Italian to English Medical Medical (general)

Plastica di fistula peristomale post-operatoria

Part of a discharge report under the patient's history:

10/10/12 intervento di laringectomia totale + collo bilaterale radicale modificato con esito di carcinoma squamoso G3 infiltrante lo scudo tiroideo e I tessuti molli perilaringei
16/11/2012 plastica di fistula peristomale post-operatoria

I know this is referring to a surgical procedure on the fistula but I am not sure on the correct wording? Maybe Revision surgery on postoperative peristomal fistula?

Thank you