Related Experiment Video
Updated: Aug 17, 2026
Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
Published on: February 27, 2018
Structural characteristics of impaction allografting for revision total hip arthroplasty
Marcus C Robinson1, Göran Fernlund, R M Dominic Meek
1Division of Orthopaedic Engineering Research, 566-828, West 10th Avenue, The University of British Columbia, Vancouver, B.C., Canada V5Z 1L8 Canada.
Background:
The impaction allografting procedure for treatment of failed hip reconstructions has shown promising but variable results. The objective of this study was to compare the structural characteristics of revision total hip arthroplasty constructs with impaction allografting (cement+morsellized bone) with all-cement and all-morsellized bone constructs.
Methods:
Uniaxial cyclic compression was applied to a simplified uniaxial, parallel, aluminum tube model to simulate normal gait. Applied force and axial stem displacement were recorded to determine stem subsidence and construct stiffness.
Findings:
Introduction of a small amount of cement into the bone graft, as suggested in an impaction allografting procedure previously reported, makes the construct behave structurally more similar to an all-cemented construct than to an all-bone graft construct.
Interpretation:
The results suggest that the structural properties achieved in an impaction allografting construct are sensitive to the amount of cement in the graft and that care should be taken clinically to achieve consistent constructs.
