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Gracilis muscle flap interposition can be considered when the fistula is complex, repeatedly recurrent, or combined with radiation damage or significant tissue defects. Whether a protective stoma is needed depends on the degree of contamination, sphincter function, underlying diseases, and individua
24-72h
Response window
Approx. $5,800
Treatment fee
Peking Union Medical College Hospital - Beijing - Grade 3A
Ruijin Hospital - Shanghai - Grade 3A
West China Hospital - Chengdu - Grade 3A
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This procedure is often used for complex or recurrent fistulas. Typically, the gracilis muscle is dissected from the inner thigh under anesthesia, maintaining its blood supply, and a subcutaneous tunnel is created to the perineum. The muscle flap is placed between the rectum and vagina as an interposition, and related tissues are closed in layers; temporary fecal diversion can be considered if contamination is severe or decompression is needed. Imaging or perfusion techniques can be used intraoperatively to assess muscle flap viability. Postoperative monitoring focuses on lower limb function, incision and muscle flap perfusion, and, if a stoma is created, its function, with the goal of isolating the fistula tract and promoting healing. The above is general health information, not medical advice; specific details depend on specialist assessment and hospital protocols.
This procedure is often used for complex or recurrent fistulas. Typically, the gracilis muscle is dissected from the inner thigh under anesthesia, maintaining its blood supply, and a subcutaneous tunnel is created to the perineum. The muscle flap is placed between the rectum and vagina as an interposition, and related tissues are closed in layers; temporary fecal diversion can be considered if contamination is severe or decompression is needed. Imaging or perfusion techniques can be used intraoperatively to assess muscle flap viability. Postoperative monitoring focuses on lower limb function, incision and muscle flap perfusion, and, if a stoma is created, its function, with the goal of isolating the fistula tract and promoting healing. The above is general health information, not medical advice; specific details depend on specialist assessment and hospital protocols.

Preoperative assessment, hospitalization, and postoperative follow-up usually require 4–6 weeks in total; if a second-stage stoma closure is planned, the time will be arranged separately and is subject to actual assessment.

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