The best replacement for osteopenia is osteoporosis.

The best alternatives to osteopenia are rated as following:
★★★★★  osteoporosis
★★★  osteoarthritis
★  osteomalacia
★  osteopenic
  rickets

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

Other search terms related to osteopenia and their ratings are:
★★★★★ fractures
★★★★ t scores
★★★ osteoarthritis
★ arthritis
You have in mind a companion for osteopenia and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of osteopenia in all years. Click on graph for more.
osteopenia
osteoporosis
osteoarthritis