Value of Defecography in the Diagnostic and Therapeutic Management of the Modified Wells Procedure for Rectal Prolapse

The main aim of this study was to explore the role of defecography in the preoperative diagnosis and postoperative evaluation of rectal prolapse surgery (modified Wells procedure). We collected and summarized the X-ray performance and then analyzed the results of 107 patients with defecatory dysfunction who underwent defecography from January 2020 to March 2021. Furthermore, the preoperative and 6-month postoperative defecography results and clinical symptoms of 25 patients who underwent rectal prolapse surgery (modified Wells procedure) were compared. Results showed that among the 107 patients with defecation dysfunction, women had worse defecography results than men (P < 0.01). A total of 25 patients successfully completed the surgery without complications such as infection and intestinal fistula and there was no recurrence at 12 months of follow-up. Compared with the preoperative results, anorectal angle during defecation, the depth of rectocele, and perineal descent were significantly improved after the surgery (P < 0.01). Moreover, the patient's feeling of obstructed defecation and incomplete defecation was significantly relieved compared to that before the procedure (P < 0.01). In conclusion, defecography can be used to diagnose rectal prolapse preoperatively and evaluate the surgical effect combined with clinical symptoms postoperatively, which provides a clinical reference.