“…In this study, we found that 3 patients in the LAARP group and 4 patients in the PSARP group with poor muscle quality developed prolapse, suggesting that muscle quality may be one of the factors to determine postoperative mucosal prolapse. Podevin et al [31] suggested that the extensive dissection of rectum and pelvis could maximize division of the anatomic attachments between the posterior rectum and sacrum and aggravate bladder and sphincter nerve plexus trauma. It is also suggested that to avoid damage, care should be taken when the dissection reaches the bladder neck, prostate, or lower end of the uterus [10].…”