LATERAL INTERNAL SPHINCTEROTOMY
DATE AND TIME: [Date and time]
URGENCY: Elective / Non-elective
SURGEON: [Name]
ASSISTANT: [Name / None]
ANAESTHETIST: [Name]
Indication: Chronic anal fissure (typically posterior midline) failing conservative and topical medical therapy. Elevated internal sphincter tone contributes to ischaemia and failure to heal.
Patient Position: Lithotomy or left lateral.
Anaesthesia: General, spinal, or local with sedation.