The best replacement for splint is cast.

The best alternatives to splint are rated as following:
★★★★★  cast
★★★  brace
★★★  night guard
★★★  mouth guard
★★★  stress fracture
★★  sling
★  bite plate
★  fracture
★  stax splint
★  buddy tape
  static splint
  dynamic
  lint
  stack splint
  orthotic
  orthosis
  cast buckle fracture
  pre- fabricated splint
  mouthguard
  nti
  dynamic splint
  cppcheck
  bite guard
  fracture brace
  belly bandit
  pc lint
  hard cast
  removable brace

Your alternative for splint is not listed? Suggest!
Speaking about splint, one probably shouldn't forget about pearson attachment.

Other search terms related to splint and their ratings are:
★★★★★ pearson attachment
★★ abducted thumb
★ laceration repair
★ thumb
You have in mind a companion for splint and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of splint in all years. Click on graph for more.
splint
cast
brace