Decreased migration with locally administered bisphosphonate in cemented cup revisions using impaction bone grafting technique : A randomized, controlled study evaluated with RSA and DXA with a 2-year follow-up
Background and purpose — Impaction bone grafting (IBG) in revision hip surgery is an established method in restoring bone stock deficiencies. We hypothesized that local treatment of the morsellized allograft with a bisphosphonate in cemented revision would, in addition to increased bone density, also reduce the early migration of the cup as measured by radiostereometry (RSA). Patients and methods