Middle and Low rectal cancer
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: (1) The tumor was within 10 cm from the anal verge; (2) Preoperative pathologic examination confirmed adenocarcinoma of the rectum; (3) Complete MRI imaging data were available before surgery; (4) The depth of tumor invasion was T1-3; (5) Circumferential resection margin is assessed as negative via MRI; (6) R0 rection can be achieved with the evaluation of MRI.
Exclusion criteria
Exclusion criteria: (1) History of pelvic fracture; (2) history of pelvic surgery; (3) Emergency surgery due to intestinal obstruction and intestinal perforation caused by tumors.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pelvic outlet diameter;Pelvic outlet diameter;Pubic tuberosity height;Sacral height;Sacral depth;Interspinous distance between the ischial bones;Ischial tuberosity diameter;Mesangial span on both sides of the rectum;Anterior and posterior rectal mesangial span;Posterior mesangial thickness of the rectum; | — |
Secondary
| Measure | Time frame |
|---|---|
| The area of the rectal lumen of the intestine;Age;Gender;Body mass index;Preoperative neoadjuvant therapy;History of abdominal surgery;Tumor stage;Duration of surgery; | — |
Countries
China
Contacts
The First Affiliated Hospital of Zhengzhou University