The best replacement for volvulus is torsion.

The best alternatives to volvulus are rated as following:
★★★★★  torsion
★★★  intussusception
★★  malrotation
★  ileus
★  bascule
  bloat
  strangulation
  sigmoid

Your alternative for volvulus is not listed? Suggest!
Speaking about volvulus, one probably shouldn't forget about malrotation.

Other search terms related to volvulus and their ratings are:
★★★★★ malrotation
★★★ hiatal hernia
You have in mind a companion for volvulus and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of volvulus in all years. Click on graph for more.
volvulus
torsion
intussusception