## Core Concept
The management of sigmoid volvulus involves initial stabilization, detorsion, and then addressing the underlying cause to prevent recurrence. Sigmoid volvulus is a condition where the sigmoid colon twists around its mesenteric axis, leading to bowel obstruction.

## Why the Correct Answer is Right
After successful detorsion of a sigmoid volvulus, the next step is to perform a **sigmoid colectomy** or **resection** of the sigmoid colon. This is because the bowel may be ischemic or non-viable after the volvulus, and resection helps prevent complications like gangrene, perforation, or recurrence. The detorsion itself does not address the underlying risk of re-twisting or the potential for bowel ischemia.

## Why Each Wrong Option is Incorrect
- **Option A:** This option is blank and cannot be evaluated.
- **Option B:** This option is blank and cannot be evaluated.
- **Option C:** This option is blank and cannot be evaluated.
- **Option D:** This option is the correct answer but let's assume another option like "A. Conservative management" would be incorrect because, although conservative management (including bowel rest, fluids, and possibly endoscopic decompression) might be considered initially for a stable patient with a viable bowel, it does not address the need for resection post-detorsion to prevent recurrence and complications.

## Clinical Pearl / High-Yield Fact
A key point to remember is that sigmoid volvulus has a high recurrence rate if not treated definitively. Patients who are poor surgical candidates might undergo endoscopic decompression as a bridge, but surgery is often required for a more permanent solution.

## Correct Answer Line
**Correct Answer: D. Elective sigmoid colectomy.**