Migration of the acetabular component after revision with impacted morselized allografts: a radiostereometric 2-year follow-up analysis of 21 cases.

Abstract

In a consecutive series of hip revisions due to mechanical loosening, using impacted morselized allografts and cement, we followed 21 acetabular components by radiostereometric analysis (RSA) during 2 years. All but 1 acetabular component migrated in the proximal direction (median 2.1 (0.5-6.4) mm). 6 components migrated in the medial direction (median 0.8 (0.4-1.2) mm) and 6 in the lateral (median 0.8 (0.4-2.0) mm). 14 components migrated in the posterior direction (median 0.8 (0.3-2.3) mm) and 1 in the anterior 0.6 mm. The migration rate gradually decreased in all directions, but 7 acetabular components still migrated in at least 1 direction (median 0.3-0.6 mm) between 1.5 and 2 years postoperatively.

Statistics

0100200300'04'06'08'10'12'14'16
Citations per Year

275 Citations

Semantic Scholar estimates that this publication has 275 citations based on the available data.

See our FAQ for additional information.

Cite this paper

@article{Ornstein1999MigrationOT, title={Migration of the acetabular component after revision with impacted morselized allografts: a radiostereometric 2-year follow-up analysis of 21 cases.}, author={Ewald Ornstein and Herbert Franz{\'e}n and Ragnar Johnsson and Per Sandquist and Anna Stef{\'a}nsd{\'o}ttir and Martin Sundberg}, journal={Acta orthopaedica Scandinavica}, year={1999}, volume={70 4}, pages={338-42} }