The best replacement for fixation is regression.

The best alternatives to fixation are rated as following:
★★★★★  regression
★★★★★  internal fixation
★★★  obsession
★★★  external fixation
★★  reduction
★★  total hip replacement
★  nitrification
★  chemical fixation
★  paraformaldehyde
★  ammonification
★  subluxation
★  orif
★  open reduction external fixation
★  hemiarthroplasty
★  arthroplasty
★  mental set
  internal
  hip replacement
  complete hip replacement
  denitrification

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

Other search terms related to fixation and their ratings are:
★★★★★ permeabilization
★★★★ reduction
You have in mind a companion for fixation and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of fixation in all years. Click on graph for more.
fixation
regression
internal fixation