The Effectiveness of Two Osteoporosis Drugs on Prosthetic Bone Mineral Density (BMD) Loss After Total Hip Arthroplasty(THA)

A Comparison of Alendronate vs. Alfacalcidol Medication for the Preservation of Bone Mineral Density Around the Femoral Implant and in the Lumbar Spine After a Total Hip Arthroplasty

The purpose of this study is to evaluate whether alendronate and alfacalcidol are effective on prosthetic or lumbar spine BMD after total hip arthroplasty.

Inclusion Criteria:

• osteoarthritis of the hip
• patients after total hip arthroplasty

Exclusion Criteria:

• diseases related to bone metabolism
• patients taking drugs which affect bone metabolism