Movement pattern of the Exeter femoral stem: A radiostereometric analysis of 22 primary hip arthroplasties followed for 5 years
Stefansdottir, Anna LU ; Franzén, Herbert ; Johnsson, Ragnar ; Ornstein, Ewald LU and Sundberg, Martin LU
(2004)
In Acta Orthopaedica Scandinavica
75(4).
p.408-414
- Abstract
- Background The design of the Exeter stem may facilitate distal migration, but radiostereometric analysis (RSA) studies have been limited to 2 years of follow-up.
Patients and methods We followed migration of the Exeter femoral stems in 22 primary hip arthroplasties for 5 years with RSA.
Results All stems migrated distally and the median migration at 2 years was 1.34 mm, while at 5 years it was 1.77 mm. 7 stems migrated above accuracy between 3 and 5 years. (RSA) evaluation of the cement mantle could be performed in 14 cases, and in 5 slight migration was found. Most of the stems rotated towards retroversion and the median rotation at 2 years was 1.2°, while at 5 years it was 1.6°. We found 1 patient... (More) - Background The design of the Exeter stem may facilitate distal migration, but radiostereometric analysis (RSA) studies have been limited to 2 years of follow-up.
Patients and methods We followed migration of the Exeter femoral stems in 22 primary hip arthroplasties for 5 years with RSA.
Results All stems migrated distally and the median migration at 2 years was 1.34 mm, while at 5 years it was 1.77 mm. 7 stems migrated above accuracy between 3 and 5 years. (RSA) evaluation of the cement mantle could be performed in 14 cases, and in 5 slight migration was found. Most of the stems rotated towards retroversion and the median rotation at 2 years was 1.2°, while at 5 years it was 1.6°. We found 1 patient with impending clinical failure but no deviation in the RSA migration pattern, and 1 patient with unstable migration pattern but no clinical symptoms.
Interpretation We found a greater distal migration of the Exeter stem for longer periods of time than seen with other types of cemented implants. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/127126
- author
- Stefansdottir, Anna
LU
; Franzén, Herbert
; Johnsson, Ragnar
; Ornstein, Ewald
LU
and Sundberg, Martin
LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Acta Orthopaedica Scandinavica
- volume
- 75
- issue
- 4
- pages
- 408 - 414
- publisher
- Taylor & Francis
- external identifiers
-
- wos:000223745500006
- pmid:15370583
- scopus:4444287140
- pmid:15260415
- ISSN
- 0001-6470
- DOI
- 10.1080/00016470410001169-1
- language
- English
- LU publication?
- yes
- id
- 1bbdb4c2-f746-470a-92de-084d3ef32db7 (old id 127126)
- alternative location
- http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=Retrieve&db=PubMed&list_uids=15370583&dopt=Abstract
- date added to LUP
- 2016-04-01 16:55:34
- date last changed
- 2022-03-22 22:02:30
@article{1bbdb4c2-f746-470a-92de-084d3ef32db7,
abstract = {{Background The design of the Exeter stem may facilitate distal migration, but radiostereometric analysis (RSA) studies have been limited to 2 years of follow-up.<br/><br>
<br/><br>
Patients and methods We followed migration of the Exeter femoral stems in 22 primary hip arthroplasties for 5 years with RSA.<br/><br>
<br/><br>
Results All stems migrated distally and the median migration at 2 years was 1.34 mm, while at 5 years it was 1.77 mm. 7 stems migrated above accuracy between 3 and 5 years. (RSA) evaluation of the cement mantle could be performed in 14 cases, and in 5 slight migration was found. Most of the stems rotated towards retroversion and the median rotation at 2 years was 1.2°, while at 5 years it was 1.6°. We found 1 patient with impending clinical failure but no deviation in the RSA migration pattern, and 1 patient with unstable migration pattern but no clinical symptoms.<br/><br>
<br/><br>
Interpretation We found a greater distal migration of the Exeter stem for longer periods of time than seen with other types of cemented implants.}},
author = {{Stefansdottir, Anna and Franzén, Herbert and Johnsson, Ragnar and Ornstein, Ewald and Sundberg, Martin}},
issn = {{0001-6470}},
language = {{eng}},
number = {{4}},
pages = {{408--414}},
publisher = {{Taylor & Francis}},
series = {{Acta Orthopaedica Scandinavica}},
title = {{Movement pattern of the Exeter femoral stem: A radiostereometric analysis of 22 primary hip arthroplasties followed for 5 years}},
url = {{https://lup.lub.lu.se/search/files/4820626/624075.pdf}},
doi = {{10.1080/00016470410001169-1}},
volume = {{75}},
year = {{2004}},
}