Study Status: Completed
Recruit Status: Unknown status
Study Type: Observational
Official Title: A Randomized, Controlled, Multicenter Trial to Evaluate the Safety and Efficacy of Cylindrical Abdominoperineal Resection in the Treatment of Advanced Very Low Rectal Cancer
Brief Summary: The purpose of this study is to determine whether cylindrical abdominoperineal resection is effective in the treatment of advanced very low rectal cancer