Fig. 3

Trends in the number of intersphincteric resections of rectum over the years. A The number of intersphincteric resection of rectum of all rectal surgeries performed per year over the study period. Blue bars indicate the total rectal surgeries performed, orange bars indicate the number of intersphincteric resections of the rectum performed, the gray bars indicate those with local recurrence over the years, and yellow bars show those who had morbidity within 30 days after surgery. B The proportion of intersphincteric resection of rectum of all rectal surgeries performed per year over the study period. Blue bars indicate the total rectal surgeries performed, orange bars indicate the percentage of intersphincteric resections of the rectum performed, the gray bars indicate those with local recurrence over the years, and yellow bars show those who had morbidity within 30 days after surgery