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

Ornstein, Ewald LU ; Franzen, Herbert; Johnsson, Ragnar LU ; Sandquist, Per; Stefansdottir, Anna LU and Sundberg, Martin LU (1999) In Acta Orthopaedica Scandinavica 70(4). p.338-342
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.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Acta Orthopaedica Scandinavica
volume
70
issue
4
pages
338 - 342
publisher
Taylor & Francis
external identifiers
  • pmid:10569262
  • scopus:0032705073
ISSN
0001-6470
DOI
10.3109/17453679908997821
language
English
LU publication?
yes
id
16a62c62-59da-411c-bc8a-37bad0652c64 (old id 1115293)
date added to LUP
2008-07-07 16:52:28
date last changed
2017-06-18 04:22:36
@article{16a62c62-59da-411c-bc8a-37bad0652c64,
  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.},
  author       = {Ornstein, Ewald and Franzen, Herbert and Johnsson, Ragnar and Sandquist, Per and Stefansdottir, Anna and Sundberg, Martin},
  issn         = {0001-6470},
  language     = {eng},
  number       = {4},
  pages        = {338--342},
  publisher    = {Taylor & Francis},
  series       = {Acta Orthopaedica Scandinavica},
  title        = {Migration of the acetabular component after revision with impacted morselized allografts: a radiostereometric 2-year follow-up analysis of 21 cases},
  url          = {http://dx.doi.org/10.3109/17453679908997821},
  volume       = {70},
  year         = {1999},
}