Department of Plastic Surgery Changhai Hospital Naval Military Medical University Shanghai 200433 China;
Department of Plastic Surgery Changhai Hospital Naval Military Medical University Shanghai 200433 China;
Department of Plastic Surgery Changhai Hospital Naval Military Medical University Shanghai 200433 China;
Department of Plastic Surgery Changhai Hospital Naval Military Medical University Shanghai 200433 China;
Department of Plastic Surgery Changhai Hospital Naval Military Medical University Shanghai 200433 China;
Department of Plastic Surgery Changhai Hospital Naval Military Medical University Shanghai 200433 China;
Department of Plastic Surgery Changhai Hospital Naval Military Medical University Shanghai 200433 China;
Department of Plastic Surgery Changhai Hospital Naval Military Medical University Shanghai 200433 China;
Transposition flaps; Perianal wound repair; Negative-pressure wound therapy;