outcomes, including seroma, infection, mastectomy flap necrosis, capsular contracture, and implant failure.Results: The study included 357 patients, 182 in the no-sterilization group and 179 in the sterilization group. The ADM size differed significantly between the no-sterilization and sterilization groups (122.7 cm2 vs. 145.4 cm2 , respectively, P = 0.01). There were no significant differences in overall rates of complications between the two groups, including seroma (P = 0.28), infection (P = 0.63), mastectomy flap necrosis (P = 0.76), and capsular contracture (P = 0.76). However, implant failure from infection (0% vs. 3.4%, P = 0.01) and drainage amount (690.3 mL vs. 779.36 mL, P = 0.04) with similar removal days were significantly higher in the sterilization group. Conclusion: The authors demonstrated similar complication rates for seroma, infection, mastectomy flap necrosis, and capsular contracture. Whereas a bigger size of ADM was needed to cover a similar implant volume, and drain amount was higher in the sterilization group, the salvage rate from infection was higher in the no-sterilization group with a significant difference.(c) 2023 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.

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