To investigate the clinical outcome of laparoscopic APR with different pelvic floor reconstruction for patients with low rectal cancer.

Retrospective analysis were performed in 90 patients with low rectal cancer who underwent laparoscopic APR from March 2015 to June 2019. According to different pelvic floor reconstruction, 90 patients were divided into the patch group (n=43) and the suture group (n=47). Biological patch pelvic floor repairment were performed in the patch group and direct suture were performed in the suture group. Statistical analysis were performed by using SPSS 20.00 software. Postoperative complications were analyzed by using χ² test. Measurement data, such as surgical indicators and urination function, were expressed as (±s), and were examined by using independent t test. A P value <0.05 was statistically significant difference.

Compared with the Suture group, there were less intraoperative blood loss, less drainage time, less incision dressing change and faster incision recovery in the patch group, with statistically significant difference (P<0.05). The total incidence of postoperative complications in the patch group was better than that in the suture group (9.3% vs. 25.5%), with statistically significant difference (P<0.05). The maximum urinary flow rate and maximum bladder detrusor systolic blood pressure in the patch group were greater than the Suture group. The residual urine volume of the bladder was lower than that of the Suture group, with statistically significant difference (P<0.05).

Laparoscopic APR combined with biological mesh pelvic floor repairment could reduce postoperative complications, promote the healing of patients and improve the function of urination.