What decides sphincter preservation
The distance from the tumour's lower edge to the top of the anal sphincter on MRI, whether the sphincter complex or levator muscles are invaded, tumour response after neoadjuvant treatment, and existing continence. Robotic total mesorectal excision helps in a narrow pelvis by allowing a controlled dissection right down to the pelvic floor.
Temporary versus permanent stoma
A temporary loop ileostomy protects a low join while it heals and is usually closed after 8–12 weeks once a contrast study confirms healing. A permanent colostomy is needed when the sphincter itself must be removed for a clear margin, as in abdominoperineal resection.
Living with a stoma if one is needed
Stoma siting is marked before surgery, and a stoma nurse teaches care before discharge. Most patients return to work, exercise and travel. Where a permanent stoma is unavoidable, that is explained before consent rather than discovered afterwards.
Common questions
- Will bowel function be normal after a low join?
- Urgency, frequency and clustering are common in the first six to twelve months — described as low anterior resection syndrome — and improve with pelvic floor exercises, diet adjustment and medication.
Related reading
This page is general education, reviewed by Dr. Ishaan Allahabadi, MCh Surgical Oncology (Edge Hill, UK) · MS Surgery · MBBS (Accredited by the Royal College of Surgeons of England). It is not a substitute for individual medical advice. Treatment decisions are made after reviewing your imaging and pathology, in a multidisciplinary tumour board.