Does methylene blue increases capsular contracture in immediate breast reconstruction with silicone implant? An experimental study.

Does methylene blue increases capsular contracture in immediate breast reconstruction with silicone implant? An experimental study. J Plast Surg Hand Surg. 2020 Oct 08;:1-10 Authors: Albayati A, Ozkan B, Atilgan AO, Sencelikel T, Uysal CA, Ertas NM Abstract Recently, most of the immediate breast reconstructions following mastectomy are being carried out with the use of silicone implants. In these patients, methylene blue is being used for the detection of sentinel lymph nodes. This experimental study was performed to determine the effect of methylene blue on capsular contracture around breast implants. Thirty-two Sprague Dawley rats were divided into 4 groups. Custom made silicone blocks were placed on the back of animals. In group 1, the incision was closed without performing any additional procedure. In group 2 (control), 0.1 mL of 0.9% normal saline was instilled into the pocket. Group 3 and 4 (study groups) received 0.1 and 0.2 mL of 1% methylene blue, respectively. On postoperative day 60, implants and capsular tissue were extracted. Capsule formation was evaluated both macroscopically and microscopically. The histological evaluation included capsule thickness, inflammation, neovascularization, and fibrosis gradients. Regarding capsule thickness, there were statistically significant differences between groups 1-3, 1-4, 2-3, and 2-4. Although there were more moderate and severe inflammation gradients in groups III and IV, the...
Source: Journal of Plastic Surgery and Hand Surgery - Category: Surgery Tags: J Plast Surg Hand Surg Source Type: research